CategoryWalls and rafts of earth retaining basements
PhaseAssessment
System
Agrément holder
Description
Scope (use)
Summary of Agrément
Major points ofassessment
Statement
Premcrete Maxiprufe Structural Waterproofing System
Premcrete T. : +44 (0) 2380 276166Seymour House E. : [email protected] Close W. : www.premcrete.comEastleighSO53 4AR UK
Type A waterproofing protection, providing for a continuous waterproofing system to the underside of the slabs andfoundations (Premcrete Maxiprufe 2000) and the outside of the walls (Premcrete Maxiprufe Plus) of reinforced concrete earth retaining structures, including tanking below ground, ranging from domestic basements to large civil engineering projects in line with BS 8102:20093. The system contains the main products Premcrete Maxiprufe 2000(layer of sodium bentonite between two geosynthetic layers) and Premcrete Maxiprufe Plus (polymer layer with alocking fleece on one side).
Continuous waterproofing system to the underside of the slabs and foundations and the outside of the walls of reinforced concrete earth retaining structures, ranging from domestic basements to large civil engineering projects.
This Agrément covers the following:• Conditions of use;• Sources, including relevant codes of practice and test reports;• Independently verified product characteristics;• Quality control and continuous surveillance;• Points of attention for the specifier and examples of details;• Installation procedure;• Compliance with Building Regulations;• Compliance with non-Regulatory Standards.
Water tightness aspects (sections 8.1 & 8.4)An essential property of the Premcrete Maxiprufe Structural Waterproofing System concerns the water tightness. The system will resist the passage of water and any other form of moisture or vapour infiltration from the ground.
Resistance to damage (section 8.5)The Premcrete Maxiprufe 2000 is resistant to damage due to the swelling capacity giving the system the ability of self-healing if damaged by puncturing or another form of indentation up to isolated damaged areas in the order of 100 mm2.
Behaviour in relation to fire (section 8.7)The waterproofing of reinforced concrete earth retaining structures using the Premcrete Maxiprufe Structural Waterproofing System can be designed to meet the UK requirements.
Durability (section 8.8)The fully protected Premcrete Maxiprufe Structural Waterproofing System will provide, under normal service conditions, a durable waterproof covering for the life of the building in which it is installed; the expected life time of the building itself should be at least 60 years.
It is the opinion of the Kiwa BDA Expert Centre Building Envelope (ECBE) that the Premcrete Maxiprufe StructuralWaterproofing System of FIS is fit for its intended use, provided it is specified, installed and maintained in accordancewith this Agrément.
Professor Nico Hendriks, MSc Chris van der Meijden, MSc
ECBE BDA Group Chairman Technical Director
Version01
Kiwa BDA Expert Centre Building Envelope (ECBE)BDA Group Kiwa Ltd.Avelingen West 33 Unit 5 Prime Park WayP.O. Box 389 Prime Enterprise Park 4200 AJ Gorinchem Derby, DE1 3QB The Netherlands United Kingdom +31 (0)183 66 96 90 +44 (0)7718 57 05 64
1 ApplicationThe Premcrete Maxiprufe Structural Waterproofing System, hereafter ‘the System’, can be applied to theoutside of the slabs and foundations and walls that are constructed of cast insitu reinforced concrete toprovide grades 1, 2 and 3 waterproofing protection as defined in BS 81023. The System and its components shall not remain permanently exposed.
2 AssessmentKiwa BDA Testing*) have assessed the System according to BS 81023 and BS EN 134914; a summary ofthe test results is given in section 3 of this Agrément. Kiwa BDA Expert Centre Building Envelope (ECBE)has assessed all aspects related to the specifications, installation procedure and Building Regulations incombination with the Declarations of Performance (DoP’s)22,23 and Technical Assessment and site visits.Also NHBC Standards2 have been taken into account. Factory Production Control has been assessed byKiwa N.V., Technical Assessment Body, represented in the UK by Kiwa Ltd.24
*) CPR Notified Laboratory No. NB 1640; Testing Accreditation RvA L 447 (acknowledged by UKAS)
3 Installation The System shall only be installed by contractors whose employees have been trained and approved by theAgrément holder. The System shall be installed strictly in accordance with the instructions of the Agrémentholder and the requirements of this Agrément.
