Dalton Park B&K Tender 16 December 2013 Mastic asphalt roofing/ insulation/ finishes To be read with...

Dalton Park B&K specification

16 December 2013

Dalton Park B&K Tender

Table of Contents

Title Page

3Mastic asphalt roofing/ insulation/ finishesJ21

J21 Mastic asphalt roofing/ insulation/ finishes

To be read with Preliminaries/ General conditions.

TYPES OF COATING/ PAVING

126 MASTIC ASPHALT COATING• Manufacturer: Permanite Asphalt, member of the IKO Group.

- Web: www.permanite-asphalt.co.uk. - Email: [email protected]. - Product reference: Permaphalt Fullbond - Fire Performance: Achieving BS 476- 3: FAA. - Approvals; British Board of Agrément: Certificate No. 89/2299 & Loss Prevention

Certification Board (LPCB) Approved: Certificate No. 666a. - Primer: IKOpro Bitumen Primer - Rubber-modified bituminous priming solution. Build up

as below all in accordance with BBA certificate - Separating layer:IKO black sheathing felt - Modified Polimer Ashpalt - Two coat 20mm thick Permaphalt - Geotextile iolating Layer: IKO geotextile. - Insulation: Supertherm - Geotextile - Paving

180 SKIRTINGS/ VERTICAL WORK TO PARAPET WALLS• Substrate: Metal stud and cementious board.

- Preparation: Primer. • Separating layer: Reinforced bitumen sheathing felt with 50 mm minimum laps. • Keying: Expanded metal lathing to BS 8204-5, clause 5.4. • Coating: Mastic asphalt to BS 6925.

- Type: R988/ T25. - Application: 20 mm nominal thickness in three coats. - Height above finished roof level (minimum): 300 mm. - Fillet profile: 45° angle, 40 mm minimum width on face.

• Surface protection: Metal faced capsheet with bonded insulation. • Accessories: As drawings.

PERFORMANCE

205 COMPLETION OF DESIGN OF ROOF COVERINGS• Description: interface details and locations of movement joints. • Requirement: Complete the detailed design to satisfy specified performance criteria and

coordinate with the detailed design of related and adjacent work. • Structural requirements: As section B50. • Additional requirements: A Mastic Asphalt Council (MAC) ten year, triple guarantee

insurance scheme covering materials, workmanship and solvency of the roofing contractor is required or manufacturer backed 20 year scheme..

• Design and production information: Prior to commencement of work. • Timing of submissions: TBA.

210 ROOF PERFORMANCE• General: Secure, free draining and weathertight.

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PRODUCTS

320 PRIMER TO CONCRETE• Type: As recommended by mastic asphalt manufacturer. • Manufacturer: Submit proposals.

- Product reference: Submit proposals.

325 BONDING COMPOUND• Type: As recommended by mastic asphalt manufacturer for conditions and surface. • Manufacturer: Submit proposals.


340 PREFORMED SLEEVES, TRIMS, ETC• Type: Preformed flanged sleeve. • Manufacturer: Submit proposals.

- Product reference: Submit proposals. • Colour: Light grey. • Size: To suit service penetrations.

345 PERIMETER TRIMS• Type: GRP. • Manufacturer: Submit proposals.

- Product reference: Submit proposals. • Colour: Light grey. • Length (maximum): 3 m.

395 VAPOUR CONTROL LAYER• Type: Metal lined polyester bitumen membrane. • Manufacturer: Submit proposals.

- Product reference: Submit proposals. • Thickness: 2000 gauge. • Vapour resistance: 1300 MN s/g.

400 SEPARATING LAYER (LOOSE LAID)• Manufacturer: Submit proposals.

- Product reference: Submit proposals. • Type: Reinforced bitumen sheathing felt.

- Laps (minimum): 75 mm.

440 INVERTED ROOF INSULATION • Type: Expanded polystyrene board. • Standard: BBA certified. • Manufacturer: Permanite IKO.

- Product reference: Supertherm 300 XPS. . • Grade: EPS 300. • Recycled content: None permitted. • Edges: Rebated. • Thickness: 160mm. • Integral topping: Not required.

460 STONE BALLAST• Type: Washed, round aggregate. • Supplier: Contractor's choice. • Size: Graded 20-40 mm, free from fines and sharps. • Colour: Natural.

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465 PRECAST CONCRETE PAVING SLABS• Standard: To BS EN 1339 hydraulically pressed. • Manufacturer: Marshalls.

- Product reference: Saxon. • Colour/ Finish: Silver. • Recycled content: Contractor's choice. • Size: 600 x 600 x 50 mm - no cuts; stone ballast to perimeter.

467 SUPPORT SYSTEM FOR PRECAST CONCRETE PAVING SLABS• Manufacturer: Submit proposals.

- Product reference: Submit proposals. • Size: In accorance with IKO details. • Accessories: Levelling pads.

490 MINERAL/ METAL FACED CAP SHEET• Manufacturer: Contractor's choice .

- Product reference: Powder coated aluminium bonded to 80mm thick expanded polystyrene insulation .

EXECUTION GENERALLY

510 ADVERSE WEATHER• General: Do not lay mastic asphalt in wet or damp conditions unless effective temporary

cover is provided over working area. • Unfinished areas of the roof: Keep dry.

520 INCOMPLETE WORK• Daywork joints in warm roofs and edges of phased roofing: Adequately protected and fully

weathertight.

530 APPLYING PRIMERS• Coverage per coat (minimum): in accordance with manufacturers details. • Surface coverage: Even and full. • Coats: Fully bonded. Allow volatiles to dry off thoroughly between coats.

540 APPLYING BONDING COMPOUNDS• Roof sited boilers: Permitted. • Temperature of compound: Suitable to achieve bond over the whole surface. Do not

overheat. • Heat sensitive insulation materials: Use cold bituminous adhesive recommended by the

insulation manufacturer.

SUBSTRATES/ VAPOUR CONTROL LAYERS/ WARM DECK ROOF INSULATION

610 SUITABILITY OF SUBSTRATES• Substrates generally:

- Secure, even textured, clean, dry and frost free. • Preliminary work: Completed, including:

- Chases (minimum): 25 x 25 mm. - External angles: Chamfered where required to maintain full thickness of mastic asphalt. - Formation of upstands and kerbs. - Grading to correct falls. - Movement joints. - Penetrations/ Outlets.

• Moisture content and stability of substrate: Must not impair integrity of roof.

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642 KEYING TO VERTICAL/ SLOPING DENSE CONCRETE• Surface preparation: Remove mould oil, clean and apply proprietary high bond primer or

proprietary keying mix of cement:sand slurry incorporating a bonding agent.

648 KEYING TO METAL SURFACES• Surface preparation: Clean and apply proprietary high bond primer.

649 APPLYING METAL LATHING TO VERTICAL/ SLOPING UPSTANDS• Placing:

- Long way of mesh: Horizontal. - Pitch of horizontal strands: Sloping upwards away from background.

• Butt joints: Wire tie between sheets at 75 mm centres. • Method of fixing: Stainless steel staples.

- Perimeter edges: 75 mm centres. - General areas (maximum): 150 mm vertical and horizontal centres.

670 LAYING VAPOUR CONTROL LAYER• Attachment: Secure.

- Bond: Continuous with no air pockets. - Appearance on completion: Smooth.

• Side and head laps: Seal using materials and method recommended by membrane manufacturer.

• Joints in second layer (if any): Stagger by half a sheet. • Upstands, kerbs and other penetrations: Enclose edges of insulation. Fully seal at

abutment by bonding or taping.

695 SEPARATING LAYER• Give notice: Where it is or becomes apparent that a separating layer is required.

ASPHALTING

720 DELIVERY• Condition of mastic asphalt as delivered to site:

- Hot-prepared, do not remelt on site, or - Blocks: Remelt on site, mix thoroughly. Temperature of material (maximum), 230°C.

730 TRANSPORTING• Transport distances: Minimize to avoid excessive cooling of molten mastic asphalt. • Buckets, barrows or dumpers used for mastic asphalt: Line with minimum quantity of fine

inert dust. Use silica or similar acid resisting dust where acid resisting mastic asphalt is being used.

735 LOCALIZED HEATING• Blowlamps and gas torches: Use only types with controlled gradual heating during laying,

removal and repair of mastic asphalt.

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740 LAYING MASTIC ASPHALT• Standard: To BS 8218. • Application:

- In bays to even thickness. - Re-heated asphalt: Do not use.

• External angles, junctions and tuck-ins: Maintain full thickness of asphalt. • Fillets at internal angles: Solid, fully fused to asphalt coating. • Previously laid coats: Protect whilst exposed. • Successive coats:

- Timing: Apply without delay and within same working period. - Coats: Apply at right angles to preceding. - Stagger joints between bays in consecutive coats (minimum): 75 mm.

• Condition of contact edges of previously laid bays: Warm and clean. • Blowing: Pierce and make good affected areas while mastic asphalt is still at working

temperature. • Completion: During final floating operation, whilst asphalt is still warm, apply sand to

horizontal surfaces and rub in well using wooden float. Remove surplus material. • Surface condition at completion: Smooth and free from imperfections. Firmly adhered,

weatherproof and free draining.

750 MASTIC ASPHALT SKIRTINGS AND VERTICAL WORK• Top edge: Tuck into 25 x 25 mm continuous splayed chase or groove. • External angles: Maintain full thickness of asphalt. • Splayed top: Form to shed water away from substrate.

785 FIXING PERIMETER TRIMS• Separating layer: Terminated at trim. Do not carry under or over. • Trim:

- Setting out (minimum): 3 mm from wall or fascia. - Fasteners: 50 mm stainless steel countersunk wood screws to BS 1210. - Fixing: 30 mm from ends of trims and 300 mm (maximum) centres. - Jointing sleeves: Fix one side only.

• Expansion gap between ends of trim: 3 mm. - Corners pieces: Purpose made.

SURFACING

810 LAYING INVERTED ROOF INSULATION• Condition of substrate: Clean. • Setting out: Loose lay with staggered joints. Minimize cutting and avoid small cut pieces at

perimeters and penetrations. - Joints: Butt together.

• Projections, upstands, rainwater outlets, etc.: Cut insulation cleanly and fit closely around. • Completion:

- Boards must be in good condition, well fitting and stable. - Cover to prevent wind uplift and floatation as soon as practicable.

820 LAYING STONE BALLAST• Condition of substrate: Clean. • Gravel guards: Fit to outlets. • Previously laid materials: Protect during laying of ballast. • Laying: Spread evenly. Do not pile to excessive heights.

- Depth (minimum): 50 mm.

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840 LAYING PRECAST CONCRETE PAVING SLABS• Condition of substrate: Clean. • Setting out: Minimize cutting. • Laying: On 75 x 75 mm felt pads.

- Separating membrane: Geotextile filter. • Joints: Open.

- Width: Butt jointed. • Perimeter/ Upstands: gravel fill.

874 LAYING MINERAL/ METAL FACED CAP SHEETS• Setting out: Neatly, with carefully formed junctions. • Face of capsheet: Do not mark, crease or stain.

COMPLETION

910 INSPECTION• Interim and final roof inspections: Submit reports.

920 ELECTRONIC ROOF INTEGRITY TEST• Testing authority: UKAS approved laboratory. • Timing of test: Prior to completion. • Condition of roof prior to testing:

- Complete to a stage where integrity can be tested. - Surface: Clean.

• Test results and waterproof integrity certificate: Submit on completion of testing.

930 FLOOD TEST TO ROOF• Condition of roof prior to testing:

- Coating: Complete to a stage where integrity can be tested. - Surface: Clean.

• Outlets: Externally cover and seal. Protect against damage from water pressure using temporary kerbs. Do not use plugs to seal outlets.

• Flood levels: Submit proposals. In no case higher than kerbs. • Flood duration: 24 hours. • Inspection: Regular, to detect leaks. • Completion of test: Slowly drain roof. Do not overload or flood outlets. • Test results: Submit.

940 COMPLETION• Roof areas: Clean.

- Outlets: Clear. • Work necessary to provide a weathertight finish: Complete. • Storage of materials on finished surface: Not permitted. • Completed mastic asphalt roof coating: Do not damage. Protect from petroleum based

solvents and other chemicals, traffic and adjacent or high level working.

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16 December 2013


Table of Contents

Title Page

3Single layer polymeric sheet roof coveringsJ42

J42 Single layer polymeric sheet roof coverings


TYPES OF ROOF COVERING

112 WARM DECK ROOF COVERING TO GUTTER AREAS OF KFC and CINEMA • Manufacturer: Sika Limited.

- Web: www.sika.co.uk. - Email: [email protected]. - Product reference: Sika-Trocal SG 1.5

• Width: 2.0 m. • Colour: Light grey. • Accessories: Sika-Trocal injection moulded corners.

- additional requirements - 20 year manufacturer backed warranty and BBA certified. To be read in conjunction with Kingspan Topdek/trocal specification section H43 for main roof area of KFC.

PERFORMANCE

202 CONTRACTOR'S DESIGN OF ROOF COVERINGS• Design responsibility: Determine types and locations of fixings and joints in sheets. • Structural and fire requirements:

- Generally: As section B50. - Modifications: None. - Design: Complete the design in accordance with the designated code of practice to

satisfy specified performance criteria. • Functional requirements:

- Performance: As specified in this section. • Additional requirements: None. • Design and production information: to be povided prior to commencement. • Timing of submissions: prior to site commencement.

210 ROOF PERFORMANCE• Roof covering: Secure, free draining and weathertight.

PRODUCTS

320 PRIMER GENERALLY• Type: As membrane manufacturer's/ supplier's recommendations. • Manufacturer: Submit proposals.


325 ADHESIVE GENERALLY• Type: As membrane manufacturer's/ supplier's recommendations for conditions and

surface. • Manufacturer: Submit proposals.


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330 TIMBER TRIMS, ETC• Quality: Planed. Free from wane, pitch pockets, decay and insect attack except ambrosia

beetle damage. • Moisture content at time of covering (maximum): 22%. • Preservative treatment: As recommended for purpose by waterproof covering

manufacturer.

340 PREFORMED SLEEVES• Type: 0.6 mm galvanized steel flanged sleeve with 0.5 mm unreinforced membrane

laminate. • Manufacturer: Submit proposals.

- Product reference: Submit proposals. • Colour: Light grey. • Size: To suit penetrations.

345 PERIMETER TRIMS• Type: 0.6 mm galvanized steel with 0.5 mm unreinforced membrane laminate. • Manufacturer: Submit proposals.

- Product reference: Contractor's choice. • Colour: Light grey. • Size: As drawings.

355 MECHANICAL FASTENERS, WASHERS, PRESSURE PLATES, ETC• Type: As membrane manufacturer's/ supplier's recommendations. • Manufacturer: Submit proposals.


380 PROTECTION LAYER• Type: As membrane manufacturer's/ supplier's recommendations. • Manufacturer: Submit proposals.

- Product reference: Submit proposals. • Grade: submit proposals.

383 SEPARATING LAYER• Type: As membrane manufacturer's/ supplier's recommendations. • Manufacturer: Submit proposals.

- Product reference: Submit proposals. • Grade: Submit proposals.

410 EXPANDED POLYSTYRENE (EPS) WARM DECK ROOF INSULATION• Standard: To BS EN 13163. • Manufacturer: Dow Building Products or equal.

- Product reference: Styrofoam roofmate. • Grade: Roofmate LG-A. • Recycled content: None permitted. • Edges: Shiplap. • Thickness: 90 mm. • Facing: 10mm mortar.

EXECUTION GENERALLY

510 ADVERSE WEATHER• General: Do not lay membrane at temperatures below 5°C or in wet or damp conditions

unless effective temporary cover is provided over working area. • Unfinished areas of roof: Keep dry and protect edges of laid membrane from wind action.

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520 INCOMPLETE WORK• End of working day: Provide temporary seal to prevent water infiltration. • On resumption of work: Cut away tail of membrane from completed area and remove from

roof.

530 APPLYING PRIMERS • Coverage per coat (minimum): as manufacturers recommendations. • Surface coverage: Even and full. • Coats: Fully bonded. Allow volatiles to dry off thoroughly between coats.

SUBSTRATES/ VAPOUR CONTROL LAYERS/ WARM DECK ROOF INSULATION

610 SUITABILITY OF SUBSTRATES• Surfaces to be covered: Secure, clean, dry, smooth, free from frost, contaminants, voids

and protrusions. • Preliminary work: Complete, including

- Grading to correct falls. - Formation of upstands, kerbs, box gutters, sumps, grooves, chases and expansion

joints. - Fixing of battens, fillets and anchoring plugs/ strips.

• Moisture content and stability of substrate: Must not impair integrity of roof.

670 LAYING VAPOUR CONTROL LAYER • Laying: Fully bonded, flat and smooth. • Side and head laps: Seal using materials and method as membrane manufacturer's/

supplier's recommendations. • Upstands, kerbs and other penetrations: Enclose edges of insulation. Fully seal at

abutment by bonding or taping.

680 LAYING WARM DECK ROOF INSULATION• Setting out:

- Long edges: Fully supported and running at right angles to direction of span. - End edges: Adequately supported. - Joints: Butted together. - End joints: Staggered.

• Attachment: Fully fixed to substrate. • Mechanical fixing: Determined by contractor. • Completion: Boards must be in good condition, well fitting and secure.

WATERPROOF MEMBRANES/ ACCESSORIES

710 MECHANICAL FIXING OF WATERPROOF MEMBRANE• Setting out: as manufacturers recomendations. • Laying: Loose, do not wrinkle or stretch. • Installing fasteners:

- Use manufacturer's/ supplier's recommended methods and equipment. - Insertion: Correct and consistent.

• Washers/ Pressure plates/ Bars: - Distance from fixed edge (minimum): 10 mm. - Fixing: Flush with membrane.

• Sheet overlaps: Extend beyond washers/ pressure plates by minimum as manufacturers recomendations.

• Surface condition at completion: Fully sealed, smooth, weatherproof and free draining.

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720 ADHESIVE BONDING OF WATERPROOF MEMBRANE• Setting out: as manufacturers recomendations. • Attachment: as manufacturers recomendations.

- Do not wrinkle or stretch. • Surface condition at completion: Fully sealed, smooth, weatherproof and free draining.

730 WELDED JOINTING OF WATERPROOF MEMBRANE• Side and end joints:

- Laps (minimum): as manufacturers recomendations. - Preparation: Clean and dry surfaces beyond full width of joint. - Sealing: Weld together.

• Seam sealant: as manufacturers recomendations. • Condition at completion: Fully sealed, smooth, weatherproof and free draining.

760 PERIMETER OF MEMBRANE• General: Secure membrane at roof edge conditions, changes of plane, curb flashings,

upstands to roof lights, etc. with mechanical fasteners.

765 PERIMETER DETAILS FOR THERMOPLASTIC MEMBRANES• Upstands, edge trims, drips, kerbs, etc: Secure preformed metal sections to roof structure

with mechanical fasteners. • Roof membrane: Dress over perimeter profile. Overlap beyond fasteners by minimum as

manufacturers recomendations. - Sealing: Weld together.

770 PERIMETER DETAILS FOR THERMOPLASTIC MEMBRANES• Upstands, edge trims, drips, kerbs, etc: Form flashings from waterproof membrane

material. • Roof membrane: Terminate in horizontal plane immediately adjacent to change in direction

and secure with mechanical fasteners. • Flashings: Dress over perimeter profile. Overlap horizontal roof membrane beyond

perimeter securement by minimum as manufacturers recomendations. • Sealing: Mechanically fix and weld at overlap.

780 ROOF PENETRATIONS THROUGH THERMOPLASTIC MEMBRANES• Roof membrane: Cut around penetrations and secure to deck. • Flanged sleeve:

- Type: Preformed flanged sleeve. - Installation: Dress over and around penetration. - Roof membrane overlap to flange (minimum): 50 mm beyond fasteners. - Sealing: Weld flange to roof membrane. - Protection to top edge of sleeve: Flashing or weathering cravat.

SURFACING

850 LAYING MEMBRANE WALKWAYS• Attachment: Contact bonded - provide to the full perimeter .

COMPLETION

910 INSPECTION• Interim and final roof inspections: Submit reports.

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920 ELECTRONIC ROOF INTEGRITY TEST• Testing authority: UKAS approved laboratory. • Timing of test: Give notice. • Condition of roof prior to testing:

- Waterproof membrane complete to a stage where integrity can be tested. - Surface: Clean.

• Test results and warranty: Submit on completion of testing.

930 FLOOD TEST TO GUTTERS• Condition of roof prior to testing:

- Waterproof membrane complete to a stage where integrity can be tested. • Outlets: Externally cover and seal. Protect against damage from water pressure using

temporary kerbs. Do not use plugs to seal outlets. • Flood levels: Submit proposals. In no case higher than kerbs. • Flood duration: 24 hours. • Inspection: Regular, to detect leaks. • Completion of test: Slowly drain roof. Do not overload or flood outlets. • Test results and warranty: Submit on completion of testing.