4 Geographical scopeThe validity of this document is limited to England, Wales, Scotland and Northern Ireland, with due regardto section 11 Building Regulations.
5 ValidityThe purpose of this BDA Agrément® is to provide for well-founded confidence to apply the Premcrete Maxiprufe Structural Waterproofing System in the described applications and according to approved specifications. According to the BDA Guideline - BDA Agrément®1 the validity of this document is thereforethree years after the official date of issue, published on www.kiwa.co.uk/bda. After this the validity can beextended every three years following a positive review. This Agrément is not valid in those cases whereECBE identifies that the design of a waterproofing system does not comply with article 8.2. Permitted constructions.
1 BDA Guideline - BDA Agrément®, 2015-06-302 NHBC Standards 2016 Chapter 2.1 The Standards and Technical Requirements and Part 5 Substructure,
ground floors, drainage and basements, Chapters 5.1 Substructure and ground bearing floors and 5.4 Waterproofing of basements and other below ground structures
3 BS 8102:2009 Code of practice for protection of below ground structures against water from the ground4 BS EN 13491:2013 Geosynthetic barriers. Characteristics required for use as a fluid barrier in the
construction of tunnels and associated underground structures5 BS EN 13967:2012 Flexible sheets for waterproofing. Plastic and rubber damp proof sheets including
plastic and rubber basement tanking sheet. Definitions and characteristics6 ASTM D 5887-09 Standard Test Method for Measurement of Index Flux Through Saturated Geosynthetic
Clay Liner Specimens Using a Flexible Wall Permeameter7 BS EN 14196:2016 Geosynthetics. Test methods for measuring mass per unit area of clay geosynthetic
barriers8 BS EN 16416:2013 Geosynthetic clay barriers. Determination of water flux index. Flexible wall
permeameter method at constant head9 BS EN 1931:2000 Flexible sheets for waterproofing. Bitumen, plastic and rubber sheets for roof
waterproofing. Determination of water vapour transmission properties10 BS EN ISO 10319:2015 Geosynthetics. Wide-width tensile test11 ASTM E154/E154M-08a:2013 Standard Test Methods for Water Vapor Retarders Used in Contact with
Earth Under Concrete Slabs, on Walls, or as Ground Cover 12 European Directive M.O.A.T. 64:2001, § 4.3.3 - Resistance to peel from the support, method B
(peel strength at an angle of 90°)13 BS EN 12311-2:2013 Flexible sheets for waterproofing. Determination of tensile properties. Plastic and
rubber sheets for roof waterproofing14 BS EN 12310-1:2000 Flexible sheets for waterproofing. Determination of resistance to tearing (nail shank)15 BS EN 12730:2015 Flexible sheets for waterproofing. Bitumen, plastic and rubber sheets for roof
waterproofing. Determination of resistance to static loading16 BS EN 12317-2:2010 Flexible sheets for waterproofing. Determination of shear resistance of joints.
Plastic and rubber sheets for roof waterproofing17 BS EN 13501-1:2007+A1:2009 Fire classification of construction products and building elements.
Classification using test data from reaction to fire tests18 BS EN 1847:2009 Flexible sheets for waterproofing. Plastics and rubber sheets for roof waterproofing.