940 COMPLETION• Roof areas: Clean.

- Outlets: Clear. • Work necessary to provide a weathertight finish: Complete. • Storage of materials on finished surface: Not permitted. • Completed membrane: Do not damage. Protect from traffic and adjacent or high level

working.

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16 December 2013


Table of Contents

Title Page

3General glazingL40

L40 General glazing


GENERAL REQUIREMENTS

110 PREGLAZING• Preglazing of components: Not permitted.

150 WORKMANSHIP GENERALLY• Glazing generally: To BS 6262. • Integrity: Glazing must be wind and watertight under all conditions with full allowance made

for deflections and other movements. • Dimensional tolerances: Panes/ sheets to be within ± 2 mm of specified dimensions. • Materials:

- Compatibility: Glass/ plastics, surround materials, sealers, primers and paints/ clear finishes to be used together to be compatible. Avoid contact between glazing panes/ units and alkaline materials such as cement and lime.

- Protection: Keep materials dry until fixed. Protect insulating glass units and plastics glazing sheets from the sun and other heat sources.

151 PREPARATION• Surrounds, rebates, grooves and beads: Cleaned and prepared by others.

152 PREPARATION• Surrounds, rebates, grooves and beads: Clean and prepare before installing glazing.

155 GLASS GENERALLY• Standards: To BS 952 and relevant parts of:

- BS EN 572 for basic soda lime silicate glass. - BS EN 1096 for coated glass. - BS EN 1748-1 for borosilicate glass. - BS EN 1748-2 for ceramic glass. - BS EN 1863 for heat strengthened soda lime silicate glass. - BS EN 12150 for thermally toughened soda lime silicate safety glass. - BS EN 12337 for chemically strengthened soda lime silicate glass. - BS EN 13024 for thermally toughened borosilicate safety glass. - BS EN ISO 12543 for laminated glass and laminated safety glass.

• Panes/ sheets: Clean and free from obvious scratches, bubbles, cracks, rippling, dimples and other defects. - Edges: Generally undamaged. Shells and chips not more than 2 mm deep and

extending not more than 5 mm across the surface are acceptable if ground out.

165 HEAT SOAKING OF THERMALLY TOUGHENED GLASS• Standard: To BS EN 14179.

- Holding period (minimum): 2 hours. - Mean glass temperature: 290° ± 10°C.

• Certified evidence of treatment: Submit. • Designated locations: All glazing to curtain walling.

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TYPES OF GLAZING

370 BEAD FIXED INSULATING GLASS UNITS TO MORRISONS CURTAIN WALLING• Pane material: 28 mm insulating glass units to BS EN 1279 and Kitemark certified .

- Inner pane: min 6 mm clear toughened glass . - Outer pane: min 6 mm clear toughened glass . - Spacer: as recomended by manufacture . - Perimeter taping: Do not use.

• Surround/ bead: Aluminium . - Preparation: Priming/ sealing not required . - Bead location: Outside . - Bead fixing: Pressure plate and cover cap .

• Glazing system: Preformed gasket sections supplied by window manufacturer . • Glazing installation:

- Insulating unit: Located centrally in surround using setting and location blocks. - Gaskets and beads: Installed as recommended by frame manufacturer.

Gasket fit at corners: Tight, without gaps. - Drainage and ventilation holes: Unobstructed.

375 BEAD FIXED INSULATING GLASS UNITS TO KFC CURTAIN WALLING• Pane material: 28 mm insulating glass units to BS EN 1279 and Kitemark certified .

- Inner pane: 6 mm clear toughened glass . - Outer pane: 6 mm clear toughened glass . - Spacer: as recomended by manufacture . - Perimeter taping: Do not use.





376 BEAD FIXED INSULATING GLASS UNITS TO CINEMA & RESTAURANT CURTAIN WALLING

• Pane material: 28 mm insulating glass units to BS EN 1279 and Kitemark certified . - Inner pane: min 6 mm clear toughened glass . - Outer pane: min 6 mm clear toughened glass . - Spacer: as recomended by manufacture . - Perimeter taping: Do not use.





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380 BEAD FIXED INSULATING GLASS UNITS TO TIMBER DOORS• Pane material: 24mm insulating glass units to BS EN 1279 and Kitemark certified .

- Inner pane: 6 mm clear toughened glass . - Outer pane: 6 mm clear toughened glass . - Spacer: 12 mm anodized aluminium, colour: Black . - Perimeter taping: Do not use.

• Surround/ bead: Hardwood . - Preparation: Sealant primer . - Bead location: Inside . - Bead fixing: stainless steel woodscrews .

• Glazing system: - Inner sealant: Low permeability sealant . - Outer sealant: Moisture vapour permeable sealant .

• Glazing installation: - Insulating unit: Located centrally in surround using setting and location blocks and

distance pieces. - Inner sealant: Applied to full height of rebate. - Outer sealant: Applied to fill edge clearance void and space between unit and beads up

to sight line. - Finished thickness of back and front bedding after inserting glazing (minimum): 3 mm. - Beads: Bedded on outer sealant and fixed securely. - Excess sealant: Trimmed to a smooth chamfer.

505 FIRE RESISTANT TAPE/ STRIP GLAZING _________• Fire resistance rating: _______ . • Pane material: _______ .

- Orientation: _______ . • Frame/ Surround material: _______ . • Beads:

- Material: _______ . - Location: _______ . - Fixing: _______ .

• Glazing system: - Tape/ Strip: _______ . - Pointing sealant: _______ .

• Installation: By a firm currently registered under a UKAS certified accreditation scheme for the installation of fire resistant glazing, in accordance with glazing manufacturer's recommendations.

515 FIRE RESISTANT CHANNEL GLAZING _________• Fire resistance rating: _______ . • Pane material: _______ .

- Orientation: _______ . • Frame/ Surround material: _______ . • Beads:

- Material: _______ . - Fixing: _______ .

• Fire resistant channel: _______ . - Aperture lining: Intumescent sheet/ strip recommended for the purpose by channel

manufacturer. • Installation: By a firm currently registered under a UKAS certified accreditation scheme for

the installation of fire resistant glazing, in accordance with glazing manufacturer's recommendations.

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630 MANIFESTATION TO TENANT • Design: Tenant specific requirements.

- Art work: To be obtained from Tenants prefrred supplier. - Media: Refer to Tenant specifications for contact details.

• Technique: Applied film.

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16 December 2013


Table of Contents

Title Page

3Fixings and adhesivesZ20

Z20 Fixings and adhesives


PRODUCTS

310 FASTENERS GENERALLY• Materials: To have:

- Bimetallic corrosion resistance appropriate to items being fixed. - Atmospheric corrosion resistance appropriate to fixing location.

• Appearance: Submit samples on request.

320 PACKINGS• Materials: Noncompressible, corrosion proof. • Area of packings: Sufficient to transfer loads.

330 NAILED TIMBER FASTENERS• Nails:

- Steel: To BS 1202-1 or BS EN 10230-1. - Copper: To BS EN 1202-2. - Aluminium: To BS 1202-3.

340 MASONRY FIXINGS• Light duty: Plugs and screws. • Heavy duty: Expansion anchors or chemical anchors.

350 PLUGS• Type: Proprietary types to suit substrate, loads to be supported and conditions expected in

use.

360 ANCHORS• Types:

- Expansion: For use in substrate strong enough to resist forces generated by expansion of anchor.

- Adhesive or chemical: For use in substrate where expansion of anchor would fracture substrate. For use in irregular substrate where expansion anchors cannot transfer load on anchor.

- Cavity: For use where the anchor is retained by toggles of the plug locking onto the inside face of the cavity.

370 WOOD SCREWS• Type:

- Wood screws (traditional pattern). Standard: To BS 1210. - Wood screws. Pattern: Parallel, fully threaded shank or twin thread types.

• Washers and screw cups: Where required are to be of same material as screw.

380 MISCELLANEOUS SCREWS• Type: To suit the fixing requirement of the components and substrate.

- Pattern: Self-tapping, metallic drive screws, or power driven screws. • Washers and screw cups: Where required to be of same material as screw.

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390 ADHESIVES GENERALLY• Standards:

- Hot-setting phenolic and aminoplastic: To BS 1203. - Thermosetting wood adhesives: To BS EN 12765. - Thermoplastic adhesives: To BS EN 204.

410 POWDER ACTUATED FIXING SYSTEMS• Types of fastener, accessories and consumables: As recommended by tool manufacturer.

EXECUTION

610 FIXING GENERALLY• Integrity of supported components: Select types, sizes, quantities and spacings of fixings,

fasteners and packings to retain supported components without distortion or loss of support.

• Components, substrates, fixings and fasteners of dissimilar metals: Isolate with washers/ sleeves to avoid bimetallic corrosion.

• Appearance: Fixings to be in straight lines at regular centres.

620 FIXING THROUGH FINISHES• Penetration of fasteners and plugs into substrate: To achieve a secure fixing.

630 FIXING PACKINGS• Function: To take up tolerances and prevent distortion of materials and components. • Limits: Do not use packings beyond thicknesses recommended by fixings and fasteners

manufacturer. • Locations: Not within zones to be filled with sealant.

640 FIXING CRAMPS• Cramp positions: Maximum 150 mm from each end of frame sections and at 600 mm

maximum centres. • Fasteners: Fix cramps to frames with screws of same material as cramps. • Fixings in masonry work: Fully bed in mortar.

650 NAILED TIMBER FIXING• Penetration: Drive fully in without splitting or crushing timber. • Surfaces visible in completed work: Punch nail heads below wrot surfaces. • Nailed timber joints: Two nails per joint (minimum), opposed skew driven.

660 SCREW FIXING• Finished level of countersunk screw heads:

- Exposed: Flush with timber surface. - Concealed (holes filled or stopped): Sink minimum 2 mm below surface.

670 PELLETED COUNTERSUNK SCREW FIXING• Finished level of countersunk screw heads: Minimum 6 mm below timber surface. • Pellets: Cut from matching timber, match grain and glue in to full depth of hole. • Finished level of pellets: Flush with surface.

680 PLUGGED COUNTERSUNK SCREW FIXING• Finished level of countersunk screw heads: Minimum 6 mm below timber surface. • Plugs: Glue in to full depth of hole. • Finished level of plugs: Projecting above surface.

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690 USING POWDER ACTUATED FIXING SYSTEMS• Powder actuated fixing tools: To BS 4078-2 and Kitemark certified. • Operatives: Trained and certified as competent by tool manufacturer.

700 APPLYING ADHESIVES• Surfaces: Clean. Adjust regularity and texture to suit bonding and gap filling characteristics

of adhesive. • Support and clamping during setting: Provide as necessary. Do not mark surfaces of or

distort components being fixed. • Finished adhesive joints: Fully bonded. Free of surplus adhesive.

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16 December 2013


Table of Contents

Title Page

3Curtain wallingH11

H11 Curtain walling


TENDERING

10 INFORMATION TO BE PROVIDED WITH TENDER• Submit the following curtain walling particulars:

- Typical plan, section and elevation drawings at suitable scales. - Typical detailed drawings at large scales, including all interface details . - Technical information and certification demonstrating compliance with specification of

proposed incorporated products and finishes, including double glazed units . - Certification, reports and calculations demonstrating compliance with specification of

proposed curtain walling. - Proposals for connections to and support from the building structure and building

components. - Proposals for amendments to primary supporting structure and for secondary supporting

structure additional to that shown on preliminary design drawings. - Schedule of builder's work, special provisions and special attendance by others. - Examples of standard documentation from which project quality plan will be prepared. - Preliminary fabrication and installation method statements and programme. - Schedule of products and finishes with a design life expectancy less than that specified

in clause 440, with proposals for frequencies and methods of replacement. - Proposals for replacing damaged or failed products. - Areas of non-compliance with the specification.

3

TYPES OF CURTAIN WALLING

110 CURTAIN WALLING T0 CINEMA AND RESTAURANTS• Supporting structure: Generally steel frame . • Curtain walling system:

- Manufacturer: Technal or equal and approved . Product reference: MX visible grid .

- Type: 50mm stick system . • Internal framing member:

- Material: Aluminium . - Finish: Powder coating .

Colour/ texture: RAL 9006 metallic . Minimum film thickness: 60 micrometres .

• External cover cap: - Material: Aluminium . - Finish: Powder coating .


• Glazing: heat soaked Insulating glass units . - Inner pane: Thermally toughened glass . - Outer pane: Thermally toughened glass .

• Glazing system: Gaskets, cover plate fixed . • Panel/ facing type: Not applicable .

- External material: Not applicable . - External finish: Not applicable . - Internal material: Not applicable . - Internal finish: Not required . - Core insulation: Not required .

• Accessories: Perimeter flashings . • Incorporated components: Doors and automatic operating system . • Other requirements: Manuafacturer to complete the detailed design and confirm box

section depth however the back box is to be a minimum of 100mm.Tenant specific doors are to be provided as shown on elevations.Frankie and Benny's are to be constructed from Sapelle with internal bead fixed double glazed units. All main doors are to be fully automatic. .

4

111 CURTAIN WALLING KFC• Supporting structure: Generally steel frame . • Curtain walling system:







• Glazing: heat soaked Insulating glass units with single glazed panels to KFC service yard enclosure . - Inner pane: Thermally toughened glass . - Outer pane: Thermally toughened glass .

• Glazing system: Gaskets, cover plate fixed . • Panel/ facing type: Double glazed units with ceramic coloured inner leaf to insulated

blockwork panels . - External material: Thermally toughened glass . - External finish: Not applicable . - Internal material: Laminated ceramic coated glass . - Internal finish: White ceramic . - Core insulation: 100mm closed cell extruded insulation bonded to face of ceramic

coating . • Accessories: Perimeter flashings . • Incorporated components: Doors and automatic operating system . • Other requirements: Manuafacturer to complete the detailed design and confirm box

section depth however the back box is to be a minimum of 100mm.Tenant specific doors are to be provided as shown on elevations. All main doors are to be fully automatic .

5

112 CURTAIN WALLING T0 MORRISONS• Supporting structure: Generally steel frame . • Curtain walling system:




Colour/ texture: Morrisons Green - BS14C39 . Minimum film thickness: 60 micrometres .


Colour/ texture: Morrisons Green - BS14C39 . Minimum film thickness: 60 micrometres .

• Glazing: Heat soaked Insulating glass units . - Inner pane: Thermally toughened glass . - Outer pane: Thermally toughened glass .

• Glazing system: Gaskets, cover plate fixed . • Panel/ facing type: Double glazed units with ceramic coloured inner leaf to insulated

blockwork panels- variation of colours to panels- refer to elevations . - External material: n/a . - External finish: Not applicable . - Internal material: n/a . - Internal finish: Not required . - Core insulation: Not required .

• Accessories: Perimeter flashings . • Incorporated components: Doors and automatic operating system . • Other requirements: Manuafacturer to complete the detailed design and confirm box

section depth however the back box section is to be a miniumun of 180mm deep .

135 DOORS CINEMA AND RESTAURANT - WHERE NON SPECIFIC TENANT DOORS ARE REQUIRED - Refer to elevations

• Manufacturer: BESAM or Ingersol Rand . - Product reference: bi-parting 4 panel fully doubled glazed units to internal and external

main entrance doors automatically activated by infra red detection with door and mechanical locking system. Tight seal thermally broken profiles with full width retraction to maximise opening width. Key operated 5 programme selecto .

• Material: Aluminium . • Finish: Powder coating .

- Colour/ texture: RAL 9006 Metallic . - Minimum film thickness: 60 micrometres .

• Fixing: Strictly in accordance with manufacturers recommendations . • Other requirements: Designed to BS 7036 CoP for pedestrian use .

6

136 DOORS KFC• Manufacturer: Configure Limited - tel 0844 8481622 and SAS (senior aluminium systems)

SFG and SD door series . - Product reference: KFC standard .


- Colour/ texture: doors and frame to be to KFC standard bronze XDKCO38 . - Minimum film thickness: 60 micrometres .

• Fixing: in accordance with manufacturers instructions . • Other requirements: Power asssited openers to comply with DDA requirements and to

have SS push pad fitted externally on a glazed barrier sccreen with door stop. All doors are to be draught proofed and provided with anti trap guards. Circular handles provided to main doors supplied by Sherwood Aluminium Systems Limited (01773 863863) and red inserts (RAL 3001) to be obtained from ASG Limited (01628 706800) to be fitted to recessed side of each door handle.Frame to be steel constuction and locks to be obtained from Total Security Installations (0207 5115555) .

137 DOORS TO MORRISONS• Manufacturer: BESAM or Ingersol Rand .

- Product reference: bi-parting 4 panel fully doubled glazed units to internal and external main entrance doors automatically activated by infra red detection with door and mechanical locking system. Tight seal thermally broken profiles with full width retraction to maximise opening width. Key operated 5 programme selector .


- Colour/ texture: BS14C39 . - Minimum film thickness: 60 micrometres .

• Fixing: In strict accordance with manufacturers recommendations . • Other requirements: Designed to BS 7036 CoP for pedestrian use. .

GENERAL REQUIREMENTS/ PREPARATORY WORK

210 DESIGN• Curtain walling and associated features: Complete the detailed design. Submit before

commencement of fabrication. • Related works: Coordinate in the detailed design.

215 DESIGN PROPOSALS• Submission of alternative proposals: Preliminary design drawings indicate intent. Other

reasonable proposals will be considered.

220 SPECIFICATION• Compliance standard: The Centre for Window and Cladding Technology (CWCT)

'Standard for systemised building envelopes'. • Reference information: For the duration of the contract, keep available at the design office,

workshop and on site copies of: - The CWCT 'Standard for systemised building envelopes'. - Publications invoked by the CWCT 'Standard for systemised building envelopes'.

7

230 INFORMATION TO BE PROVIDED DURING DETAILED DESIGN STAGE• Submit the following curtain walling particulars:

- A schedule of detailed drawings and dates for submission for comment. - A schedule of loads that will be transmitted from the curtain walling to the structure. - Proposed fixing anchor details relevant to structural design and construction. - A detailed testing programme in compliance with the Main Contract master programme. - A detailed fabrication and installation programme in compliance with the Main Contract

master programme. - Proposals to support outstanding applications for Building Regulation consents or

relaxations.

232 QUALITY PLAN• Requirement: Submit during detailed design. • Content: In accordance with BS 5750, BS EN ISO 9001 and including the following:

- Name of the quality manager. - Quality assessment procedures. - Inspection procedures to be adopted in checking the work. - Stages at which check lists will be used and samples of the lists. - List of work procedures on the correct use of materials or components, both off site and

on site. - List of product information with latest revisions. - Subcontractors involved in the work. - Subcontractors' quality plans. - Storage, handling, transport and protection procedures. - Procedure for registering and reporting non compliances. - Maintenance procedures and calibration records. - Certification that completed work complies with specification. - Check list register to ensure all items have been inspected and non compliances

discharged.

235 INFORMATION TO BE PROVIDED BEFORE COMMENCEMENT TESTING OR FABRICATION OF CURTAIN WALLING

• Submit the following curtain walling particulars: - Detailed drawings to fully describe fabrication and installation. - Detailed calculations to prove compliance with design/ performance requirements. - Project specific fabrication, handling and installation method statements. - Certification for incorporated components manufactured by others confirming their

suitability for proposed locations in the curtain walling. - Recommendations for spare parts for future repairs or replacements.

• Recommendations for safe dismantling and recycling or disposal of products.

250 PRODUCT SAMPLES• General: Before commencing detailed design, submit labelled samples of: standard

assembly and insulated panel .

260 SAMPLES OF FIXINGS• General: During detailed design, submit labelled samples of each type of fixing anchor,

including casting-in restraints and shims, together with manufacturers' recommended torque figures.

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DESIGN/ PERFORMANCE REQUIREMENTS

305 CWCT 'STANDARD FOR SYSTEMISED BUILDING ENVELOPES'• General: Unless specified or agreed otherwise comply with:

Part 2 - Loads, fixings and movement. Part 3 - Air, water and wind resistance. Part 4 - Operable components, additional elements and means of access. Part 5 - Thermal, moisture and acoustic performance. Part 6 - Fire performance Part 7 - Robustness, durability, tolerances and workmanship.

• Project performance requirements specified in this subsection: Read in conjunction with CWCT performance criteria.

313 INTEGRITY• Requirement: The curtain walling must resist wind loads, dead loads and design live loads,

and accommodate deflections and movements without damage. • Design wind pressure: Calculate in accordance with: BS EN 1991-1-4 and National Annex

- submit calculations to Fairhurst for review prior to manufacture. • Hard body impact loads: In accordance with CWCT TN75:

- Location and category: all to category A. • Soft body impact loads - curtain walling to BS EN 14019:

- Location and classification: To be confirmed by Fairhurst . • Soft body impact loads - glass to BS EN 12600:

- Location and classification: To be confirmed by Fairhurst. • Permanent imposed loads: To be confirmed by Fairhurst. • Temporary imposed loads: To be confirmed by Fairhurst.

320 DEFLECTION UNDER DEAD LOADS• Requirement: Framing members parallel to the curtain walling plane must not:

- Reduce glass bite to less than 75% of design dimension. - Reduce edge clearance to less than 3 mm between members and immediately adjacent

glazing units, panel/ facing units or other fixed units. - Reduce clearance to less than 2 mm between members and movable components such

as doors and windows.

325 DEFLECTION UNDER WIND LOAD• Requirement: To CWCT 'Standard for systemised building envelopes' clause 3.5 2 and the

following additional requirements: None. • Additional stiffness to CWCT 'Standard for systemised building envelopes' clause 3.5 4.2: Not allowed.

330 GENERAL MOVEMENT• Requirement: Curtain walling must accommodate anticipated building movements as

follows: Deflection head to suit steelwork design .

333 APPEARANCE AND FIT• Requirement: Design curtain walling system:

- To ensure position and alignment of all parts and features as shown on preliminary design drawings.

- To accommodate deviations in the primary support structure. • Primary support structure: Before commencing installation of curtain walling system, carry

out survey sufficient to verify that required accuracy of erection can be achieved. - Give notice: If the structure will not allow the required accuracy or security of erection. - Design tolerances: Refer to Fairhurst steelwork specification.

• Maximum permitted component and installation tolerances: Panel length and width +/- 1mm.

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335 THERMAL MOVEMENT - SERVICE TEMPERATURE RANGES• Requirement: To CWCT 'Standard for systemised building envelopes' clause 2.7.2

amended and/ or with the addition of the following: None.

340 AIR PERMEABILITY• Requirement: Permissible air leakage rates of 1.5m³/hr/m² for fixed lights and 2.0

m³/hr/lin.m for opening lights must not be exceeded when the curtain walling is subjected to the peak test pressure.

• Permeability class to BS EN 12152: A4. - Peak test pressure: 600 Pa.

345 AIR PERMEABILITY EXFILTRATION• Requirement: The maximum permissible air exfiltration rate through the curtain walling

system must not exceed: 4 m³/(h.m²) at a test pressure of 100 Pa..

350 WATER PENETRATION• Watertightness class to BS EN 12154: R7.

- Peak test pressure: 600 Pa. • Additional requirements: Underside of any transom not to be wetted at peak test pressure.

370 THERMAL PROPERTIES• Method of calculating the thermal transmittance (U-value) of curtain walling/ each zone of

curtain walling: Weighted U-value. • Average U-value of curtain walling: 1.2w/m2K. • Curtain wall zone interfaces: Co-ordinate to achieve required average U-value. • Method for assessing thermal transmittance (U-value) of assemblies: By calculation.

380 SOLAR AND LIGHT CONTROL• Total solar energy transmission:

- Maximum g-value - glazing only: Refer to TGA specification and thermal model. - Maximum effective g-value - glazing with shading devices: Refer to TGA specification

and thermal model. • Visible light transmission:

- Minimum light transmission - glazing only: Refer to TGA specification and thermal model.

- Minimum effective light transmission - glazing with shading devices: Refer to TGA specification and thermal model.

385 THERMAL STRESS IN GLAZING• Glass panes/ units: Must have adequate resistance to thermal stress generated by

orientation, shading, solar control and construction.

390 AVOIDANCE OF CONDENSATION• Requirement: Notional psychrometric conditions under which condensation must not form

on building interior surfaces of framing members or any part of infill panels/ facings are: - Notional outdoor psychrometric conditions as BS 6229, table A1. - Notional indoor psychrometric conditions:

Temperature: 20°C. Relative humidity: 50%. Vapour pressure: 1.28 kPa .

425 INTERNAL SURFACE SPREAD OF FLAME OF CURTAIN WALLING• Standard: To BS 476-7.

- Class 0.

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426 REACTION TO FIRE OF CURTAIN WALLING• Standard: To BS EN 13501-1.

- Class: B-s3, d2 or better.

430 FIRE STOPPING• Locations: At junctions of curtain walling with compartment walls and floors. • Materials and methods of fixing: To ensure fire resistance not less than that specified for

compartment walls and floors.

436 DOORS AND OTHER ACCESS FACILITIES• Performance criteria: To CWCT 'Standard for systemised building envelopes' Part 3. • Access facilities designated for use by disabled persons: to all main entrance conditions. • Strength and durability: To CWCT 'Standard for systemised building envelopes' clause

4.3.3. - Forces and tests: class 8 severe.

• Security: - Applicable doors: All. - Security rating: To LPS 1175 security rating classification 8.

440 DURABILITY• Relevant agents or degradation mechanisms: Close proximity to Maranine environment. • Design life of the curtain walling system: Not less than 30 years. • Secondary components: Submit details together with required maintenance regime,

replacement periods and methods of replacement.

445 LIGHTNING PROTECTION SYSTEM• Curtain wall components used as part of lightning protection system: None.

450 SAFETY• Finished surfaces of curtain walling: Accessible internal and external areas must not:

- Have irregularities capable of inflicting personal injury. - Release irritant or staining substances.

TESTING

510 COMPARISON (TYPE) TESTING• Requirement: To CWCT 'Standard for systemised building envelopes', Part 8. • Test results and reports: Before commencement of curtain walling fabrication and

installation, submit proof of compliance with this specification.

520 PROJECT TESTING (SITE)• Test results and reports: Before installation of general areas of curtain walling, submit proof

of compliance with this specification.

530 TESTING AUTHORITY• Requirement: Project testing must be carried out by a United Kingdom Accreditation

Service (UKAS) approved independent laboratory.

635 SITE HOSE TEST• Requirement: To CWCT 'Standard for systemised building envelopes', 'Standard test

methods for building envelopes' Section 9. - Joints to be tested: All joints to each building.

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PRODUCTS

710 ALUMINIUM ALLOY FRAMING SECTIONS• Standard: To relevant parts of BS EN 515, BS EN 573, BS EN 755 and BS EN 12020. • Alloy, temper and thickness: Suitable for the application and specified finish. • Structural members: To BS 8118.

712 ALUMINIUM ALLOY SHEET• Standards: To relevant parts of BS EN 485, BS EN 515 and BS EN 573. • Alloy, temper and thickness: Suitable for the application and specified finish.

715 CARBON STEEL FRAMING SECTIONS/ REINFORCEMENT• Standards: To relevant parts of BS 7668, BS EN 10029, and BS EN 10210. • Thickness: Suitable for the application, and for galvanizing or other protective coating.

717 CARBON STEEL SHEET• Standards: To relevant parts of BS 1449-1, BS EN 10048, BS EN 10051, BS EN 10111,

BS EN 10131, BS EN 10132, BS EN 10139, BS EN 10140, BS EN 10149, BS EN 10209 and BS EN 10268.

• Grade and thickness: Suitable for the application, and for galvanizing or other protective coating.

720 STAINLESS STEEL SHEET• Standards: To relevant parts of BS EN 10029, BS EN 10048, BS EN 10051, BS EN 10095

and BS EN ISO 9445. • Grade: To BS EN 10088-2, austenitic 1.4301 (304) generally, 1.4401 (316) when used

externally or in severely corrosive environments. • Thickness: Suitable for the application.

730 MECHANICAL FIXINGS• Stainless steel: To BS EN ISO 3506, grade A2 generally, grade A4 when used in severely

corrosive environments. • Carbon steel: To BS 4190 and suitable for galvanizing or other protective coating. • Aluminium brackets, rivets and shear pins: To relevant parts of BS EN 755.

732 ADHESIVES• General: Not degradable by moisture or water vapour.

735 FIXING ANCHORS• Type and use: Reviewed and approved by fixing manufacturers. Submit confirmatory

information on request. • Dimensions: Not less than recommended by their manufacturers. • Adjustment capability: Sufficient in three dimensions to accommodate building structure

and curtain walling fabrication/ installation tolerances.

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737 GLASS GENERALLY• Standards: To BS 952 and relevant parts of:

- BS EN 572 for basic soda lime silicate glass. - BS EN 1096 for coated glass. - BS EN 1748 for borosilicate glass. - BS EN 1863-1 for heat strengthened soda lime silicate glass. - BS EN 12150 for thermally toughened soda lime silicate glass. - BS EN 13024 for thermally toughened borosilicate glass. - BS EN ISO 12543 for laminated glass.

• Selection of glass type and thickness in accordance with recommendations of CIRIA publication 'Glazing at height'.

• Glass quality: Clean and free from obvious scratches, bubbles, cracks, ripplings, dimples and other defects.

• Glass edges: Generally undamaged. Shells and chips not more than 2 mm deep and extending not more than 5 mm across the surface are acceptable if ground out.

742 HEAT SOAKED THERMALLY TOUGHENED GLASS• Standard: To BS EN 14179.

- Holding period: 2 hours. • Locations of heat soaked glass: All.

745 INSULATING GLASS UNITS• Standard and labels for hermetically sealed units: To BS EN 1279. • Label: Each pane. • Colour of aluminium perimeter spacers: Black. • Perimeter taping: Not to be used. • Perimeter seals:

- Resistant to UV light degradation on exposed edges. - Compatible with structural, assembly and weather sealants.

747 GLASS EDGE CONDITION FOR STRUCTURAL SEALANT GLAZING• Bonded, unframed outer edges: Flat ground with a small arris suitable for open jointing or

for weatherseal jointing.

750 INFILL PANELS/ FACINGS• Tolerances:

- Deviation in size (maximum): ± 1 mm. - Deviation in flatness from plane per 2 m length (maximum): ± 1 mm.

• Rigidity: Adequate to comply with design/ performance requirements.

760 GASKETS• Material:

- Noncellular rubber to BS 4255-1. - Cellular rubber to ASTM-C509.

• Continuity: Outer gaskets of single front sealed curtain walling systems and inner gaskets of drained and ventilated or pressure equalized curtain walling systems must be formed in a complete frame with sealed joints. Vulcanized rubber gaskets must have factory moulded corner joints.

• Durability: Resistant to oxidation, ozone and UV degradation.

13

765 WEATHERSTRIPPING OF OPENING UNITS• Material:

- Noncellular rubber to BS 4255-1. - Cellular rubber to ASTM-C509. - Polypropylene woven pile, silicone treated.

• Attachment: Fixed in undercut grooves in framing sections using preformed corners, with any joints in the length.

770 GENERAL SEALANTS• Selection: In accordance with BS 6213 from:

- Silicone. - One part polysulfide. - Two part polysulfide. - One or two part polyurethane.

• Classification and requirements: To BS EN ISO 11600. • Reaction to contact products and finishes: Stable and compatible.

772 CURTAIN WALLING JOINT ASSEMBLY SEALANTS• Material: One part, low modulus silicone to BS EN ISO 11600, type F or G. Neutral curing

where in contact with or close proximity to other products that may be adversely affected by acetoxy curing.

• Manufacturer: Contractor's choice. - Product reference: Contractors choice.

780 THERMAL INSULATION• Material: Expanded extruded closed cell insulation.

- Recycled content: Not applicable. - Properties: Durable, rot and vermin proof and not degradable by moisture or water

vapour. • Fixing: Attached to or supported within the curtain walling so as not to bulge, sag,

delaminate or detach during installation or in situ during the life of the curtain walling.

785 VAPOUR CONTROL LAYER • Acceptable materials:

- Aluminium alloy. - Carbon steel, galvanized or protective coated. - Stainless steel. - Reinforced membranes: Foil, plastics or rubbers, protected both sides by rigid facings/

linings. • Location: Warm side of thermal insulation. • Integrity: Continuous, free from gaps and sealed at joints.

FINISHES

810 PROTECTIVE COATING OF CARBON STEEL FRAMING SECTIONS/ REINFORCEMENT

• Treatment: One of the following to all surfaces: - Hot dip galvanized to BS EN ISO 1461. - An appropriate equivalent coating to BS 5493, BS EN ISO 12944 or BS EN ISO 14713.

14

820 PROTECTIVE COATING OF CARBON STEEL MECHANICAL FIXINGS• Treatment: One of the following to all surfaces:

- Hot dip galvanized to BS EN ISO 1461. - Sherardized to BS 4921, class 1 coating thickness and passivated. - Zinc plated to BS EN ISO 2081, coating designation Fe//Zn//C for an iridescent (yellow

passivate) chromate conversion coating or Fe//Zn//D for an opaque (olive green) chromate conversion coating.

830 POWDER COATING• Requirement: As section Z31.

FABRICATION AND INSTALLATION

910 GENERALLY• Electrolytic corrosion: Prevent. Submit proposed methods. • Fixings: Concealed unless indicated on detailed drawings. Where exposed they must

match material and finish of the products fixed. • Fabrication: Machine cut and drill products in the workshop wherever possible. • Identification of products: Mark or tag to facilitate identification during assembly, handling,

storage and installation. Do not mark surfaces visible in the completed installation.

912 METALWORK• Requirement: As section Z11, unless specified otherwise in this section.

915 GLAZING• Requirement: As section L40, unless specified otherwise in this section. • Directional patterned/ wired glass: Generally fix parallel to surround and align adjacent

panes where seen together at close quarters.

917 FIXINGS/ ADHESIVES APPLICATION• Requirement: As section Z20, unless specified otherwise in this section.

920 SEALANT APPLICATION• Requirement: As section Z22, unless specified otherwise in this section.

930 ASSEMBLY• General: Carry out as much assembly as possible in the workshop. • Joints (other than movement joints): Rigidly secured, reinforced where necessary and fixed

with hairline abutments. • Displacement of components in assembled units: Submit proposals for reassembly on site.

955 FIXING ANCHOR INSTALLATION• Site drilling or cutting into structure: Submit proposals for positions other than shown on

detailed drawings. • Concrete supporting structure:

- Cast-in inserts: Provide detailed locational information. Protect cavities in inserts from entry of concrete.

- Edge fixing distances: Not less than recommended by fixing anchor manufacturers. • Corrective fabrication: Minimize. Where necessary, submit proposals.

15

970 CURTAIN WALLING INSTALLATION• Securing to fixing anchors: Through holes formed during fabrication only. • Tightening mechanical fasteners: To manufacturer's recommended torque figures. Do not

overtighten fasteners intended to permit differential movement. • Protective coverings: Remove only where necessary to facilitate installation and from

surfaces that will be inaccessible on completion.

980 INTERFACES• Flashings, closers, etc: Locate and form correctly to provide weathertight junctions with the

curtain walling.

982 IRONMONGERY• Assembly and fixing: Accurately, using fasteners with matching finish supplied by

ironmongery manufacturer. • Completion: Check, adjust and lubricate as necessary to ensure correct functioning.

985 MAINTENANCE• Maintenance manual: Incorporate details within the Building Manual in accordance with

CWCT 'Standard for systemised building envelopes' clause 7.6.1. - Materials certification and test reports to be included: within final Health and Safety File.

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Table of Contents

Title Page

3MortarsZ21

Z21 Mortars


CEMENT GAUGED MORTARS

110 CEMENT GAUGED MORTAR MIXES• Specification: Proportions and additional requirements for mortar materials are specified

elsewhere.

120 SAND FOR SITE MADE CEMENT GAUGED MASONRY MORTARS• Standard: To BS EN 13139. • Grading: 0/2 (FP or MP).

- Fines content where the proportion of sand in a mortar mix is specified as a range (e.g. 1:1: 5-6): Lower proportion of sand: Use category 3 fines. Higher proportion of sand: Use category 2 fines.

• Sand for facework mortar: Maintain consistent colour and texture. Obtain from one source.

131 READY-MIXED LIME:SAND FOR CEMENT GAUGED MASONRY MORTARS• Standard: To BS EN 998-2. • Lime: Nonhydraulic to BS EN 459-1.

- Type: CL 90S. • Pigments for coloured mortars: To BS EN 12878.

135 SITE MADE LIME:SAND FOR CEMENT GAUGED MASONRY MORTARS• Permitted use: Where a special colour is not required and in lieu of factory made ready-

mixed material. • Lime: Nonhydraulic to BS EN 459-1.

- Type: CL 90S. • Mixing: Thoroughly mix lime with sand, in the dry state. Add water and mix again. Allow to

stand, without drying out, for at least 16 hours before using.

160 CEMENTS FOR MORTARS• Cement: To BS EN 197-1 and CE marked.

- Types: Portland cement, CEM I. Portland limestone cement, CEM ll/A-L or CEM ll/A-LL.

Portland slag cement, CEM II/B-S. Portland fly ash cement, CEM II/B-V.

- Strength class: 32.5, 42.5 or 52.5. • White cement: To BS EN 197-1 and CE marked.

- Type: Portland cement, CEM I. - Strength class: 52.5.

• Sulfate resisting Portland cement: - Type: To BS EN 197-1 Sulfate resisting Portland cement, CEM I/SR and CE

marked. To BS EN 197-1 fly ash cement, CEM ll/B-V and CE marked.

- Strength class: 32.5, 42.5 or 52.5. • Masonry cement: To BS EN 413-1 and CE marked.

- Class: MC 12.5.

3

180 ADMIXTURES FOR SITE MADE CEMENT GAUGED MORTARS• Air entraining (plasticizing) admixtures: To BS EN 934-3 and compatible with other mortar

constituents. • Other admixtures: Submit proposals. • Prohibited admixtures: Calcium chloride, ethylene glycol and any admixture containing

calcium chloride.

190 RETARDED READY TO USE CEMENT GAUGED MORTAR• Standard: To BS EN 998-2. • Lime for cement:lime:sand mortars: Nonhydraulic to BS EN 459-1.

- Type: CL 90S. • Pigments for coloured mortars: To BS EN 12878. • Time and temperature limitations: Use within limits prescribed by mortar manufacturer.

- Retempering: Restore workability with water only within prescribed time limits.

200 STORAGE OF CEMENT GAUGED MORTAR MATERIALS• Sands and aggregates: Keep different types/ grades in separate stockpiles on hard, clean,

free-draining bases. • Factory made ready-mixed lime:sand/ ready to use retarded mortars: Keep in covered

containers to prevent drying out or wetting. • Bagged cement/ hydrated lime: Store off the ground in dry conditions.

210 MAKING CEMENT GAUGED MORTARS• Batching: By volume. Use clean and accurate gauge boxes or buckets.

- Mix proportions: Based on dry sand. Allow for bulking of damp sand. • Mixing: Mix materials thoroughly to uniform consistency, free from lumps.

- Mortars containing air entraining admixtures: Mix mechanically. Do not overmix. • Working time (maximum): Two hours at normal temperatures. • Contamination: Prevent intermixing with other materials.

LIME:SAND MORTARS

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Table of Contents

Title Page

3SealantsZ22

Z22 Sealants

To be read with Preliminaries/General conditions.

PRODUCTS

310 JOINTS GENERALLY• Primer, backing strip, bond breaker: Types recommended by sealant manufacturer.

EXECUTION

610 SUITABILITY OF JOINTS• Presealing checks:

- Joint dimensions: Within limits specified for the sealant. - Substrate quality: Surfaces regular, undamaged and stable.

• Joints not fit to receive sealant: Submit proposals for rectification.

620 PREPARING JOINTS• Surfaces to which sealant must adhere:

- Remove temporary coatings, tapes, loosely adhering material, dust, oil, grease, surface water and contaminants that may affect bond.

- Clean using materials and methods recommended by sealant manufacturer. • Vulnerable surfaces adjacent to joints: Mask to prevent staining or smearing with primer or

sealant. • Backing strip and/ or bond breaker installation: Insert into joint to correct depth, without

stretching or twisting, leaving no gaps. • Protection: Keep joints clean and protect from damage until sealant is applied.

630 APPLYING SEALANTS• Substrate: Dry (unless recommended otherwise) and unaffected by frost, ice or snow. • Environmental conditions: Do not dry or raise temperature of joints by heating. • Sealant application: Fill joints completely and neatly, ensuring firm adhesion to substrates. • Sealant profiles:

- Butt and lap joints: Slightly concave. - Fillet joints: Flat or slightly convex.

• Protection: Protect finished joints from contamination or damage until sealant has cured.