Methods for exposure to liquid chemicals, including water
Factory Visit Report - Premcrete Maxiprufe Plus, Kiwa Ltd., 2016-05-3125 Technical Data Sheet Premcrete Maxiprufe 2000, 2016-07-0126 Technical Data Sheet Premcrete Maxiprufe Plus, 2016-06-1427 Technical Data Sheet Twinseal Compound, Premcrete, 2015-12-1828 Technical Data Sheet Twinseal Soft washer fixing, Premcrete, 2016-02-2529 Technical Data Sheet Hydroseal FX, Premcrete, 2013-10-0130 Technical Data Sheet Hydrostop BR, Premcrete, 2013-10-0131 Technical Data Sheet Hydrostop WSM, Premcrete, 2013-10-0132 Technical Data Sheet Hydrobar PVC, Premcrete, 2013-10-0133 Installation Method statement-Premcrete Maxiprufe Premcrete Maxiprufe Structural Waterproofing System,
2016-07-01 34 BDA Inspection Report 15-C-0865/3 Below ground structure wall & beneath slab mock-up, 2016-07-2535 BS EN 1992-1-1:2004+A1:2014 Eurocode 2: Design of concrete structures. General rules and rules for
buildings36 UK National Annex to Eurocode 2. Design of concrete structures. General rules and rules for buildings35
37 Material Safety Data Sheets for Premcrete Maxiprufe 2000 & Plus components of the System38 Premcrete Maxiprufe Structural Waterproofing System - Details39 BS EN 1991-1-1:2002 - Eurocode 1: Actions on structures - Part 1-1: General actions - Densities,
self-weight, imposed loads for buildings40 UK National Annex to BS EN 1991-1-1:2002
Remark: in the text of this document reference is made to some of these sources by adding the relevant sourcenumber in superscript
**) The critical functions which apply to this section and section 4 are weatherproofing, fire resistance and durability, as mentioned in R3(a) of the NHBC Standards2
CE-markingThe Agrément holder has taken the responsibility of CE marking the Premcrete Maxiprufe 2000 and PremcreteMaxiprufe Plus components of the System in accordance with BS EN 134914 and BS EN 139675 respectivelyand Regulation (EU) No 305/2011 - Article 7. An asterisk (*) indicates that the relevant data shown in this section is given in the manufacturer’s Declarations of Performance (DoP)22,23.
Premcrete Maxiprufe 200025
Premcrete Maxiprufe 2000 is a Type A waterproofing barrier2 of high strength polypropylene geotextiles encapsulating a granular sodium bentonite layer; the non-woven carrier at the underside of the membrane andthe woven cover are needle-punched together; the outer layer of the non-woven geotextile is impregnated withan additional layer of bentonite; the membrane will swell on contact with moisture and shall be confined to ensure a watertight seal is achieved in service.• identification properties20
- nominal dimensions (rolls) : 1.0 m x 5.0 m- min. thickness : 6.5 mm- min. mass : 5.1 kg•m-2
- colour : grey• water permeability ASTM D 5887-096,22 : 5.0x10-08* m3•m-2•s-1
• tensile strength BS EN ISO 1031910,22 MD : 15 (-5)* kN•m-1
CMD : 15 (-5)* kN•m-1
• static puncture resistance ASTM E154/E154M-08a11 : 0.8 (-0.5)* kN• resistance according to BS EN 134914 (Appendix B)*
- the product has to be protected from humidity and water- the product is stable for at least 25 years in natural soils with 4 < ph < 9 and soil temperatures < 25 °C
• resistance to peel from concrete support M.O.A.T. 6412,20 : 6.8 N•(50 mm)-1
• resistance to static loading BS EN 1273015,20
- method B: concrete support, loading with 20 kg : 3 x no leakage• resistance to impact BS EN 1269123 : no leakage*• shear resistance of joints BS EN 12317-216,20 : 87 N•(50 mm)-1
• classification of reaction to fire BS EN 13501-1 : class E • resistance to exposure to milk of lime BS EN 184718,20
- decrease in mass after 28 days at 23 °Cexposure to Ca(OH)2 : 23 %
- water tightness at 250 kPa (2.5 bar)after Ca(OH)2 exposure BS EN 1928 B19,20 : passed
• water vapour resistance factor (µ-value) BS EN 19319,20 : 20300 (-)
Twinseal Compound27
- Twinseal Compound is a trowel-grade, sodium bentonite based compound, designed for a variety of surfacepreparation and waterproofing detail work, for use with Premcrete waterproof membranes;
- the product, being a bentonite-based material, swells upon contact with water to seal against water ingress; - with the consistency of thick grease the product is easy to apply and bonds to most concrete and masonrysubstrates materials.