3

Dalton Park, Phase 2,

Murton, County Durham

Drainage Specification

May 2015

Dalton Park, Phase 2, Murton, County Durham, Drainage Specification

D/I/D/99334/10 – Issue 2

C O N T E N T S

R12 DRAINAGE BELOW GROUND ................................................................................. 1

GENERALLY ..................................................................................................................... 1 100 EXISTING DRAINS: .............................................................................................. 1 103 SEQUENCE OF WORK ........................................................................................ 1 106 IN SITU CONCRETE: ............................................................................................ 1 110 USE OF SPECIFICATION ..................................................................................... 1 110A WORKS TO ADOPTABLE DRAINAGE ................................................................. 1 110B WORKS TO HIGHWAY DRAINAGE IN ADOPTED HIGHWAYS ........................... 1 110C WORKS TO PRIVATE DRAINAGE ....................................................................... 1 115 ABANDONMENT OF EXISTING DRAINAGE: ....................................................... 2

TYPE(S) OF PIPELINE ...................................................................................................... 2 121 CLAY PIPELINES FOR FOUL AND SURFACE WATER SEWERS ...................... 2 126 CLAY PIPELINE FOR SURFACE WATER SEWERS ............................................ 2 131 CONCRETE PIPELINES FOR SURFACE WATER SEWERS ............................... 2 151 PLASTICS PIPELINES FOR SOIL AND RAIN WATER CONNECTIONS .............. 2 156 PLASTICS PIPELINES FOR FOUL AND SURFACE WATER SEWERS ............... 2 161 PERFORATED CLAY PIPELINES FOR INFILTRATION DRAINAGE ................... 3

EXCAVATING/BACKFILLING ............................................................................................ 3 205 EXCAVATED MATERIAL: ..................................................................................... 3 210 LOWER PART OF TRENCH: ................................................................................ 3 220 LOWER PART OF TRENCH: ................................................................................ 3 221A LOWER PART OF TRENCH: (Class S) ................................................................. 3 221B LOWER PART OF TRENCH: (Class T) ................................................................. 3 230 ASSUMED TYPE OF SUBSOIL: ........................................................................... 3 240 FORMATION FOR BEDS GENERALLY: ............................................................... 3 250 COMBINED TRENCHES: ..................................................................................... 4 260 TRENCH SUPPORTS: .......................................................................................... 4 270 BACKFILLING TO PIPELINES GENERALLY: ....................................................... 4 280 BACKFILLING UNDER ROADS AND PAVINGS: .................................................. 4 281 BACKFILLING OVER CONCRETE: ...................................................................... 4 290 TEMPORARY BRIDGES: ...................................................................................... 4 291 INFILTRATION TEST: ........................................................................................... 4 292 POROSITY OF GRANULAR MATERIAL: .............................................................. 5 293 INFILTRATION TRENCH ...................................................................................... 5 294 GEOTEXTILE TRENCH LINING: .......................................................................... 5 296 ROOT BARRIER ................................................................................................... 5

BEDDING/JOINTING ......................................................................................................... 6 310 INSTALLATION GENERALLY: .............................................................................. 6 370 CLASS S GRANULAR SURROUND: (for use with clay and concrete pipes) ......... 6 410 CLASS T FULL DEPTH GRANULAR SUPPORT: (for use with plastic pipes) ....... 6 430 CLASS W GRANULAR SURROUND: (for pipes under buildings with 300mm or more cover to underside of floor slab) ........................................................................................ 7 451 CLASS Y CONCRETE SURROUND FOR SHALLOW PIPES UNDER BUILDINGS: (for pipes under buildings with less than 300 mm cover to underside of floor slab) ......... 7 461 CLASS Z CONCRETE SURROUND: .................................................................... 7 470 TRENCHES LESS THAN ONE METRE FROM FOUNDATIONS: ......................... 8 480 TRENCHES MORE THAN ONE METRE FROM FOUNDATIONS: ....................... 8 485 TRENCHES UNDER FOUNDATIONS: ................................................................. 8


D/I/D/99334/10 – Issue 2

490 CROSSOVERS: .................................................................................................... 8 512 PIPELINES PASSING THROUGH STRUCTURES: .............................................. 8 520 BENDS AT BASE OF SOIL STACKS: ................................................................... 8 521 BENDS AT BASE OF RAINWATER PIPES: ......................................................... 9 525 DIRECT CONNECTION OF GROUND FLOOR WCS TO DRAINS: ...................... 9 530 RIGID BACKDROP PIPES (outside the manhole wall): ......................................... 9 570 FLEXIBLE COUPLINGS: ....................................................................................... 9

TERMINAL/ACCESS FITTINGS ........................................................................................ 9 610 GULLIES: .............................................................................................................. 9 612 LINEAR DRAINAGE CHANNELS: ......................................................................... 9 621 ABOVE GROUND CONNECTION TO BELOW GROUND DRAINAGE: .............. 10 650A RODDING POINTS FOR 100mm OR 150mm DIAMETER PIPES: ..................... 10 650B RODDING POINTS FOR DIAMETER PIPES GREATER THAN 150mm DIAMETER: ..................................................................................................... 10 670A SADDLE CONNECTORS: CLAY OR CONCRETE.............................................. 10 670B SADDLE CONNECTORS: PLASTIC ................................................................... 10 680 MANUFACTURE: ................................................................................................ 10 690 INSTALLATION OF FITTINGS: ........................................................................... 10 710 BRICK MANHOLES/INSPECTION CHAMBERS: ................................................ 10 711 BRICK CATCHPIT .............................................................................................. 11 721A CONCRETE MANHOLES UP TO 3 METRES DEEP: ......................................... 11 721B CONCRETE MANHOLES 3 TO 6 METRES DEEP ............................................. 11 722 CONCRETE CATCHPIT ..................................................................................... 11 730 CONCRETE INSPECTION CHAMBERS: ............................................................ 12 740 PLASTICS INSPECTION CHAMBERS: .............................................................. 12 751 GRANULAR FILL SOAKAWAY(S): ..................................................................... 12 756 PRECAST CONCRETE SOAKAWAY(S): ............................................................ 12 760 CONVENTIONAL CHANNEL(S), BRANCHES AND BENCHING: ....................... 13 781A OIL INTERCEPTOR FOR CAR PARKS: ............................................................. 13 781B OIL INTERCEPTOR FOR PETROL FILLING STATION FORECOURTS ............ 13 785A STORAGE TANK UNIT FOR SURFACE WATER ............................................... 14 811 CAST IRON ACCESS COVERS AND SEATING: ............................................... 14 821 STEEL ACCESS COVERS AND SEATING: ....................................................... 14 851 LIFTING KEYS: ................................................................................................... 14 861 CONNECTIONS TO SEWERS: ........................................................................... 15

CLEANING/TESTING/INSPECTION ................................................................................ 15 900 CLEANING: ......................................................................................................... 15 910 TESTING/INSPECTION GENERALLY: ............................................................... 15 930 TESTING OF ADOPTABLE AND LARGE PRIVATE SEWERS: .......................... 15 940 TESTING OF MANHOLES/INSPECTION CHAMBERS: ..................................... 15 950 WATER TESTING OF ANCILLARY COMPONENTS: ......................................... 15 970 CCTV INSPECTION OF PRIVATE PIPELINES: .................................................. 15 975 CCTV INSPECTION OF ADOPTABLE PIPELINES............................................. 16

F10 BRICK/BLOCK WALLING (only for below ground drainage works) ................... 17 TYPE(S) OF WALLING .................................................................................................... 17

380 ENGINEERING BRICKWORK: ........................................................................... 17 410 RELATED WORK ................................................................................................ 17 420 SITE STORAGE: ................................................................................................. 17 430 CONDITIONING OF BRICKS: ............................................................................. 17 460 MORTAR GROUPS: ........................................................................................... 17 470 TESTING - MORTAR STRENGTH: .................................................................... 18 480 TESTING - CEMENT CONTENT OF MORTAR: ................................................. 18 500 LAYING GENERALLY ......................................................................................... 18


D/I/D/99334/10 – Issue 2

511 OVERHAND LAYING .......................................................................................... 18 520 ACCURACY: ....................................................................................................... 18 521 ACCURACY: ....................................................................................................... 19 535 HEIGHT OF LIFTS: ............................................................................................. 19 560 COURSING: ........................................................................................................ 19 561 COURSING: ........................................................................................................ 19 580 FROGGED BRICKS: ........................................................................................... 19 635 JOINTING: .......................................................................................................... 20 645 UNEXPOSED JOINTS: ....................................................................................... 20 655 JOINTS IN MASONRY TO BE PLASTERED OR RENDERED: .......................... 20 665 POINTING: .......................................................................................................... 20 670 FIRE STOPPING: ................................................................................................ 20 671 FIRE STOPPING: ................................................................................................ 20 680 HOLES, RECESSES AND CHASES IN BRICK/BLOCK WALLING: .................... 20 690 ADVERSE WEATHER: ....................................................................................... 20

R13 LAND DRAINAGE ................................................................................................... 21

GENERALLY ................................................................................................................... 21 100 EXISTING DRAINS: ............................................................................................ 21 101 EXISTING SERVICES ......................................................................................... 21 106 IN SITU CONCRETE: .......................................................................................... 21 107 IN SITU CONCRETE ........................................................................................... 21

DRAINS ........................................................................................................................... 21 211 FILTER DRAIN WITH PLASTIC PIPE ................................................................. 21 350 LAYING PIPES .................................................................................................... 21 370 COLD WEATHER ............................................................................................... 22

EXCAVATING/BEDDINGS/SURROUND/BACKFILLING ................................................. 22 505 EXCAVATION: .................................................................................................... 22 515 EXISTING LIVE DRAINS: ................................................................................... 22 520 FORMATION FOR BEDS GENERALLY: ............................................................. 22 525 GRANULAR BEDS GENERALLY: ...................................................................... 22 541 GRANULAR BEDDINGS/SURROUND/BACKFILL: ............................................. 22 555 GRANULAR BACKFILLING GENERALLY TO DRAINS WITH PIPES: ................ 23

ANCILLARY CONSTRUCTIONS/WORK ......................................................................... 23 640 CAST IRON ACCESS COVERS AND SEATING: ............................................... 23 730 CONNECTIONS TO SEWERS/SURFACE WATER DRAINS: ............................ 23 735 CONNECTIONS TO SEWERS: ........................................................................... 23 800 CLEANING: ........................................................................................................ 23

APPENDIX Drainage Standard Details


D/I/D/99334/10 – Issue 2

Page 1

R12 DRAINAGE BELOW GROUND

GENERALLY

100 EXISTING DRAINS:

- Before starting work, check invert levels and positions of existing drains, sewers, inspection chambers and manholes against information shown on drawings and report any discrepancies to the Engineer.

- Adequately protect existing drains and maintain normal operation during construction.

103 SEQUENCE OF WORK

Refer to Contract Drawings for any particular sequence which may affect the construction or programming of the Works.

106 IN SITU CONCRETE:

Unless specified otherwise, in situ concrete for use in drainage below ground to be to BS 5328, either: - Designated mix GEN 3. - Standard mix ST 4 - or other mix appropriate to the sulphate exposure Different mixes may be used for different parts of the drainage work.

110 USE OF SPECIFICATION 110A WORKS TO ADOPTABLE DRAINAGE

The construction of sewers, manholes and associated works shall be in accordance with the Sewers for Adoption 7th Edition.

110B WORKS TO HIGHWAY DRAINAGE IN ADOPTED HIGHWAYS

The construction of sewers, manholes, gullies for adopted highway drainage shall be in accordance with Specification for Highway Works.

110C WORKS TO PRIVATE DRAINAGE

The construction of private sewers, manholes, gullies and associated works shall be in accordance with this specification.


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Page 2

115 ABANDONMENT OF EXISTING DRAINAGE:

Unless specified otherwise: - Linear channels and pipes less than 1m below finished ground level: Excavate

entire length and backfill with selected fill under landscape areas and with Type 1 subbase under hardstandings and buildings.

- Pipes greater than 1m below finished ground levels: Grout sewers by sealing lowest point and commencing grouting from the lowest point continue progressively up the pipe so as to fill all voids. Grouts to be Class G3 or G4 in accordance with Civil Engineering Specification for the Water Industry.

- Manholes and gullies: Break down to 1.5m below finished ground level. Backfill and compact any remaining void with selected fill in landscape areas and Type 1 subbase under hardstandings and buildings.

TYPE(S) OF PIPELINE 121 CLAY PIPELINES FOR FOUL AND SURFACE WATER SEWERS

- Pipes, bends and junctions: Vitrified clay to BS EN 295-1, with flexible joints, Kitemark certified. Strength: See Contract Drawings Size(s): See Contract Drawings

- Assumed type of subsoil: Various - Bedding class: Class S, Y and Z

126 CLAY PIPELINE FOR SURFACE WATER SEWERS

- Pipes, bends and junctions: Vitrified clay to BS EN 295 and BS 65, with flexible joints, Kitemark certified. Type: Surface Water, normal Strength class: See Contract Drawings Size(s): See Contract Drawings


131 CONCRETE PIPELINES FOR SURFACE WATER SEWERS

- Pipes, bends and junctions: Precast concrete to BS 5911:Part 100 or to BS5911-1 and BS EN 1916, with flexible joints, Kitemark certified. Strength class: See Contract Drawings Size(s): See Contract Drawings


151 PLASTICS PIPELINES FOR SOIL AND RAIN WATER CONNECTIONS

- Pipes, bends and junctions: PVC-U to BS EN 1401-1,CLASS SN4, with flexible joints, Kitemark certified. Size(s): See Contract Drawings

- Assumed type of subsoil: Various - Bedding class: Class T, Y and Z

156 PLASTICS PIPELINES FOR FOUL AND SURFACE WATER SEWERS

- Pipes: Concentric rib reinforced PVCU to WIS 4-35-01 issue 2 or BS EN 13476 with flexible joints,

Water Industry certified. - Assumed type of subsoil: Various - Bedding Class: Type T and Z


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Page 3

161 PERFORATED CLAY PIPELINES FOR INFILTRATION DRAINAGE

- Pipes: Perforated vitrified clay to BS EN 295 Part 5 flexible joints The following details and information are given on the Contract Drawings:-

Size Strength Assumed type of subsoil Bedding and surround

EXCAVATING/BACKFILLING 205 EXCAVATED MATERIAL:

Unless otherwise specified, set aside turf, topsoil, hardcore, etc. for use in reinstatement. 210 LOWER PART OF TRENCH:

From bottom up to 300 mm above crown of pipe the trench must have vertical sides and be of a width as small as practicable but not less than external diameter of pipe plus 300 mm or larger dimension if specified.

220 LOWER PART OF TRENCH:

Where the depth of cover exceeds the transition depth for the size of pipe, trench width up to 300 mm above crown of pipe to be not more than:

Nominal pipe size DN 100 150 225 300 375 450 525 600 Transition depth (m) 6.0 5.4 4.0 2.9 2.0 2.0 2.0 2.0 Maximum trench width (mm) 600 700 800 900 1050 1150 1200 1350

221A LOWER PART OF TRENCH: (Class S)

Where bedding class S is specified (see clause 370) trench width to be not more than the following, regardless of depth of cover:

Nominal pipe size (DN) 100 150 225 300 375 450 525 600 Maximum trench width (mm) 600 700 800 900 1050 1150 1200 1350

221B LOWER PART OF TRENCH: (Class T)

Where bedding Class T is specified (See Clause 410) there is no maximum trench width. Where trench sides are weak and unstable, or are in made ground the trench width to be equal to at least five diameters.

230 ASSUMED TYPE OF SUBSOIL:

Where the type of subsoil at the level of the crown of the pipe differs from that stated for the type of pipeline, obtain instructions before proceeding.

240 FORMATION FOR BEDS GENERALLY:

- Excavate to formation immediately before laying beds or pipes. - Remove mud, rock projections, boulders and hard spots and replace with

consolidated bedding material. - Harden local soft spots by tamping in bedding material. - Inform the Engineer in advance to give him reasonable opportunity to inspect

excavated formation for each section of the work.


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250 COMBINED TRENCHES:

Where one pipe is at a lower level than another adjacent pipe in a common trench: - A subtrench is permissible provided the soil of the step is stable and unlikely to

break away. - If a subtrench is not permissible, the whole trench must have a depth related to

the lower pipe, with increased thickness of bedding to the upper pipe as necessary.

- The lower pipe must be backfilled with compacted granular material to not less than half way up the higher pipe.

260 TRENCH SUPPORTS:

Remove trench supports and other obstacles sufficiently to permit compacted filling of all spaces.

270 BACKFILLING TO PIPELINES GENERALLY:

- Unless specified otherwise, backfill from top of specified surround or protective cushion with Selected Fill, compacted in layers not exceeding 300 mm thick. Do not use heavy compactors before there is 600 mm of material over pipes.

- Selected Fill: To be uniform readily compactable material, free from vegetable matter, building rubbish and frozen material, or material susceptible to spontaneous combustion, and excluding clay of liquid limit greater than 80 and/or plastic limit greater than 55 materials of excessively high moisture content. Clay lumps and stones retained or 75 mm and 37.5 mm sieves respectively shall be excluded from the fill material.

280 BACKFILLING UNDER ROADS AND PAVINGS:

Backfill from top of specified surround or protective cushion up to formation level with Granular Sub-base Material Type 1 to DTp Specification for Highway Works, Clause 803, laid and compacted in 150 mm layers.

281 BACKFILLING OVER CONCRETE:

Do not start backfilling within 24 hours of placing concrete. Do not use heavy compactors and prevent imposition of traffic loads within 72 hours of placing concrete.

290 TEMPORARY BRIDGES:

Provide temporary bridges over trenches as necessary to prevent construction traffic damaging pipes after backfilling.

291 INFILTRATION TEST:

- Prior to the construction of soakaways, infiltration trenches etc. verify the soil infiltration rate.

- Carry out soil infiltration test in accordance with BRE Digest 365 so that the soil infiltration rate can be calculated.

- Minimum plan area of the base of the soakage pit to be 1m2. - Dimensions, time and depth records to be reported to the Drainage Engineer to

allow the design assumptions to be verified at the particular location. Water level to be recorded to at least 10% effective depth.

- Where the soakage pit is backfilled with granular material determine the porosity of the material in accordance with Clause 296.


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292 POROSITY OF GRANULAR MATERIAL:

Determine the void ratio of granular material in accordance with BS 812:Part 2: 1995 section 6.3.5. Calculate the porosity of the material using the following formula:

Porosity = Void ratio

1 – void ratio

Report results to the Drainage Engineer to allow the design assumptions to be verified. 293 INFILTRATION TRENCH

The following details and information are given on the Contract Drawings:- Trench width Geotextile lining Pipe details Pipe bedding Granular material surround and backfill Backfill above trench

- Filter material below granular bed: Lay and mechanically compact in layers not exceeding 300mm thick, up to level of underside of granular pipe bed.

- Granular bed: Lay and compact to a minimum thickness of 100mm. Scoop out locally at couplings/sockets and lay pipes digging slightly into bed and resting uniformly on their barrels.

- Carefully pack material by hand around the sides of the pipe. - Surround and backfill in layers not exceeding 300mm thick, with mechanical

compaction from 300mm above crown of pipe, up to finished ground level or other specified level.

- Do not heap material in the trench before spreading. 294 GEOTEXTILE TRENCH LINING:

- Ensure that trench is trimmed carefully, removing any sharp stones or other projections.

- Line trench with geotextile, jointing as specified elsewhere, dress over the ground at the top of the trench sufficiently to secure temporarily with stones or small piles of aggregate.

- Do not restrain the geotextile from being pulled slightly downwards into the trench as the fill is placed. Take care to avoid damage to geotextile by vehicles, plant or by tipping material from excessive height.

- Wrap the free lengths of geotextile over the top of the aggregate, overlapping each other by 300mm and tucking the top layer down the trench side by 100mm.

296 ROOT BARRIER

- Where drainage trenches are within 6m of a tree (trunk), line the trench side nearest the tree with a root barrier.

- Unless stated otherwise in the contract, the root barrier is to extend 6m either side of the tree and to a depth of 2m below final ground level.

- The root barrier is to be a membrane that is impermeable to the spread of roots with a durability of at least 25 years.


D/I/D/99334/10 – Issue 2

Page 6

BEDDING/JOINTING 310 INSTALLATION GENERALLY:

- Obtain pipes and fittings for each pipeline from the same manufacturer unless otherwise specified. Joint differing pipes and fittings with adaptors recommended by pipe manufacturer.

- Lay pipes to true line and regular gradient on an even bed for the full length of the barrel with sockets (if any) facing up the gradient.

- Joint using recommended lubricants, leaving recommended gaps at ends of spigots to allow for movement.

- Adequately protect pipelines from damage and ingress of debris. Seal all exposed ends during construction.

- Arrange the work to minimise time between laying and testing. Backfill after successful testing.

370 CLASS S GRANULAR SURROUND: (for use with clay and concrete pipes)

- Lower part of trench width to be as clause 221. - Granular material: To BS EN 1610 annex B, Table B.15:

Pipe size (DN) Nominal single Graded size (mm) size (mm) 100 10 14 to 5 150 10 or 14 14 to 5 225 & 300 10, 14 or 20 20 to 5 or 14 to 5 375 to 525 10, 14 or 20 20 to 5 or 14 to 5 600 and over 14, 20 or 40 40 to 5, 20 to 5 or 14 to 5

- Lay and compact to a thickness not less than 100 mm over full width of trench.

Where trench bottom is uneven due to hard spots or other reason, increase depth by 100 mm. Scoop out locally at couplings/sockets and lay pipes digging slightly into bed and resting uniformly on their barrels. Adjust to line and gradient.

- After initial testing, lay and compact more granular material in 100 mm layers to 300 mm above crown of pipe.

410 CLASS T FULL DEPTH GRANULAR SUPPORT: (for use with plastic pipes)

- Granular material: To BS EN 1610 annex B, Table B.15:

Pipe size (DN) Nominal single Graded size (mm) size (mm) 100 & 150 10 Not permitted 225 & 300 10 or 20 20 to 5


Scoop out locally at couplings/sockets and lay pipes digging slightly into bed and resting uniformly on their barrels. Adjust to line and gradient.

- After initial testing, lay and compact by hand more granular material to 300mm above crown of pipe.

- See also Clause 221B


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Page 7

430 CLASS W GRANULAR SURROUND: (for pipes under buildings with 300mm or more

cover to underside of floor slab) - Excavate trench after hardcore has been laid and compacted. - Granular material: To BS EN 1610 annex B, Table B.15:

Pipe size (DN) Nominal single size (mm) 100 & 150 10 225 & 300 10 or 20


Scoop out locally at couplings/sockets and lay pipes digging slightly into bed and resting uniformly on their barrels. Adjust to line and gradient.

- After initial testing, lay and compact by hand more granular material to 300 mm above crown of pipe.

- Backfill with hardcore or granular material compacted in layers not exceeding 300 mm thick up to slab formation.

451 CLASS Y CONCRETE SURROUND FOR SHALLOW PIPES UNDER BUILDINGS: (for

pipes under buildings with less than 300 mm cover to underside of floor slab) - Where crown of pipe is less than 300 mm below underside of slab, encase pipe

in concrete of same mix as slab and cast integrally with the slab. Extend length of concrete surround to within 150 mm of next nearest flexible joint.

- Excavate trench after hardcore has been laid and compacted. - Lay concrete blinding, 25 mm thick over full width of trench and allow to set. - Lay pipes on blinding on folded wedges of compressible board not less than 100

mm above blinding. Anchor the pipeline or fill with water, if necessary, to prevent flotation.

461 CLASS Z CONCRETE SURROUND:

- Concrete mix as specified under 'Generally'. - Compressible board: Bitumen impregnated insulating board to BS 1142 Part 3 or

other equally compressible material. The thickness of compressible board

Pipe Size (DN) Thickness of board <450 18 450 - 1200 36

- Lay concrete blinding, 25 mm thick over full width of trench and allow to set. - Lay pipes on blinding on folded wedges of compressible board to give a

minimum of 150mm clearance under the pipe. Anchor the pipeline or fill with water, if necessary, to prevent flotation.

- Form vertical construction joints in surround at face of flexible pipe joints using 18 mm thick compressible board precut to profile of pipe. Fill any gap between spigot and socket with resilient material to prevent entry of concrete.

- Extend length of concrete surround to within 150 mm of the next nearest flexible joint.

- After initial testing, place and compact more concrete for full width of trench to encase pipe to 150 mm above crown or to other height as specified or shown on drawings.


D/I/D/99334/10 – Issue 2

Page 8

470 TRENCHES LESS THAN ONE METRE FROM FOUNDATIONS: Where bottom of trench is lower than bottom of foundation, use Class Z concrete surround as clause 461. Top of concrete to be not lower than bottom of foundation.

480 TRENCHES MORE THAN ONE METRE FROM FOUNDATIONS:

- Where bottom of drainage trench is below a critical level, (defined below) Class Z concrete surround as clause 461 is to be used, the top of the concrete being not lower than the critical level.

- For the purpose of this clause the critical level is D mm lower than level of -foundation bottom, D mm being equal to the horizontal distance of the near side of the trench from the foundation, minus 150 mm.

485 TRENCHES UNDER FOUNDATIONS:

- Concrete mix as specified under 'Generally'. - Lay concrete blinding, 25 mm thick over full width of trench and allow to set. - Lay pipes on blinding on folded wedges of compressible board to give a

minimum of 150mm clearance under the pipe. Anchor the pipeline or fill with water, if necessary, to prevent flotation.

- After initial testing, place and compact more concrete for full width of trench to encase pipe and fill trench up to the underside of foundation.

- Provide rocker pipes at either side as Clause 512. 490 CROSSOVERS:

Where two pipelines (other than plastics pipes) cross with less than 300 mm separation, surround each with Class Z concrete surround as clause 461 for not less than 1 m centred on the crossing point. Extend length of concrete surrounds as necessary to within 150 mm of next nearest flexible joints.

512 PIPELINES PASSING THROUGH STRUCTURES:

- Where pipelines must be cast in or fixed to structures (including manholes, catchpits and inspection chambers) provide short length or rocker pipes near each external face, with flexible joint at each end:

- Pipe size (DN) Distance to first joint from

structure (mm) Short length (mm)

100 & 150 150 600 225 225 600 675 to 750 750 - 1000 750 - 1000 825 and above 1250 1250

- Where pipelines need not be cast in or fixed to structures (e.g. walls to footings)

provide either: -short length or rocker pipes as specified above, or -openings in the structures to give 50 mm minimum clearance around the pipeline and closely fit a rigid sheet to each side of opening to prevent ingress of fill or vermin.

520 BENDS AT BASE OF SOIL STACKS:

- Unless specified otherwise, use a 90º nominal rest bend with a minimum radius of 200mm to centreline of the pipe.

- Invert of horizontal drain at base of stack to be not less than 450mm below centreline of lowest branch pipe.

- Stabilize bend(s) by bedding in concrete without impairing the flexibility of couplings.


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521 BENDS AT BASE OF RAINWATER PIPES:

- Unless specified otherwise, use a 90º nominal rest bend with a minimum radius of 200mm to centreline of the pipe.

- Stabilize bend(s) by bedding in concrete without impairing the flexibility of couplings.

525 DIRECT CONNECTION OF GROUND FLOOR WCS TO DRAINS:

- Drop from crown of WC trap to invert of drain must not exceed 1.3 m. - Horizontal distance from the drop to a ventilated drain must not exceed 6 m.

530 RIGID BACKDROP PIPES (outside the manhole wall):

Encase with not less than 150 mm of concrete as specified under 'Generally'. All excavation beneath the backdrop pipe and its surround must be replaced with concrete.

570 FLEXIBLE COUPLINGS:

- To BS EN 295-4, WIS 4-41-01, or Agrêment certified. - Flexible couplings to be from the same manufacturer as pipes and to be

recommended for use with the pipes being jointed. - Ensure that the ends of pipes to be joined are cleanly cut and square. - Ensure that outer surfaces of pipes to be joined are clean and smooth. Where

necessary, e.g. on concrete or iron pipes, smooth out mould lines and/or apply a cement grout over the sealing area.

TERMINAL/ACCESS FITTINGS 610 GULLIES:

- Gully: Trapped road gully minimum 450 mm dia x 750mm deep, precast concrete to BS 5911: Part 230 Kite mark certified or plastic with Agrement certificate.

- Grating and frame: Unless specified otherwise on the Contract Drawings, Ductile iron gully grating and frame to BS EN 124 Class C250 minimum waterway area 900cm2.

- In Situ Concrete Surround: Refer to Contract Drawings - Seating: Make up brickwork in BS 3921 Class B Engineering bricks laid in 1:3

cement : sand mortar. - Connections to be either flexible or rigid pipe with bedding and surround Class Z

as Clause 461. - Bed and haunch frame solidly in 1:3 cement: sand mortar over its whole area,

centrally over opening, top level and square with joints in surrounding finishes. Cut back haunching to 30 mm below top of surface material.

612 LINEAR DRAINAGE CHANNELS:

- Install in accordance with manufacturer’s instructions. - Connections to be either flexible or rigid pipe with bedding and surround Class Z

as Clause 461 The following details and information are given on the Contract Drawings:-

Channel type Grating Bed and surround Gullies Sump units


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Page 10

621 ABOVE GROUND CONNECTION TO BELOW GROUND DRAINAGE:

Connectors/adaptors to connect above ground drainage to below ground drainage specified by above ground designer.

650A RODDING POINTS FOR 100mm OR 150mm DIAMETER PIPES:

- Access cover: Proprietary aluminium rodding point with bolted sealing plate. The following details and information are given on the Contract Drawings:-

Seating Concrete surround General arrangement

650B RODDING POINTS FOR DIAMETER PIPES GREATER THAN 150mm DIAMETER:

- Seating as Clause 811 The following details and information are given on the Contract Drawings:-

Covers General arrangements Concrete surround

670A SADDLE CONNECTORS: CLAY OR CONCRETE

- To BS EN 295-4 or BS 65 as appropriate - Joint with clay or concrete pipes using 1:3 cement : sand mortar - Saddle and pipes surrounded in 150 mm thick GEN 3 concrete.

670B SADDLE CONNECTORS: PLASTIC

- To Agrêment Certified 680 MANUFACTURE:

Obtain each complete assembly of fittings, traps, etc., including appropriate couplings, from the same manufacturer, and check compatibility of components with each other and with the pipe system.

690 INSTALLATION OF FITTINGS:

- Set fittings square with and tightly jointed to adjacent construction as appropriate. If open to doubt obtain instructions.

- Bed and surround fittings, traps, etc. in concrete, 150 mm thick, mix as specified under 'Generally'.

- Permissible deviation in level of gully gratings to be +0 to -10mm, - Fit purpose made temporary caps over exposed openings in fittings and protect

from site traffic. MANHOLES/CHAMBERS/SOAKAWAYS/TANKS 710 BRICK MANHOLES/INSPECTION CHAMBERS:

- Drawing reference: Contract Drawings - In situ concrete bases: Refer to Contract Drawings. - Brickwork: Type F10/380 with frogs facing upwards - Steps: Galvanised mild steel or plastic encapsulated to BS EN 13101.

Bed in joints to all chambers over 900 mm deep at 300 mm vertical centres staggered 300 mm horizontally, with lowest step not more than 300 mm above benching and top step not more than 450 mm below top of cover.

- Channels, branches and benching: Conventional as Clause 760. - Cover slabs: Refer to Contract Drawings. - Access covers and seating: Ductile iron as Clause 811.


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711 BRICK CATCHPIT

- Drawing reference: Contract Drawings - In situ concrete bases: Refer to Contract Drawings. - Brickwork: Type F10/380 with frogs facing upwards - Steps: Galvanised mild steel or plastic encapsulated to BS EN 13101.

Bed in joints to all chambers over 900 mm deep at 300 mm vertical centres staggered 300 mm horizontally, with lowest step not more than 300 mm above benching and top step not more than 450 mm below top of cover.

- Cover slabs: Refer to Contract Drawings. - Access covers and seating: Ductile iron as Clause 811.

721A CONCRETE MANHOLES UP TO 3 METRES DEEP:

- Drawing reference: Contract Drawings - In situ concrete bases: Refer to Contract Drawings. - Manholes: To BS 1917:2002 or BS EN 5911-3 as appropriate, Kitemark certified,

all components from the same manufacturer. Cement type: Refer to Contract Drawings for any special requirements. Chamber rings: Size(s) refer to Contract Drawings Cover slabs: Standard and Estate Road type, openings to suit required access covers. Joints: Bituminous sealing strip as recommended by manhole manufacturer.

- Steps: Galvanised mild steel or plastic encapsulated to BS EN 13101. - In situ concrete surround: Refer to Contract Drawings. - Channels, branches and benching: Conventional as Clause 760. - Access covers and seating: Ductile iron as Clause 811. - Handrails: Refer to Contract Drawings. - Safety chains: Refer to Contract Drawings.

721B CONCRETE MANHOLES 3 TO 6 METRES DEEP


all components from the same manufacturer. Cement type: Refer to Contract Drawings for any special requirements. Chamber rings: Size(s) refer to Contract Drawings Cover slabs: Standard and Estate Road type, openings to suit required access covers. Joints: Bituminous sealing strip as recommended by manhole manufacturer.

- Ladders: Low carbon steel ladders for vertical fixing to relevant provisions of BS 4211 Class A, hot dipped galvanised after fabrication to BS EN ISO 3834-1. Refer to Contract Drawings.

- In situ concrete surround: Refer to Contract Drawings. - Channels, branches and benching: Conventional as Clause 760. - Access covers and seating: Ductile iron as Clause 811. - Handrails: Refer to Contract Drawings. - Safety chains: Refer to Contract Drawings.

722 CONCRETE CATCHPIT


all components from the same manufacturer. Cement type: Refer to Contract Drawings for any special requirements.


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Chamber rings: Size(s) refer to Contract Drawings Cover slabs: Standard and Estate Road type, openings to suit required access covers. Joints: Bituminous sealing strip as recommended by manhole manufacturer.

- Steps: Galvanised mild steel or plastic encapsulated to BS EN 13101. - In situ concrete surround: Refer to Contract Drawings. - Access covers and seating: Ductile iron as Clause 811.

730 CONCRETE INSPECTION CHAMBERS:

- Drawing Reference: Contract Drawings - In situ concrete bases thickness: : Refer to Contract Drawings - Inspection chambers: To BS 5911 : Part 2, Kitemark certified, all components

from the same manufacturer. - Cement type: Refer to Contract Drawings for any special requirements.

Chamber sections: Round Cover slab(s): Standard and Estate Road type, openings to suit required access covers.

- Joints: Bituminous sealing strip as recommended by chamber manufacturer. - In situ concrete surround: Refer to Contract Drawings. - Channels, branches and benching: Conventional as Clause 760 - Access covers and seating: Ductile iron as Clause 811

740 PLASTICS INSPECTION CHAMBERS:

- Manufacturer and reference: Agreement certified meeting requirements of current building regulation

- Access covers and seating: Refer to manhole schedule and Clause 811 or 821 as appropriate.

The following details and information are given on the Contract Drawings:- Bedding Surround Backfilling

751 GRANULAR FILL SOAKAWAY(S):

The following details and information are given on the Contract Drawings:- Geotextile Granular fill Vertical inspection pipes Horizontal distribution pipework Backfill above the soakaway

756 PRECAST CONCRETE SOAKAWAY(S):

- Drawing reference(s): Contract Drawings - Soakaways: To BS 1917:2002 or BS EN 5911-3 as appropriate Kitemark certified

all from the components from the same manufacturer. Cover slab(s): Standard and Estate Road type, openings to suit required access covers. Cement type: Refer to Contract Drawings for any special requirements

- Access covers and seating: Ductile iron as clause 811. - Steps: Galvanised mild steel or plastic encapsulated to BS EN 13101. - Ladders: Low carbon steel ladders for vertical fixing to relevant provisions of BS

4211 Class A, hot dipped galvanised after fabrication to BS EN ISO 3834-1. Refer to Contract Drawings.

- Joints: As recommended by chamber manufacturer. The following details and information are given on the Contract Drawings:-


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Insitu concrete footing/bases Geotextile Surround Insitu concrete surround Chamber rings

760 CONVENTIONAL CHANNEL(S), BRANCHES AND BENCHING:

- Bed main channel solid in 1:3 cement : sand mortar. Connect branches to channel, preferably at half pipe level, so that discharge flows smoothly in direction of main flow. Connect branches greater than nominal size 150 mm with the soffit level with that of the main drain. Where the connecting angle is more than 45º to direction of flow use three-quarter section channel bends.

- Use clips or ensure adequate mechanical key when bedding plastics channels on to mortar.

- Form benching in concrete, mix as specified under ‘Generally’, to rise vertically from top of main channel to a level not lower than soffit of outlet pipe, then slope upwards at 10% to walls. Within 3 hours float with coat of 1:3 cement : sand mortar and finish smooth with steel trowel.

781A OIL INTERCEPTOR FOR CAR PARKS: - Manufacturer and reference: Agrêment Certified, 10% bypass oil separators

complying with Class 1 of Environment Agency Guidelines PPG3 and BS EN 858-1. Material to be GRP. Details: Oil separator to include oil level alarm, and flow cut off valves on the outlet. Capacity: Refer to Contract drawings. Silt capacity: To be sized by manufacturer. To be either an integral part of the oil separator or a separate unit.

- Installation: In accordance with manufacturer’s recommendations - Bed: In accordance with manufacturer’s recommendations - Surround: In accordance with manufacturer’s recommendations - Access covers and seating: Ductile iron as Clause 811. The following details and information are given on the Contract Drawings:-

Capacity details Inlet pipe Outlet pipe Vent pipe Protective cover slab

781B OIL INTERCEPTOR FOR PETROL FILLING STATION FORECOURTS

- Manufacturer and reference: Agreement Certified, Full retention oil separators complying with Class 1 of Environment Agency Guidelines PPG3 and BS EN 858-1. Material to be GRP. Details: Oil separator to include automatic closure device, oil level alarm, and flow cut off valves on the outlet. Capacity: To be sized by manufacturer, minimum size 7600 litres Silt capacity: To be sized by manufacturer. To be either an integral part of the oil separator or a separate unit.

- Installation: In accordance with manufacturer’s recommendations - Bed: In accordance with manufacturer’s recommendations - Surround: In accordance with manufacturer’s recommendations - Access covers and seating: Ductile iron as Clause 811.


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The following details and information are given on the Contract Drawings:- Capacity details Inlet pipe Outlet pipe Vent pipe Protective cover slab

785A STORAGE TANK UNIT FOR SURFACE WATER - Manufacturer and reference: Agreement Certified - Installation: In accordance with manufacturers recommendations. - Bed: In accordance with manufacturers recommendations

Surround: In accordance with manufacturers recommendations The following details and information are given on the Contract Drawings:-

Capacity Inlet pipe Outlet pipe Flow control Protective cover slab

- Bed and Surround: In accordance with manufactures recommendations if concrete strength to be not less than mix as specified under ‘Generally’.

- Access cover and seating: Ductile iron as Clause 811. - Maintenance: maintenance regime to be approved by Client. - Independent Test Certificates and Test Report: as a minimum submit test

certificates and test report for manufacturers storage tank units for testing regime as defined in Appendix A2, CIRIA Report C680: Structural Design of Modular Geocellular Drainage Tanks.

- Tank Structural Design: submit tank design documentation. As a minimum refer to Chapter 4 of CIRIA Report C680: Structural Design of Modular Geocellular Drainage Tanks

811 CAST IRON ACCESS COVERS AND SEATING:

- Covers: Ductile iron to BS EN 124 Manufacturer and Type(s): Refer to Contract Drawings.

- Seating: Make up in engineering bricks to BS 3921, Class B, laid in 1:3 cement : sand mortar, or precast concrete cover frame units, Type 1 or Type 2 to suit cover shape.

- Bed and haunch frame solidly in 1:3 cement : sand mortar over its whole area, centrally over opening, top level and square with joints in surrounding finishes. Cut back top of haunching to 30 mm below top of surface material.

821 STEEL ACCESS COVERS AND SEATING:

- Covers: Steel to BS EN 124 where applicable or Agreement certified Manufacturer and Type(s): Refer to Contract Drawings.

- Seating: Make up in engineering bricks to BS 3921, Class B, laid in 1:3 cement : sand mortar, or precast concrete cover frame units, Type 1 or Type 2 to suit cover shape.

- Bed and haunch frame solidly in 1:3 cement : sand mortar over its whole area, centrally over opening, top level and square with joints in surrounding finishes. Cut back top of haunching to 30 mm below top of surface material.

851 LIFTING KEYS:

Provide suitable lifting keys for each type of access cover and hand over to Employer at Practical Completion.


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861 CONNECTIONS TO SEWERS: - Connect new pipework to existing adopted sewer(s) to the requirements of the

Sewerage Authority or its agent. - Before entering or breaking into an existing sewer the Contractor shall give

notice of his intention to do so to the owner of the sewer to which the connection is to be made.

CLEANING/TESTING/INSPECTION 900 CLEANING:

- Flush out the whole of the installation with water to remove all silt and debris before final testing, before CCTV inspection if specified and immediately before handover.

- Safely dispose of washings and any detritus without discharging them into sewers or watercourses.

910 TESTING/INSPECTION GENERALLY:

- Give the Engineer advance notice to allow the opportunity to attend all tests and inspections.

- Give the Statutory Authority appropriate notice to enable pipelines to be inspected and tested as required.

- Provide water, assistance and apparatus as required. - All lengths of drain, manholes and inspection chambers must pass the tests

specified. If permitted test loss or infiltration is exceeded, remedy defect(s) before retesting after an appropriate period.

925 TESTING OF GRAVITY DRAINS AND PRIVATE SEWERS UP TO DN 300:

- To ensure that pipelines are sound and properly installed, air test short lengths in accordance with BS 8301 clauses 25.6.3.1 and 25.6.3.2 and BS EN 1610, clauses 13.1 and 13.2 immediately after completion of bedding/surround.

- For final checking and statutory authority approval, water test to BS EN 1610, clauses 13.1 and 13.3 all lengths of pipeline from terminals and connections to manholes/chambers and between manholes/chambers.

930 TESTING OF ADOPTABLE AND LARGE PRIVATE SEWERS:

- Test sewers up to and including DN 750 size in accordance with Sewers for Adoption 5th Edition as follows: Initially, before backfilling, Finally, after backfilling,

940 TESTING OF MANHOLES/INSPECTION CHAMBERS:

Before backfilling test each manhole or chamber in accordance with BS 8301, paragraph 25.7 for: - Exfiltration: To BS EN 1610, clause 13.3 - Infiltration: No identifiable flow of water penetrating the chamber.

950 WATER TESTING OF ANCILLARY COMPONENTS:

Test petrol interceptor for exfiltration in accordance with BS 8301, paragraph 25.7.7. 970 CCTV INSPECTION OF PRIVATE PIPELINES:

- Carry out and record internal inspection of pipelines except building and gully connections with CCTV equipment.