Twinseal Soft washer fixings28
- Twinseal Soft washer fixings are used to fix waterproofing membranes to concrete in vertical applications;- typical properties:• carbon steel shank - HRC 56.5• zinc coating - 5 - 20 µm• dimensions - 45 mm x 4 mm
Hydroseal FX29
- Hydroseal FX is a two component thixotropic, cementitious, modified polymer waterproof coating with highadhesion to both concrete and steel;
- the product forms a hard, highly alkaline coating with a degree of elasticity which protects the concrete, or other substrates, from the effects of aggressive acid, gases, moisture and chlorides and has an enhancedchemical resistance;
- the product is particularly suited for the protection of concrete in sulphate contaminated ground conditions.
Hydrostop BR30
- Hydrostop BR is a swellable hydrophilic bentonite water-stop, made from a combination of synthetic rubberand sodium bentonite clay;
- when installed in a confined joint the product will swell upon contact with water to ensure a waterproof joint;- typical properties:• colour - black• density - 1,580 kg•m-3
• installation temperature - -15/+60 °C• dimensions - 25 mm x 20 mm
4 Assessed ancillaryitems and associatedproductsused forcritical functions**)
**) see section 3 (continued)
5 Factory Production Control (FPC)
6 Quality ManagementSystem
7 Continuoussurveillance
8 Points of attention for the specifier
Hydrostop WSM31
- Hydrostop WSM is a hydrophilic, gun-grade sealant;- the hydrophilic properties of Hydrostop WSM display good consistency in swell rate during repeated wet/drycycling;
- expansion of the product on contact with water creates a positive pressure against the faces of the concretejoint, thus preventing the passage of water.
Hydrobar PVC32
- Hydrobar PVC represents a range of high performance water-stops extruded from PVC material designed toprevent the passage of water at both construction and expansion joints in watertight structures;
- the range covers sizes, pre-formed junction pieces and sections depending upon the exact situation.
Kiwa N.V., Technical Assessment Body, represented by Kiwa Ltd. has determined that the manufacturer ofPremcrete Maxiprufe Plus, visited on 2016-05-17 and the manufacturer of Premcrete Maxiprufe 2000, visitedon 2016-05-17) have an effective quality control system in operation cov-ering all aspects required by the BDA Agrément® and the BDA Guideline - BDA Agrément®1. FPC, document control and product testing wereacceptable with sufficient evidence provided in support of the BDA Agrément® Guideline requirements24.
The Quality Systems of the manufacturers cover all clauses required by the BDA Agrément®. Both manufacturersare committed to improving their FPC Quality System and related procedures. Document control and production line procedures were satisfactory with sufficient evidence provided in supportof BDA requirements.All processes inspected in the factories were well organised and there is sufficient space for conducting allprocesses including storage of raw materials and packaging of final products. All area managers and employeesare well trained and confident in executing their respective tasks.
In order to demonstrate that the FPC is in conformity with the requirements of the technical specification described in this Agrément the continuous surveillance, assessment and approval of the FPC will be done in a frequency of not less than once per year by Kiwa Ltd.
1 Waterproofing design- waterproofing systems should be designed by a waterproofing design specialist, such as designers whohave successfully completed the Certified Surveyor in Structural Waterproofing (CSSW) qualificationavailable from the Property Care Association (PCA);
- the System is designed for below-ground vertical and horizontal structural foundation surfaces;- the design of the waterproofing of the earth retaining structure shall be in accordance with BS 81023; - typical applications include backfilled concrete walls, structural slabs, covered rafts, foundations, void-former installations and property line construction; property line construction applications include secant and contiguous piling, skin wall, metal sheet piling, shotcrete and stabilized earth retention walls;
- the System is satisfactory for use as Type A waterproofing and damp proofing protection of below-ground structures Grades 1, 2 and 3 as defined in BS 81023 and the NHBC Standards2;
- the construction shall conform with current Building Regulations, British Standards and relevant Codes ofPractice;
- new concrete should be designed by a Structural Engineer to BS EN 199235,36 to be structurally capablefor the intended use as an earth retaining structure, resisting loading from earth as well as water pressureas recommended within BS 81023;
- the waterproofing of all elements, including walls, floors and foundations, forming below ground structures shall be suitable for their intended use; issues to be taken into account include:a) grade of waterproofing protectionb) waterproofing systems, materials and componentsc) interface with the above ground structured) joints, abutments and service penetrations
- the System and its components shall not remain permanently exposed.