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- Provide all necessary equipment, including suitable covered accommodation for viewing monitor screen, together with personnel experienced in operation of the equipment and interpretation of the results.

- Ensure that adequate intensity of illumination within pipe(s) is maintained. Provide for continual position recording, still photographs and stopping movement of the camera at any point requested by the Engineer.

- Provide copy of videotape recording to the Engineer. - Obtain instructions from the Engineer on remedying any defects which may be

revealed. 975 CCTV INSPECTION OF ADOPTABLE PIPELINES

- Permit the Sewerage Authority or its agent to provide equipment and personnel to carry out and record internal CCTV inspection of pipelines as described on the drawings and associated manholes after completion.

- Where pipelines are under highways, all construction except for laying of the wearing course must be completed before the inspection.

- Obtain instructions from the Engineer on remedying any defects which may be revealed.


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F10 BRICK/BLOCK WALLING (only for below ground drainage works) TYPE(S) OF WALLING 380 ENGINEERING BRICKWORK:

- Location: - Bricks: To BS 3921, Engineering Class 3 - Mortar: As section Z21.

Mix: Group 1 as clause 460 - Bond: English - Joints: Flush.

WORKMANSHIP GENERALLY 410 RELATED WORK

Related work is specified in the following sections: - F30 Accessories/Sundry items for brick/block/stone walling.

420 SITE STORAGE:

Store bricks/blocks in stable stacks clear of the ground and clearly identified by type, strength, grade, etc. Protect from adverse weather and keep clean and dry.

430 CONDITIONING OF BRICKS:

- Do not use clay bricks or calcium sillicate bricks when still warm from the manufacturing process.

- In dry warm weather wet the surfaces of very absorbent bricks slightly to reduce suction. Do not soak.

460 MORTAR GROUPS:

Where mortar is specified by group number, select any mortar in that group as set out below. Mix proportions are by volume. Use the same mortar throughout any one type of facing work. Group 1 Group 2 Group 3 Group 4

Cement: lime: sand 1:0-0.25:3 1:0.5:4-4.5 1:1:5-6 1:2:8-9

Cement: premixed lime and sand (proportion of lime and sand given in brackets)

1:3 (1:12)

1:4-4.5 (1:9)

1:5-6 (1:6)

1:8-9 (1:4.5)

Cement: sand & air entrainer

- 1:3-4 1:5-6 1:7-8

Masonry cement: sand - 1:2.5-3.5 1:4-5 1:5.5-6.5


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470 TESTING - MORTAR STRENGTH:

- Where instructed by the Engineer, have tests carried out to determine compressive strength of mortars listed below, in accordance with BS 5628:Part 1, Appendix A.1. Tests to be carried out by an independent laboratory approved by the Engineer.

- A provisional sum for testing is included elsewhere. - Preliminary tests: Specimens to be prepared at least six weeks before walling

commences, using materials from the sources from which the site will be supplied. Half of the specimens to be tested at seven days and the remainder at 28 days.

- Site tests: During construction, specimens to be prepared for every 150 sq m of each walling type, or for every storey of the building, whichever is the more frequent. Half of the specimens to be tested at seven days and the remainder at 28 days. Seven day test results to be not less than two thirds of strength specified for 28 days.

- Submit results to the Engineer immediately they are available. - Mean compressive strength of mortar at 28 days to be not less than the

following:

Mortar Group Preliminary tests Site tests (N/sq mm) (N/sq mm) 1.5 1 16.0 11.0 2 6.5 4.5 3 3.6 2.5 4 1.5 1.0

480 TESTING - CEMENT CONTENT OF MORTAR:

- When instructed by the Engineer, test mortar before use, to determine cement content.

- Carry out tests using the BREMORTEST method described in Building Research Establishment Information Paper 8/89, or other equivalent.

- A provisional sum for testing is included elsewhere. 500 LAYING GENERALLY

- Lay bricks/blocks on a full bed of mortar; do not furrow. Fill all cross joints and collar joints; do not tip and tail

- Build walls in stretching half lap bond when not specified otherwise. - Plumb perpends of facework every third or fifth cross joints along a course and

even out the joint widths in between. 511 OVERHAND LAYING

Overhand laying will be permitted subject to compliance with this specification and approval of samples and methods of carrying out the work.

520 ACCURACY:

Keep courses level and true to line. Accurately plumb all wall faces, angles and features. Unless otherwise specified, build brickwork/blockwork within the following permissible deviations.


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Dimension (mm)

Permissible Deviation

Position in plan of any point or specified fair face in relation to the nearest building grid line at the same level

+10

Length (Unless otherwise defined by adjacent construction): Up to 5m +15 5 to 10m +20 10 to 20m +25 Over 20m +30 Height: Up to 3m +15 3 to 6m +20 Over 6m +25 Level of bed joints: Up to 5m long +10 5 to 10m long +15 Over 10m long +25 Straightness in any 5m length +10 Vertically: In any 3m height +10 On o/a height of building exceeding 6m +20 Thickness: Overall thickness of walls or width of piers (subject to the following) +15 Difference in thickness of a wall or width of a pier at any two points 3m apart

+10

521 ACCURACY:

Notwithstanding Clause 520, comply with any critical dimensions given in the Preliminaries or on the drawings.

535 HEIGHT OF LIFTS:

- Rack back when raising quoins and other advance work. Do not use toothing - Raise no portion of the work more than 1.2m above another at any time - In facework, complete each lift in one period of operation. - Do not carry up any one leaf more than 1.5m in one day unless permitted by the

Engineer

560 COURSING: Gauge brick courses four to 300 mm including joints.

561 COURSING:

Arrange brick courses to line up with existing work where noted on the drawings. 580 FROGGED BRICKS:

Lay single frogged bricks with frog uppermost; lay double frogged bricks with deeper frog uppermost. In either case completely fill frogs with mortar.


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635 JOINTING: When not specified otherwise, finish joints neatly to the specified profile(s) as the work proceeds.

645 UNEXPOSED JOINTS:

As the work proceeds, strike off joints that will not be exposed to view in the finished work.

655 JOINTS IN MASONRY TO BE PLASTERED OR RENDERED:

Unless keyed units or metal lathing are used, rake out joints as work proceeds, to a depth of approximately 15mm.

665 POINTING:

Where specified, rake out joints to a depth of 12-15mm as the work proceeds. Subsequently, remove loose debris from the joints using a dry brush, dampen the work, and neatly point to the specified profile in a continuous operation from the top of the wall downwards as the scaffolding is taken down.

670 FIRE STOPPING:

Fill joints around joist ends built into cavity walls with mortar to seal cavities from interior of building.

671 FIRE STOPPING:

Ensure a tight fit between brickwork and cavity barriers to prevent fire and smoke penetration.

680 HOLES, RECESSES AND CHASES IN BRICK/BLOCK WALLING:

Comply with the relevant clause in section P31. 690 ADVERSE WEATHER: - Do not use frozen materials - Do not lay bricks/blocks when the air temperature is at or below 3ºC unless mortar has a

minimum temperature of 4ºC when laid and walling is protected. Do not lay mortar on frozen surfaces.

- Maintain temperature of the work above freezing until mortar has fully hardened. - Rake out and replace mortar damaged by frost. When instructed, rebuild damaged

work. - Protect newly erected walling against rain and snow by covering when precipitation

occurs, and at all times when the work is not proceeding.


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R13 LAND DRAINAGE

GENERALLY 100 EXISTING DRAINS AND WATERCOURSES:

• Before starting work, check invert levels and positions of existing drains, watercourses, sewers, catchpits, inspection chambers and manholes against information shown on drawings and report any discrepancies to the Engineer.

• Adequately protect existing drains to be retained and maintain normal operation during work.

101 EXISTING SERVICES:

• Check positions and levels of underground services before commencing excavation. Hand dig carefully within 3 m of any know or suspected service run.

106 IN SITU CONCRETE:

• Unless specified otherwise, in situ concrete for use in land drainage to be to

• BS 8500 either: - Designated mix GEN1, or - Standard mix ST2, or - an equivalent or better mix subject to approval.

• Different mixes may be used for different parts of the drainage work. 107 IN SITU CONCRETE:

• Unless specified otherwise, in situ concrete for use in land drainage to be to

• BS 8500 either: - Designated mix GEN1, or - an equivalent or better mix subject to approval.

• Different mixes may be used for different parts of the drainage work. DRAINS 211 FILTER DRAIN WITH PLASTIC PIPE:

• Drawing reference: see Contract Drawings.

• Trench size: Minimum 500mm deep by 150mm wide prior to topsoil being applied.

• Pipes: Corrugated perforated plastics to BS 4962, Kitemark certified. Size: See contract drawing

• Lay pipes with perforations down.

• Pipe bedding: to Clause 541.

• Pipe surround/backfill: to Clause 541.

• Backfill to: Contract Drawing 350 LAYING PIPES:

• Lay pipes in good weather conditions using methods suitable for the site conditions to prevent compaction, smearing, top ponding and damage to soil structure.

• Lay to line and gradient on a firm bed free from loose soil to give a free-draining installation without backfalls. Do not lay on soil backfill or in slurry.

• Form junctions between branches and mains with purpose made components.

• Carefully backfill with filter material ensuring that pipes are not damaged, distorted or displaced.

370 COLD WEATHER: Do not lay or backfill plastics pipes at temperatures lower than 5 degC.


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EXCAVATING/BEDDINGS/SURROUNDS/BACKFILL 505 EXCAVATION:

• Before commencing, set out and check that specified gradients and invert levels, particularly at outfalls, can be achieved. Inform the Engineer of any discrepancies. Form line of drain to the depth specified or shown on drawings, true to line and gradient. When bedding material is not specified, shape trench bottom to secure and bed the pipe.

• Excavate to a gradient of not less than 1 in 200 and not more than 1 in 80 unless specified otherwise.

• Excavated subsoil to be removed from site or to approved locations at end of each day and before pipelaying. Do not disperse on topsoiled areas.

515 EXISTING LIVE LAND DRAINS exposed by excavation:

• Mark the position(s) of the exposed drain(s).

• Carefully break back piped drains to an undisturbed section.

• Connect exposed drain to new work using pipes, purpose made junction pieces and fill as specified for new drain.

• Record the position of the exposed system showing connections and provide a copy to the Engineer.

520 FORMATION FOR BEDS GENERALLY:

• Excavate to formation immediately before laying beds or pipes.

• Remove mud, rock projections, boulders and hard spots and replace with consolidated bedding material.

• Harden local soft spots by tamping in bedding material.

• Inform Engineer in advance to give him reasonable opportunity to inspect excavated formation for each section of the work.

525 GRANULAR BEDS GENERALLY: Where granular materials are specified, lay and compact to a minimum thickness of 50 mm. Scoop out locally at couplings/sockets and lay pipes digging slightly into bed and resting uniformly on their barrels. 541 GRANULAR BEDDING/SURROUND/BACKFILL:

• Granular material, graded as follows by washing and sieving method to BS EN 933-1:

BS Sieve Size (mm) (µm)

Percentage by Mass Passing Sieve 63 37.5 20 10 5 1.18 600 150 Bedding (HA Type A) 100 85-100 50-100 50-100 35-90 15-50 5-35 0-5 Surround/Backfill 100 85-100 0-25 0-5 (HA Type B)

• Cover top of granular material with non woven geotextile. Joints lapped by 300 mm and extend geotextile minimum of 150 mm both side of trench.


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555 GRANULAR BACKFILLING GENERALLY TO DRAINS WITH PIPES:

• Surround and backfill in layers not exceeding 300 mm thick, with mechanical compaction from 300 mm above crown of pipe, up to finished ground level or other specified level.

• Do not heap material in the trench before spreading.

• Carefully pack material by hand around the sides of the pipe. ANCILLARY CONSTRUCTIONS/WORK

640 CAST IRON ACCESS COVERS AND SEATING:

• Covers: Grey iron or ductile iron to BS EN 124. Manufacturer and reference: Contractor choice Type(s): D400 Size(s): As scheduled Seating: Make-up in engineering bricks to BS 3921, Class B, laid in 1:3 cement:sand mortar, or precast concrete cover frame units, Type 1 or Type 2 to suit cover shape.

• Bed and haunch frame solidly in 1:3 cement:sand mortar over its whole area, centrally over opening, top level and square with joints in surrounding finishes. Cut back top of haunching to 30 mm below top of surface material.

700 OUTLET HEADWALLS

• Headwall: 225mm to 300mm minimum size limestone pitching on mortar, pre-cast concrete or engineering brickwork as section F10.

• Wingwalls: 225mm to 300mm minimum size limestone pitching on mortar.

• Construction to extend minimum 600mm below existing bed level.

• Design to be in accordance with and approved by the Environment Agency and Internal Drainage Board prior to installation.

• Pipe diameter: refer to contract drawings

• Invert level of outlet: Refer to contract drawings 710 INLET HEADWALLS

• Headwall: 225mm to 300mm minimum size limestone pitching on mortar, pre-cast concrete or engineering brickwork as section F10.

• Wingwalls: 225mm to 300mm minimum size limestone pitching on mortar.

• Pipe diameter: refer to contract drawings

• Invert level of outlet: Refer to contract drawings 730 CONNECTIONS TO SEWERS/SURFACE WATER DRAINS: Pipelines from last silt trap to sewer to be type R12/121, 126 or 131. 735 CONNECTIONS TO SEWERS: Connect to adopted sewer(s) to the requirements of the Sewerage Authority or its agent. 800 CLEANING:

• Thoroughly flush out the whole of the installation with clean water to remove silt and debris immediately before handover.

• Safely dispose of washings and any detritus without discharging them into sewers or watercourses.


D/I/D/99334/10 – Issue 2

APPENDIX

DRAINAGE STANDARD DETAILS


16 December 2013


Table of Contents

Title Page

3Metal profiled/ flat sheet cladding/ coveringH31

H31 Metal profiled/ flat sheet cladding/ covering


3

TYPES OF CLADDING/ COVERING SYSTEM

121 METAL KALZIP ACOUSTIC ROOF COVERING TO CINEMA• Support structure: Purlins on steel frame.

- Bearing width (minimum): 60. - Pitch: Refer to sections.

• External sheets: -Manufacturer and reference: Kalzip LtdHaydock LaneHaydockSt.HelensMerseysideWA11 9TYTel: 01942 295500www.kalzip.co.uk-Product Reference: Kalzip Aluminium Standing Seam 65/400-Material: Aluminium alloy BS EN AW 3004 (AlMn1Mg1)0.2% proof stress (Rp0.2) = 185 N/mm2 minimum.Ultimate tensile strength (Rm) = 220 N/mm2 minimum.-Thickness: 0.9 mm (nominal)Tolerance on thickness to be +0.05 mm and –0.025 mm. This is a class 2thickness tolerance as per BS EN 508-2:2000..

• Accessories: - Extruded Aluminium Alloy (EN AW-6063) Gable End Channel- Extruded Aluminium Alloy (EN AW-6061) Gable End Hooks- Extruded Aluminium Alloy (EN AW-6063) Tolerance Gable Clip Extrusion- Extruded Aluminium Alloy (EN AW-6063) Flat Bar 22mm x 6mm- Fabricated Aluminium Alloy (EN AW-3004),Ridge Closures (KZ 65/400)- Extruded Aluminium Alloy (EN AW-6063) Drip Angle 40mm x 20mm- Kalzip profile ridge fillers (KZ 65/400)- Kalzip profile eaves fillers (KZ 65/400)- Fabricated aluminium alloy (EN AW-3004) flashings – material and finish asper cladding sheets or as per project requirements.- Fabricated welded soaker units -. -End laps: No end laps – single length sheets. -Side laps: Kalzip sheets are mechanically seamed over head of support clips with a Kalzip �zipping� machine. -Spacers: Support clips, steel reinforced polyamide Kalzip E-clips type E.160 with S10 spacer -Sub-purlin: 30 mm deep top-hat profile sub-purlin x 1.6 mm thick galvanised steel to BS EN 10326, grade S280GD+Z with designation 275 coating, fastened to top-hat profile 'saddle' brackets – fabricated from minimum 1.6 mm thick galvanised steel to BS EN 10326, grade S280GD+Z with designation 275 coating. -Fasteners: 6.0 mm diameter stainless steel torque controlled fasteners, reference SDK3-S-377-6.0x45. Two fasteners per E.clip positioned diagonally opposite in the holes of the base of the clip. NB. The use of curved and/or long length Kalzip sheets (e.g. over 25 m) may require a greater number or different type of fastener, please consult with Kalzip technical services for project specific guidance.

• -Thermal insulation: Standard: To BS EN 13162 -Manufacturer: Kalzip Ltd -Product reference: Kalzip Insulation Quilt Type 1 manufactured with ECOSETM Technology. -Thickness: 180mm lightly compressed to overall thickness of 170mm to achieve maximum U-value of 0.20 W/m2K.

4

-Installation: Install and secure insulation as the roofing work proceeds ensuring continuity and that all edges are closed off and no gaps are left. Joints

• - Acoustic insulation -Standard: To BS EN 13162 -Manufacturer: Kalzip Ltd -Product reference: Kalzip Insulation Quilt Type 1 manufactured with ECOSETM Technology. -Thickness: 180mm lightly compressed to overall thickness of 170mm to achieve maximum U-value of 0.20 W/m2K. -Installation: Install and secure insulation as the roofing work proceeds ensuring continuity and that all edges are closed off and no gaps are left. Jointstic insulation -Product reference: Kalzip Acoustic Rockfibre Slab with ECOSETM Technology (White tissue faced) -Thickness: 30mm - 1 layer -Density: 100 kg/m3 -Installation: Install and secure insulation as the roofing work proceeds ensuring continuity and that all edges are closed off and no gaps are left. Keep insulation dry at all times. Acoustic slabs should be laid in over-lapping chequerboard pattern when installed in double layer application

• -Vapour control layer: -Manufacturer: Kalzip Ltd -Product reference: Kalzip VCL Clear -Material: Reinforced virgin polyethylene. -Vapour resistivity: 530 MNs/g. -Sealant tape: Kalzip VCL Sealant Tape. Butyl rubber tape with vapour resistivity of 900 MNs/g. -Size: 15 mm wide x 2 mm thick. -Continuity: Lay as work proceeds ensuring continuity. Lap side and end laps of vapour control layer and seal with sealant tape achieving full bond. Seal with sealant tape to perimeter and to pipes, ducts, structural members etc. which abut or pass through achieving a full bond. -Laps: Not less than 50 mm, seal with one row of sealant tape. Joints in vapour control layer to run in the same direction as the liner sheet. -Repairs: Carefully check for tears and punctures and seal them with lapped patch of same vapour control layer material and seal with sealing tape along all edges achieving full bond.-Lining sheet : - -Product reference: Kalzip Liner TR35/200S (trough perforated) -Material: Galvanised steel to liner clause BS EN 10326 -Nominal thickness: 0.7 mm -Finish/colour: Enamel white lining (for internal use). -End laps: Minimum 100 mm to coincide with purlin position. -Primary fasteners: 5.5 mm diameter carbon steel self drilling fasteners, reference SD-3-T15-5.5x25. One fastener to be installed in every other valley where Kalzip halter clips are not to be positioned. -Side lap stitching: Side laps to be stitched at maximum 400 mm centres with 4.8 mm diameter carbon steel self drilling stitching fasteners, reference SL2-T-4.8x20. -Side lap sealing: Not required.

• Aluminium Site Welding: Aluminium Site Welding (TIG) will be fully in accordance with Kalzip standard recommendations and industry guide to good practice by Kalzip approved welding contractors. Site Welding must be carried out fully in accordance with Approved Welding Procedure Specification ASW/TIG/001 Rev 'B' 1997 as defined in BS EN ISO 9606-2 for material gauges between 0.8mm-3.0mm thickness. Site welding operatives must be certified to BS EN ISO 9606-2 standard for material gauges between 0.8mm-3.0mm thickness. The weld test procedure shall be in accordance with BS EN ISO 15614-

5

The weld test procedure shall be in accordance with BS EN ISO 15614- 2:2005


165 CONTRACTOR'S DESIGN OF ROOF COVERING• Design responsibility: Determine depth and thickness of profile and type, sizes and number

of fixings. • Design standard: In accordance with BS 5427-1. • Structural and fire requirements:


satisfy specified performance criteria. • Functional requirements: As specified in this section. • Additional requirements: None. • Design and production information: to be submitted prior to construction. • Timing of submissions: Prior to construction.

175 PRODUCT SAMPLES• General: Before commencing detailed design, submit labelled samples of the following: Ma

in sheet.

176 FASTENER SAMPLES• General: During detailed design, submit labelled samples of each type of fastener.


185 PERFORMANCE COMPLIANCE• Verification: Before commencing fabrication, submit evidence based on laboratory testing

or computer modelling. - Verifying authority: UKAS or equal.

187 DEFLECTION OF METAL CLADDING/ COVERING• Roof covering: Maximum permitted deflection under distributed loads as a multiple of span

and due to: - Dead load: L/500. - Dead and imposed loads: L/200. - Dead and wind loads: L/90.

• Wall cladding: Maximum permitted deflection under distributed loads as a multiple of span and due to: - Dead and wind loads: L/120.

193 SOUND TRANSMITTANCE OF CLADDING/ COVERING SYSTEM - FREQUENCY SPECIFIC

• Location: Through roof. • Requirement: Measure to BS EN ISO 10140-2.

- Minimum sound reduction index (R): Refer to acoustic consultant requirements. For one third octave band centre frequency (Hz) of: Refer to acoustic consultant requirements.

198 WATER PENETRATION• Requirement: Under site exposure conditions, moisture must not penetrate onto internal

surfaces, or into cavities not designed to be wetted.

6

FIXING CLADDING/ COVERING

215 PAINTING STRUCTURE• Sequence: Paint outer surface of supporting structure before fixing cladding/ covering.

219 FASTENERS• Unspecified fasteners: Recommended for the purpose by the cladding/ covering

manufacturer.

221 FITTINGS AND ACCESSORIES• Unspecified fittings and accessories: Recommended for the purpose by the cladding/

covering manufacturer.

223 PREVENTION OF ELECTROLYTIC ACTION• Isolating tape: Type recommended by cladding/ covering manufacturer.

- Location: To contact surfaces of supports and sheets of dissimilar metals.

235 GUTTERS PARAPET• Manufacturer: Kalzip.

- Product reference: Contractor's choice. • Sizes: 500mm. • Material: Aluminium.

241 STEEL LINING• Manufacturer: Kalzip Ltd.

- Product reference: Kalzip Liner TR35/200S (trough perforated). • Finish/ Colour: Galvanised steel to liner clause BS EN 10326+*. • Primary sheet fasteners: 5.5 mm diameter carbon steel self drilling fasteners, reference

SD-3-T15-5.5x25. One fastener to be installed in every other valley whereKalzip halter clips are not to be positioned..

• End laps size (minimum): Minimum 100 mm to coincide with purlin position.. • End and side lap sealing: Double sided tape.

254 ACOUSTIC INSULATION• Manufacturer: Kalzip.

- Product reference: Acoustic Rockfibre Slab with ECOSETM Technology(White tissue faced).

• Recycled content: Not applicable.

261 VAPOUR CONTROL MEMBRANE• Material: Reinforced virgin polyethylene.

- Vapour resistance (minimum): 900 MNs/g.. • Continuity: No breaks and with the minimum of joints.

- Penetrations and abutments: Seal to vapour control membrane with tape. Achieve full bond.

- Laps: Not less than 150 mm, seal with tape. Achieve full bond. • Tape: Double sided sealant with vapour resistivity not less than the vapour control

membrane. - Size (width and thickness): Not less than 50 mm, seal with one row of sealant.

• Repairs and punctures: Seal with lapped patch of vapour control membrane and continuous band of sealant tape along edges.

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271 MINERAL WOOL THERMAL INSULATION• Standard: To BS EN 13162. • Manufacturer: Kalzip.

- Product reference: Kalzip Insulation Quilt Type 1manufactured with ECOSETM Technology.

• Thickness (minimum): 180mm lightly compressed to overall thickness of 170mm to achievemaximum U-value of 0.20 W/m2K.

• Recycled content: Submit proposals. • Installation: Continuous and not compressed between outer and lining sheets. Secure to

prevent future movement or dislodgement.

280 BREATHER MEMBRANE• Standard: To BS 4016, type 3. • Manufacturer: Submit proposals.

- Product reference: Submit proposals. • Continuity: No breaks. Minimise joints.

- Penetrations and abutments: Attach to breather membrane with tape. Achieve full bond. - Laps: Not less than 150 mm, bond with tape. Achieve full bond.

• Tape: As recommended by breather membrane manufacturer. • Repairs: Lapped patch of breather membrane material secured with continuous band of

tape on edges. • Junctions at flashings, sills, gutters etc. Overlap and allow free drainage to exterior.

300 PROFILE FILLERS GENERALLY• Material: Closed cell cross-linked polyethylene with a minimum density of 30 kg/m3.. • Manufacturer: Kalzip.

- Product references: Kalzip profiled filler. • Colour: Black. • Thickness: 30 mm. • Fixing method: Locate and wherever necessary to close off

corrugation cavities from the outside and inside of the building. Ensuring atight fit, leaving no gaps. - Requirement: To close cavities/ regulate air paths within the external envelope. Tight fit

with no unintended gaps.

305 FIRE RESISTING PROFILE FILLERS• Types: To accurately match sheet profile. • Fixing method: Adhesive recommended by profile filler manufacturer.

411 FIXING SHEETS GENERALLY• Kalzip sheets to be installed by mechanically seaming sheets to support clips

with Kalzip zipping machine. Kalzip sheets to be installed as per cladding manufacturer's instructions, British Board of Agrément Certification No. 98/3481 and Institute fur Bautechnic Zulassungbescheid N R 14.1-181. Only roofing contractors who are members of Kalzip Ltd' approved roofing contractors programme should be employed to install Kalzip roofing. Approved roofing contractor is to provide on site fully trained personnel at a minimum ratio of 1:3. All fully trained personnel to have obtained the General Operator's Certificate and Identification Card at Kalzip Ltd' training centre

460 ACCOMMODATION OF THERMAL MOVEMENT• Sheet type/ location: As recomended by manufacturer. • Method: sliding assembly.

8

480 FLASHINGS/ TRIMS GENERALLY• Lap joint treatment:

- Vertical and sloping flashings/ trims: End laps to be same as for adjacent sheeting. - Horizontal flashings/ trims: End laps to be 150 mm, sealed and where possible arranged

with laps away from prevailing wind. • Method of fixing: To structure in conjunction with adjacent sheeting. Otherwise to sheeting.

- Fasteners: to manufacturers details.

540 ABUTMENTS• Junctions with flashings: Weathertight and neatly dressed down.

550 SEALING LAPS ON EXTERNAL SHEETS• Sealant tape: Types recommended by sheet manufacturer.

- Position: Below fixing positions in straight unbroken lines, parallel to and slightly back from edge of sheet.

• Seal quality: Effective, continuous and not overcompressed. • End laps: Sealant tape positions:

- Single line tape: Immediately below line of fasteners. - Second line tape (where specified): Slightly set back from edge of external sheet.

• Side laps: Sealant tape positions: - Single line tape: Outside line of fasteners. - Second line tape (where specified): On other side of fasteners.

554 WATER VAPOUR SEALING AT LAPS AND PENETRATIONS IN METAL LININGS - SEALANT TAPE

• Sealant tape: double sided tape. - Position : Below fixing positions in straight unbroken lines, parallel to and slightly back

from edge of sheet. • Seal quality: Effective, continuous and not overcompressed.

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Table of Contents

Title Page

3Metal composite panel cladding/ coveringH43

H43 Metal composite panel cladding/ covering


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111 METAL COMPOSITE PANEL: [TO KFC ROOF] Support structure: Primary steel frame and purlins. - Bearing width (minimum): 50. - Pitch: Refer to drawings.

Manufacturer and reference: Kingspan Limited, roof cladding system for standard internal & external non-corrosive environments also Loss Prevention Certification Board certified to LPS 1181 Grade EXT-B. - Test results: LPS1181: 2003: Part 1: Issue 1, ceiling lining tests: Passed all requirements - Panels: Profile reference: KS1000 TD - Topdek Insulated single ply roofdeck. External facings: - Material: PVC membrane from one of the following manufacturers Trocal (delete as appropriate) - Thickness: 1.5 mm nominal. - Finish/Colour: As per membrane manufacturer internal facings: - Material: Hot-dip zinc coated steel to BS EN 10326: 2004. - Thickness: 0.63 mm - Finish/Colour: Bright White Polyester. Core insulation: EcoSafe LPCB certificated PIR formulation. Receiving BREEAM Credit (Pollution 4: Insulant GWP) 2006 credit. Panel thickness: 115mm overall (80mm core) - End laps: 60 mm. - Sealing end lap: 150 or 200mm wide (dependant upon membrane manufacturer) welded membrane strip at end lap. Welded as per membrane manufacturers

recommendations. - Sealing side lap: Acrylic double sided tape (Multibond Solutions Ltd. Tel: 01388 420200) applied to side lap prior to welding. Overlap of membrane welded to membrane of adjacent panel at side laps. Welded as per membrane manufacturers recommendations. - Fasteners: As determined by clause 220A. Number and location: - Primary fasteners: As determined by clause 194, but with a minimum of 1number per panel generally and 5 number per panel in end laps, at eaves and ridge areas, as recommended by cladding manufacturer. Intermediate fasteners covered with welded membrane patch. Size and welded as per membrane manufacturers recommendations. - Secondary fasteners (Side Lap Stitching): - From Outside - At the side lap fix sheets together with self coring fasteners evenly spaced at centres not exceeding 500mm. - From Inside - At the side lap fix sheets together with stitchers/rivets (delete as appropriate) evenly spaced at centres not exceeding 500mm. - Accessories: Profile fillers as clause 300A. - Thermal Transmittance (U Value) calculated using the method required by the Building Regulations Part L2A (England & Wales) and Building (Scotland)

Regulations Section 6: 0.25 W/m2K. - Manufacturers 25 year thermal guarantee required. - Air leakage rate of 5m3/hr/m2 at 50 Pa. - Other requirements: - Panel to be manufactured under Environmental Management System Certification ISO 14001:2004. - System installed by cladding manufacturers preferred contractor. - BBA certificate and manufacturers warranty and guarantee requuired.

4

113 METAL COMPOSITE PANEL: TO MORRISONS ROOF

Support structure: Primary steel frame and purlins. - Bearing width (minimum): 50. - Pitch: Refer to drawings.

Manufacturer and reference: Kingspan Limited, roof cladding system for standard internal & external non-corrosive environments also Loss Prevention Certification Board certified to LPS 1181 Grade EXT-B. - Test results: LPS1181: 2003: Part 1: Issue 1, ceiling lining tests: Passed all requirements - Panels: Profile reference: KS1000 TD - Topdek Insulated single ply roofdeck. External facings: - Material: PVC membrane Trocal. - Thickness: 1.5 mm nominal. - Finish/Colour: As per membrane manufacturer internal facings: - Material: Hot-dip zinc coated steel to BS EN 10326: 2004. - Thickness: 0.63 mm - Finish/Colour: Bright White Polyester. Core insulation: EcoSafe LPCB certificated PIR formulation. Receiving BREEAM Credit (Pollution 4: Insulant GWP) 2006 credit. Panel thickness: 115mm overall (80mm core) - End laps: 60 mm. - Sealing end lap: 150 or 200mm wide (dependant upon membrane manufacturer) welded membrane strip at end lap. Welded as per membrane manufacturers

recommendations. - Sealing side lap: Acrylic double sided tape (Multibond Solutions Ltd. Tel: 01388 420200) applied to side lap prior to welding. Overlap of membrane welded to membrane of adjacent panel at side laps. Welded as per membrane manufacturers recommendations. - Fasteners: As determined by clause 220A. Number and location: - Primary fasteners: As determined by clause 194, but with a minimum of 1number per panel generally and 5 number per panel in end laps, at eaves and ridge areas, as recommended by cladding manufacturer. Intermediate fasteners covered with welded membrane patch. Size and welded as per membrane manufacturers recommendations. - Secondary fasteners (Side Lap Stitching): - From Outside - At the side lap fix sheets together with self coring fasteners evenly spaced at centres not exceeding 500mm. - From Inside - At the side lap fix sheets together with stitchers/rivets (delete as appropriate) evenly spaced at centres not exceeding 500mm. - Accessories: Profile fillers as clause 300A. - Thermal Transmittance (U Value) calculated using the method required by the Building Regulations Part L2A (England & Wales) and Building (Scotland)

Regulations Section 6: 0.25 W/m2K. - Manufacturers 25 year thermal guarantee required. - Air leakage rate of 5m3/hr/m2 at 50 Pa. - Other requirements: - Panel to be manufactured under Environmental Management System Certification ISO 14001:2004. - System installed by cladding manufacturers preferred contractor. - BBA certificate and manufacturers warranty and guarantee required.

5

121 COMPOSITE PANELS MICRORIB TO CINEMA, KFC & MORRISONS • Manufacturer: Kingspan Insulated Panels.

- Web: www.kingspanpanels.com. - Email: [email protected]. - Product reference: KS1000 Optimo Micorib.

• External facing material: - Approval: LPCB. - Finish: Microrib. - Colour: Metallic Silver.

• Core insulation panel thickness: 100 mm. - BBA certified and manufacturers warranty and guarantee required.

122 COMPOSITE PANELS TO REAR OF MORRISONS • Manufacturer: Kingspan Insulated Panels.

- Web: www.kingspanpanels.com. - Email: [email protected]. - Product reference: KS1000 RW

• External facing material: Aluminium. - Approval: LPCB. - Finish: Kingspan XL200. - Colour: TBC from standard range.

• Internal facing material: Aluminium. - Finish: Food & Hygiene Safe.

• Colour: Bright White. • Core insulation panel thickness: 100 mm.

- BBA certified and manufacturers warranty and guarantee required.


165 CONTRACTOR'S DESIGN OF WALL CLADDING• Design responsibility: Determine types, sizes and locations of fixings. • Design standard: In accordance with BS 5427-1. • Structural and fire requirements:


satisfy specified performance criteria. • Functional requirements: As specified in this section. • Additional requirements: None. • Design and production information: Provide calaulation for review by Fairhurst prior to

manufacture. • Timing of submissions: Drawings and calculations to be submitted and approved prior to

manufacture.

172 THERMAL PERFORMANCE/ BRIDGING• Requirement: Complete thermal design of the cladding/ covering system to avoid

excessive thermal bridging. - Standard: MCRMA Technical Paper 14, MCRMA Technical Paper 17 with MCRMA

Technical Bulletin 14 and BRE Information Paper 1/06.

175 PRODUCT SAMPLES• General: Before commencing detailed design, submit labelled samples of the following:

All external materials for inspection by planning officer

176 FASTENER SAMPLES• General: During detailed design, submit labelled samples of each type of fastener.

6


187 DEFLECTION OF METAL CLADDING/ COVERING• Roof covering: Maximum permitted deflection under distributed loads as a multiple of span

and due to: - Dead load: L/500 . - Dead and imposed loads: L/200 . - Dead and wind loads: L/90 .

• Wall cladding: Maximum permitted deflection under distributed loads as a multiple of span and due to: - Dead and wind loads: L/120 .

191 SOUND TRANSMITTANCE OF CLADDING/ COVERING SYSTEM TO CINEMA• Location: Through external walls• Requirement: Refer to detaled drawings for sound reduction criteria.

194A FIXING ATTACHMENT Structuralinformationto be completed by Fairhurst- Determine the number and location of cladding fasteners recommended by the cladding manufacturer to resist wind loads calculated in accordance with BS 6399:Part 2 Standard Method and BS 5427:Part 1. - Calculate wind loads on roof and wall cladding appropriate to location, exposure, roof height, building shape and size in accordance with BS 6399:Part 2 Standard Method and BS 5427:Part 1.

Basic wind speed (Vb): ___ m/s Altitude factor (Sa): ___ Direction factor (Sd): ___ Seasonal factor (Ss): 1 Probability factor (Sp): 1 Terrain and building factor (Sb): ___ External and internal size effect factors (Ca): 1 External pressure coefficients (Cpe): As determined from BS 6399:Part 2, clauses

2.4 and 2.5. Internal pressure coefficients (Cpi): As determined from BS 6399:Part 2, clause 2.6. Dominant opening: _________

198 WATER PENETRATION• Requirement: Under site exposure conditions, moisture must not penetrate onto internal

surfaces, or into cavities not designed to be wetted.

200 AVOIDANCE OF INTERSTITIAL CONDENSATION• Requirement: Determine interstitial condensation risk of cladding system using the method

described in BS 5250 Appendix D. If necessary, provide a vapour control layer to ensure that damage and nuisance from interstitial condensation does not occur.

• Outdoor psychrometric conditions (notional): To BS 6229, table A.1 as follows: - Temperature: Winter -5°C, summer 18°C. - Relative humidity: Winter 90%, summer 65%. - Vapour pressure: Winter 0.36 kPa, summer 1.34 kPa.

• Indoor psychrometric conditions (notional): As follows: - Temperature: 20ºC. - Relative humidity: 55%. - Vapour pressure: 2.219 kPa.

• Calculated amount of winter interstitial condensate (maximum): • Winter interstitial condensate:

- Calculated amount (maximum): 0.35 kg/m². - Calculated annual net retention: Nil.

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202 AVOIDANCE OF SURFACE CONDENSATION• Requirement: Determine surface condensation risk of cladding system using the method

described in BS EN ISO 13788. If necessary, revise thermal insulation to provide satisfactory temperature factor (fmin). Ensure that damage and nuisance from surface condensation and does not occur.

FIXING CLADDING/ COVERING

215 PAINTING STRUCTURE• Sequence: Paint outer surface of supporting structure before fixing cladding/ covering.

218 PROTECTION OF FINISHED ROOF: Ensure that: - Finished roof areas are protected from damage by subsequent building operations. - Access points onto the roof and areas likely to be heavily trafficked during construction are protected to the approval of the CA. - Paint, solvent, bitumen, oils, fat, grease or other substance harmful to the membrane do not come into contact with the roof surface. Do not: - Store building materials on the roof - Permit the use of the roof as a working platform without adequate protection and the consent of the CA

219 FASTENERS• Unspecified fasteners: Recommended for the purpose by the cladding/ covering

manufacturer.

220 FASTENERS: - Primary fasteners: Self coring fasteners. Type(s), size(s) and drilling capacity: As recommended by fastener manufacturer to suit type and thickness of supports, and thickness of cladding panels. Screw material: Anti-corrosion coated carbon steel. - Secondary fasteners: Self coring fasteners. - Screw/washer material: As primary fasteners

221 FITTINGS AND ACCESSORIES• Unspecified fittings and accessories: Recommended for the purpose by the cladding/

covering manufacturer.

223 PREVENTION OF ELECTROLYTIC ACTION• Isolating tape: Type recommended by cladding/ covering manufacturer.

- Location: To contact surfaces of supports and sheets of dissimilar metals.

8

234 GUTTERS TO GENERALLY• Manufacturer: Contractor's choice.

- Product reference: Contractor's choice. • Sizes: Refer to drawings. • Material: Galvanized mild steel to BS EN 10346 grade DX51D+Z with zinc coating

designation 600. - Gauge/ Thickness: Two 3mm skins with 80 mm core. - External finish: Single ply membrane - Trocal or equal.

• Insulation: 80 mm thick aluminium foil faced rigid polyisocyanurate foam board. • Internal liner sheet: N/A. • Jointing method: As recommended by manufacturer. • Fixing method: As recommended by manufacture. • Accessories: Outlets, weir overflows and stop ends .

275 CONTINUITY THERMAL INSULATION• Material: Junctions between the roof panel system and walls / penetrations insulated with

PIR board insulation any gaps filled with fire rated gun applied canister urethane insulation.- Placement: Secure and continuous with cladding/ covering insulation. . - Manufacturer: Contractor's choice .

Product reference: Contractor's choice . • Recycled content: 25% (minimum) to BS EN ISO 14021 . • Installation: Secure and continuous with cladding/ covering insulation.

301 PROFILE FILLERS GENERALLY: Material: EPDM or Metallocene Polyolefin. Colour: Black. - Fixing: Seal the top, bottom and sides of each profile filler with a single line of non-setting gun-grade. - Locate where shown on drawings and wherever necessary to close off corrugation cavities from the inside and outside of the building. Ensure a tight fit and leave no gaps.

310 PURPOSE MADE COLD FORMED METAL ACCESSORIES• Material: Aluminium.

- Thickness/ gauge: 1.2 mm. - Finish/ Colour: Powdercoated 60 micrometres.

• Fasteners: - Type: To be confirmed by manufacturer. - Location: to junctions. - Fixing centres: 500mm.

410 FIXING PANELS AND SHEETS GENERALLY• Cut edges: Clean true. • Penetrations: Openings to minimum size necessary.

- Edge reinforcement: Angles . • Orientation: Exposed joints of side laps away from prevailing wind unless shown otherwise

on drawings. • Panel and sheet ends, laps and raking cut edges: Fully supported and with fixings at top of

lap. • Fasteners: Drill holes. Position at regular intervals in straight lines, centred on support

bearings. - Position of fasteners in oversized drilled holes: Central. - Fasteners torque: Sufficient to correctly compress washers.

• Debris: Remove dust and other foreign matter before finally fixing panel and sheets. • Completion: Check fixings to ensure watertightness and that panels and sheets are secure. • Cut edges: Paint to match face finish.

9

480 FLASHINGS/ TRIMS GENERALLY• Lap joint treatment:

- Vertical and sloping flashings/ trims: End laps to be same as for adjacent panels. - Horizontal flashings/ trims: End laps to be 150 mm, sealed and where possible arranged

with laps away from prevailing wind. • Method of fixing: To structure in conjunction with adjacent panels. Otherwise to panels.

- Fasteners: to manufacturers specification .

481 FLASHINGS/ TRIMS• Locations: Where shown on drawing . • Fasteners: Sealed aluminium rivets at 300 mm centres with sealing tape between .

540 ABUTMENTS• Junctions with flashings: Weathertight and neatly dressed down.

550 SEALING EXTERNAL LAPS• Sealant tape: Types recommended by panel/ sheet manufacturer. • Position of tape: Below fixing positions in straight unbroken lines, parallel to and slightly

back from edge of panel/ sheet. • Seal quality: Effective, continuous and not overcompressed. • End laps: Sealant tape positions:

- Single line tape: Immediately below line of fasteners. - Second line tape (where specified): Slightly set back from the edge of external sheet.

• Side laps: Sealant tape positions: - Single line tape: Outside line of fasteners. - Second line tape (where specified): On other side of fasteners.

555 SEALING AT LAPS AND PENETRATIONS IN SEMI-COMPOSITE PANEL LININGS• Aluminium foil tape: 75mm wide .

- Position: On inside face centrally and parallel to edge of oversheet in straight unbroken lines.

- Joints in tape: Minimum overlap of 50 mm. • Seal and adhesion quality: Effective and continuous.

580 PANEL IDENTIFICATION AND LABELLING- When the roofing and /or the wall cladding to this building is completed, a label identifying the composition of the insulated panels is to be fitted. - This label illustrates the type of Insulated panels fitted, to assist Insurers, Fire Officers, Owners and Occupiers identify the envelope composition. - The Kingspan Total Guarantee requires that the insulated panel identification label, which will have a specific project registration number, is installed in an agreed location. The project architect, cladding subcontractor or owner should locate or instruct the location of these labels in an appropriate and accessible location on the building.

850 MAINTENANCE WALKWAYAttachment: [Contact bonded - provide to the full perimeter and to rooflight/PV installation. refer to roofplan] .

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Table of Contents

Title Page

3Rainscreen claddingH92

H92 Rainscreen cladding

To be read with Preliminaries/General conditions.

TENDERING

10 INFORMATION TO BE PROVIDED WITH TENDER• Submit the following cladding particulars:

- Typical plan, section and elevation drawings at suitable scales. - Typical detailed drawings at large scales, including 1.5 interface details . - Technical information and certification demonstrating compliance with specification of

proposed incorporated products and finishes, including BBA certificate . - Certification, reports and calculations demonstrating compliance with specification of

proposed cladding. - Proposals for connections to and support from the primary support structure. - Proposals for primary support structure additional to that shown on preliminary design

drawings. - Schedule of builder's work, special provisions and special attendance by others. - Examples of standard documentation from which project quality plan will be prepared. - Preliminary fabrication and installation method statements and programme. - Proposals for replacing damaged or failed products. - Areas of non-compliance with specification.

3

TYPE(S) OF RAINSCREEN CLADDING

110 RAINSCREEN CLADDING TO KFC• Primary support structure: Steel frame with cladding rails with 12mm cementious board

with fully taped and sealed joints and 1000 gauge visqueen vapour check laid over with 40mm extruded polystyrene to rear face and 100 x 50mm treated softwood studs at 600mm c/c vertically with 100mm extruded polystyrene insulation between and provided with lapped breather membrane with 50 x 25mm treated sw battens to support rainscreen cladding.

• Rainscreen cladding system: - Type: Pressure equalized.

• - Requirement: Include products, fixings and interfaces necessary to complete the fabrication and installation. Performance criteria to comply with Design/ Performance Requirements and Testing subsections.

• Rainscreen panel: - Type: Flat board. - Material: Natural cedar or Rysysta wood composite. - Thickness: 145 x 22mm for cedar and extruded profile for Rysysta. - Finish/ Colour: Fine sawn for Cedar and natural for Rysysta. - Other panel requirements: 45 x 45mm vertical corner batten to all external and internal

corners. - Fixing system: Neatly countersunk fixings to Cedar; 3 number to each batten line. Refer

to drawings. - Fasteners: Stainless steel.

Number and location of fasteners: As determined by clause 342. - Joint type: open.

• Air gap: Not less than 25. • Secondary support/ framing system: Vertical battens.

- Material: sw. - Fasteners: stainless steel screws.

Number and location: As determined by clause 342. • Backing wall: Composite as details.

- Thermal insulation: as clause 776. - Breather membrane: as clause 785.

• Accessories: refer to drawings. • Incorporated components: vapour check as 780. • Other requirements: refer to drawings.

4

111 RAINSCREEN CLADDING TO MORRISONS• Primary support structure: Steel frame with cladding rails with 12mm cementious board

with fully taped and sealed joints and 1000 gauge visqueen vapour check laid over with 40mm extruded polystyrene to rear face and 100 x 50mm treated softwood studs at 600mm c/c vertically with 100mm extruded polystyrene insulation between and provided with lapped breather membrane with 50 x 25mm treated sw battens to support rainscreen cladding.

• Rainscreen cladding system: - Type: Pressure equalized.

• - Requirement: Include products, fixings and interfaces necessary to complete the fabrication and installation. Performance criteria to comply with Design/ Performance Requirements and Testing subsections.

• Rainscreen panel: - Type: Flat board. - Material: Marley Eternit or Rysysta wood composite. - Thickness: 1200x250mm module generally. - Finish/ Colour: Eternit Equitone or Rysysta natural. - Other panel requirements: None. - Fixing system: Face fixed with setting out plumb and lined. Refer to drawings. - Fasteners: Stainless steel.

Number and location of fasteners: As determined by clause 342. - Joint type: open.

• Air gap: Not less than 25. • Secondary support/ framing system: Vertical battens.

- Material: sw. - Fasteners: stainless steel screws.

Number and location: As determined by clause 342. • Backing wall: Composite as details.

- Thermal insulation: as clause 776. - Breather membrane: as clause 785.

• Accessories: refer to drawings. • Incorporated components: vapour check as 780. • Other requirements: refer to drawings.

112 RAINSCREEN CLADDING TO CINEMA UPPER LEVEL ABOVE MICRORIB• Primary support structure: Steel frame with cladding rails. • Rainscreen cladding system:

- Type: Drained and back ventilated. • - Requirement: Include products, fixings and interfaces necessary to complete the

fabrication and installation. Performance criteria to comply with Design/ Performance Requirements and Testing subsections.

• Rainscreen panel: Connect Wall System

" Manufacturer: Kingspan Benchmark. - Web: www.kingspanbenchmark.com. - Email: [email protected]. - Product reference: Connect Wall System. " Insulated panel: [100 mm]. - U-value: 0.20 W/m²K. - Type: [Cementitious Board].

- Thickness: [1250x250x8mm module generally]. - backing and fixings all as Benchmark standard

5

GENERAL REQUIREMENTS/PREPARATORY WORK

210 DESIGN• Rainscreen cladding system and associated features: Complete detailed design in

accordance with this specification and the preliminary design drawings and submit before commencement of fabrication.

• Related works: Coordinate in detailed design.

215 DESIGN PROPOSALS• Submission of alternative proposals: Preliminary design drawings indicate intent. Other

reasonable proposals will be considered.

220 SPECIFICATION• Compliance standards: The Centre for Window and Cladding Technology (CWCT)

'Standard for systemised building envelopes'. • Reference information: For the duration of the contract, keep available at the design office,

workshop and on site copies of: - The Centre for Window and Cladding Technology (CWCT) 'Standard for systemised

building envelopes'. - Publications invoked by the CWCT 'Standard for systemised building envelopes'.

230 INFORMATION TO BE PROVIDED DURING DETAILED DESIGN• Submit the following cladding particulars:

- A schedule of detailed drawings and dates for submission for comment. - A schedule of loads that will be transmitted from the rainscreen cladding to the structure. - Proposed fixing details and systems relevant to the structural design and construction

with methods of adjustment and tolerances. - A schedule of fabrication tolerances/ size tolerances. - A detailed testing programme in compliance with the Main Contract master programme. - A detailed fabrication and installation programme in compliance with the Main Contract

master programme. - Proposals to support outstanding applications for Building Regulation consents or

relaxations.

232 QUALITY PLAN• Requirement: Submit during detailed design. • Content: In accordance with BS EN ISO 9001 and including the following:

- Name of the quality manager. - Quality assessment procedures. - Inspection procedures to be adopted in checking the work. - Stages at which check lists will be used and samples of the lists. - List of work procedures on the correct use of materials or components, both off site and

on site. - List of product information with latest revisions. - Subcontractors involved in the work. - Subcontractors quality plans. - Storage, handling, transport and protection procedures. - Procedure for registering and reporting non compliances. - Maintenance procedures and calibration records. - Certification that completed work complies with specification. - Check list register to ensure all items have been inspected and non compliances

discharged.

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235 INFORMATION TO BE PROVIDED BEFORE COMMENCEMENT OF TESTING OR MANUFACTURE OF RAINSCREEN CLADDING SYSTEM

• Submit the following cladding particulars: - Detailed drawings to fully describe fabrication and installation. - Detailed calculations to prove compliance with design/ performance requirements. - Project specific fabrication, handling and installation method statements. - Certification for incorporated components manufactured by others confirming their

suitability for proposed locations in the rainscreen cladding. - Recommendations for spare parts for future repairs or replacements. - Recommendations for safe dismantling and recycling or disposal of products.

240 PRODUCT SAMPLES• General: Before commencing detailed design, submit labelled samples of: External finishes

.

250 SAMPLES OF FIXINGS• General: During detailed design, submit labelled samples of each type of fixing, together

with manufacturers' recommended torque figures.

DESIGN/PERFORMANCE REQUIREMENTS

310 CWCT 'STANDARD FOR SYSTEMISED BUILDING ENVELOPES'• General: Unless specified or agreed otherwise comply with:

Part 2 - Loads, fixings and movement. Part 3 - Air, water and wind resistance. Part 4 - Operable components, additional elements and means of access. Part 5 - Thermal, moisture and acoustic performance. Part 6 - Fire performance. Part 7 - Robustness, durability, tolerances and workmanship.

• Project performance requirements specified in this subsection: Read in conjunction with CWCT performance requirements.

342 CONTRACTOR'S DESIGN OF RAINSCREEN TO ALL AREAS• Design responsibility: Determine sizes and thickness of panels and types, sizes and

numbers of fixings. • Design standard: To CWCT 'Standard for systemised building envelopes'. • Structural and fire requirements:


satisfy specified performance criteria. • Functional requirements: As specified in this section. • Additional requirements: None.

371 APPEARANCE AND FIT• Requirement: Design rainscreen wall:

- To ensure position and alignment of all parts and features as shown on preliminary design drawings.

- To accommodate deviations in the primary support structure. • Primary support structure: Before commencing installation of rainscreen cladding system,

carry out survey sufficient to verify that required accuracy of erection can be achieved.

385 THERMAL MOVEMENT - SERVICE TEMPERATURE RANGES• Requirement: To CWCT 'Standard for systemised building envelopes' clause 2.7.2

amended and/ or with the addition of the following: none.

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390 AIR PERMEABILITY EXFILTRATION• Requirement: The maximum permissible air exfiltration rate through the building envelope

system must not exceed: 4 m³/(h.m²).

410 AIR PERMEABILITY• Permeability class to BS EN 12152: A4.

- Peak test pressure: 600 Pa.

420 WATER PENETRATION• Watertightness class to BS EN 12154: R7.

- Peak test pressure: 600 Pa. • Additional requirements: none.

425 WIND LOAD SERVICEABILITY AND SAFETY OF RAINSCREEN PANELS - CYCLIC WIND LOADING

• Method of determination: By calculation: Submit verification performance.

485 INTERNAL SURFACE SPREAD OF FLAME OF BACKING WALL TO BS 476-7• Class: 0 .

490 CAVITY FIRE BARRIERS TO BS 476-20• Requirement: To resist the passage of flame and smoke for not less than 30 min. integrity,

15 min, insulation .

495 DURABILITY• Relevant agents or degradation mechanisms: Adjacent to Marine environment. • Design life of the rainscreen cladding system: Not less than 25 years. • Secondary components: Submit details together with required maintenance regime,

replacement periods and methods of replacement.

TESTING

520 PROJECT TESTING (SITE)• Timing of testing: At an agreed stage during preliminary installation on site arrange for

testing of a section of rainscreen cladding in accordance with relevant clauses of this specification.

• Continuation of installation of general areas of rainscreen cladding: Not until site test results and reports showing compliance with this specification have been submitted.

535 TESTING AUTHORITY• Requirement: Project testing must be carried out by the rainscreen cladding manufacturer/

contractor and is to be witnessed and certified by: Bowmer & Kirkland and PM.

540 LARGE TEST SPECIMEN TO FULL BAY TO EACH BUILDING• Arrangement and overall dimensions: Full bay . • Features: Column casings and curtain wall interface . • Test sequences: As clause 685 .

672 SITE TESTING OF FIXINGS • Requirement: To CWCT 'Standard for systemised building envelope', 'Standard test

methods for building envelopes' Section 19. • Type of test: Ultimate load.

- Peak load: N/A. Load directions: N/A.

• Number and location of test fixings: 5%.

8

685 SITE HOSE TEST• Requirement: To CWCT 'Standard for systemised building envelopes', 'Standard test

methods for building envelopes' Section 9. - Joints to be tested: Full panel and all interface elements; column casing, curtain wall and

microrib.

PRODUCTS

710 ALUMINIUM ALLOY FRAMING SECTIONS• Standards: To BS EN 755 alloy EN AW-6063 and suitable for the specified finish. • Structural members: To comply with BS EN 1999-1-1, -3 and -4.

712 ALUMINIUM ALLOY SHEET• Standards: To BS EN 485, BS EN 515 and BS EN 573. • Alloy, temper and thickness: Suitable for the application and specified finish.

715 CARBON STEEL FRAMING SECTIONS/ REINFORCEMENT• Standards: To the relevant parts of BS 7668, BS EN 10029, BS EN 10025, and BS EN

10210. • Thickness: Suitable for the application, and for galvanizing or other protective coating.

717 CARBON STEEL SHEET• Standards: To the relevant parts of BS 1449-1, BS EN 10048, BS EN 10051, BS EN

10111, BS EN 10131, BS EN 10132, BS EN 10139, BS EN 10140, BS EN 10149, BS EN 10209, and BS EN 10268.

• Grade and thickness: Suitable for the application, and for galvanizing or other protective coating.

720 STAINLESS STEEL SHEET• Standards: To the relevant parts of BS EN 10029, BS EN 10048, BS EN 10051, BS EN

10095 and BS EN ISO 9445-1 and -2. • Grade: To BS EN 10088-2, austenitic 1.4301 (304) generally, 1.4301 (316) when used

externally or in severely corrosive environments. • Thickness: Suitable for the application.

725 TIMBER BATTENS• General: Regularized softwood free from decay, insect attack (except ambrosia beetle

damage) and with no knots wider than half the width of the section. • Preservative treatment: As section Z12 and Wood Protection Association (WPA)

Commodity Specification C8. - Type: Organic solvent.

• Moisture content at time of fixing (maximum): 19%.

730 MECHANICAL FIXINGS - MATERIAL REQUIREMENTS• Stainless steel: To BS EN ISO 3506 grade A2 generally, grade A4 when used in severely

corrosive environments. • Carbon steel: To BS 4190 and suitable for galvanizing or other protective coating. • Aluminium: To BS EN 755.

732 ADHESIVES• General: Not degradable by moisture or water vapour.

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735 FIXINGS AND FASTENERS• Type and use: Reviewed and approved by manufacturers. Submit confirmatory information

on request. • Dimensions: Not less than recommended by their manufacturers. • Adjustment capability: Sufficient in three dimensions to accommodate primary support

structure and rainscreen cladding fabrication/ installation tolerances.

760 GASKETS• Material:

- Noncellular rubber to BS 4255-1. - Cellular rubber to ASTM-C509.

• Durability: Resistant to oxidation, ozone and UV degradation.

770 GENERAL SEALANTS• Selection: In accordance with BS 6213 from:

- Silicone. - One part polysulfide. - Two part polysulfide. - One or two part polyurethane.

• Classification and requirements: To BS EN ISO 11600. • Reaction to contact products and finishes: Stable and compatible.

776 THERMAL INSULATION• Material: Extruded Insulation. • Manufacturer: Dow Building Solutions or equal.

- Product reference: Wallmate - Styrofoam 150-A. • Thickness: Not less than Refer to drawings. • Recycled content: Contractor's choice. • Fixing: Attached to the outer face or supported within the backing wall so as not to bulge,

sag, delaminate or detach during installation or in situ during the life of the rainscreen cladding.

780 VAPOUR CONTROL LAYER• Material: 1000 gauge polyethylene sheet.

- Minimum vapour resistance: 250 MN s/g. - Manufacturer: Submit proposals.

Product reference: Submit proposals. • Continuity: No breaks and with the minimum of joints.

- Penetrations and abutments: Seal to vapour control layer. If necessary, prime substrates to achieve full bond.

- Sheet laps: Not less than 150 mm, seal with tape. Prime substrates as necessary to achieve full bond.

• Sheet tape: Double sided sealant with vapour resistivity not less than the vapour control sheet. - Size (width and thickness): 15mm and 2mm min.

• Sheet repairs and punctures: Seal with lapped patch of vapour control membrane and continuous band of sealant tape along edges.

10

785 BREATHER MEMBRANE• Material: Tyvek. • Manufacturer: DuPont Tyvek - www.tyvek.co.uk.

- Product reference: Tyvek® UV FacadeTyvek with UV Façade Tape, Tyvek® Double Sided Acrylic Tape and Tyvek® Butyl Tape. .

• Continuity: No breaks. Minimize joints. - Penetrations and abutments: Attach to breather membrane with tape. Achieve full bond. - Laps: Not less than 150 mm, bond with tape. Achieve full bond.

• Tape: As recommended by breather membrane manufacturer. • Repairs: Lapped patch of breather membrane material secured with continuous band of

tape on edges. • Junctions at flashings, sills, gutters etc. Overlap and allow free drainage to exterior.

FINISHES

810 PROTECTIVE COATING OF CARBON STEEL FRAMING SECTIONS/ REINFORCEMENT

• Treatment: All surfaces to one of the following: - Hot dip galvanized to BS EN ISO 1461. - An appropriate equivalent coating to BS EN ISO 12944 and BS EN ISO 14713-1 and -2.

820 PROTECTIVE COATING OF CARBON STEEL MECHANICAL FIXINGS• Treatment: All surfaces to one of the following:

- Hot dip galvanized to BS EN ISO 1461. - Sherardized to BS 4921, class 1 coating thickness and passivated. - Zinc plated to BS EN ISO 2081, coating designation of FE//Zn//C for an iridescent

(yellow passivate) chromate conversion coating or FE//Zn//D for an opaque (olive green) chromate conversion coating.

830 POWDER COATING• Requirement: As section Z31.

FABRICATION AND INSTALLATION

910 GENERALLY• Electrolytic corrosion: Take necessary measures to prevent. • Identification of products: Mark or tag to facilitate identification during assembly, handling,

storage and installation. Do not mark surfaces visible in the complete installation.

912 METALWORK• Requirement: As section Z11, unless specified otherwise in this section.

915 TIMBER TREATMENT• Requirement: As section Z12, unless specified otherwise in this section. • Exposed cut and drilled surfaces: Treat with two flood coats of a solution recommended for

the purpose by main treatment solution manufacturer.

922 FIXINGS/ ADHESIVES APPLICATION• Requirement: As section Z20, unless specified otherwise in this section.

925 SEALANT APPLICATION• Requirement: As section Z22, unless specified otherwise in this section.

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930 ASSEMBLY• Location: Carry out as much assembly as possible in the workshop. • Joints: Other than movement joints and designed open joints, must be rigidly secured,

reinforced where necessary and fixed with hairline abutments. • Displacement of components in assembled units: Submit proposals for reassembly on site.

960 PRELIMINARY RAINSCREEN CLADDING INSTALLATION• Requirement: Complete an area of cladding as set out below for inspection and approval of

appearance. locations to be agreed .

970 RAINSCREEN CLADDING INSTALLATION• Tightening mechanical fasteners: To manufacturer's recommended torque figures. Do not

overtighten fasteners intended to permit differential movement. • Protective coverings: Remove only where necessary to facilitate installation and from

surfaces which will be inaccessible on completion.

980 INTERFACES• Installation: Locate flashings, closers etc. correctly and neatly overlap cladding to form a

weathertight junction.

985 DAMAGE• Repairs: Do not repair cladding without approval.

- Approval: Will not be given where the proposed repair will impair performance or appearance.

• Record of repairs: Prepare schedule or record on drawings for inclusion in the maintenance manual.

995 MAINTENANCE• Maintenance manual: Incorporate details within the Building Manual in accordance with

CWCT 'Standard for systemised building envelopes', clause 7.6.1. - Materials certification and test reports to be included: all.

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