2 Permitted constructions- only constructions designed according to the specifications as given in this Agrément and as shown in section 9 or similar are allowed under this Agrément; in each case the specifier will have to cooperateclosely with the Agrément holder.
3 Acceptable substrates for Premcrete Maxiprufe PlusWithin the framework of this Agrément the following substrate types are allowed to be waterproofed withPremcrete Maxiprufe Plus (see also the figures in section 9), with due respect to article 8.1 and the NHBCStandards2, reference R3(a), (iv):- concrete blinding- clay Heave Boards- compacted Type 1 Hardcore- removable formwork- sufficiently stable ground such as clay or chalk, free of chemical contamination- rigid insulation - adjacent substructures as permanent formwork- piled cut off walls- property-line construction, where temporary works are used to form the basement excavation (secant piling, contiguous piling, steel sheet piling, diaphragm walling, etc.)
The fitness for purpose of the substrates shall be established according section 10, article 5 of this Agrément.
4 Water tightness- an important property of the Premcrete Maxiprufe Structural Waterproofing System concerns the watertightness;
- the System will resist the passage of water and any other form of moisture or vapour infiltration from theground;
- below-ground structures, waterproofed with the System, when installed in accordance with section 10 ofthis Agrément will lead to a Grade 3 waterproofing and comply with the relevant requirements of the national Building Regulations of England, Wales, Scotland and Northern Ireland. See also section 11.
5 Chemical resistance- the gelling of sodium bentonite is adversely affected by the presence of electrolytes (particularly trivalentions) and may also be affected by the presence of soluble cations such as those found in chalk or limesoils; in such cases advice shall be sought from the Agrément holder;
- the System is not affected by organic contaminants;- in chemically-contaminated areas the Premcrete Maxiprufe 2000 layer is hydrated by deliberate soakingwith mains water and leaving for two to three hours before pouring the concrete;
- the substrates for Premcrete Maxiprufe Plus shall comply with section 8, article 3 of this Agrément.
6 Resistance to damage- the Premcrete Maxiprufe 2000 barrier is resistant to damage, due to the swelling capacity giving the ability of self-healing if damaged by puncturing or another form of indentation up to isolated damaged areas in the order of 100 mm2;
- the System is resistant to normal site activities; however, to prevent damage from ongoing work, full protection should be temporarily provided to the installed system and removed prior to the installation ofreinforcement.
7 Resistance to loading- the System as installed beneath a below-ground concrete slab will transmit dead and imposed loads tothe ground safely without excessive deformation, provided that it is adequately confined, properly hydrated and not subjected to point loading; for more details see section 10.5;
- in situations where point loading is anticipated, the Agrément holder’s advice shall be sought.
8 Adhesion to concrete- after the casting of the concrete against the System the free ends of the needle-punched fibres of thePremcrete Maxiprufe 2000 layer and of the locking fleece of the Premcrete Maxiprufe Plus layer becomeembedded in the concrete, which gives a permanent bond between the concrete and the System.
9 Behaviour in relation to fire- the System does not prejudice the fire-resistance properties of the building, the waterproofed earth retaining structure being fully covered with earth; therefore, the components of the System will not contribute to the development stages of a fire or present a smoke or toxic hazard;
- when properly installed, the System will not add significantly to any existing fire hazard; the continuity offire resistance must be maintained, as described in the relevant Building Regulations, see section 11 ofthis Agrément.
10 DurabilityUnder normal service conditions the fully protected Premcrete Maxiprufe Structural Waterproofing Systemwill provide a durable waterproof covering for the life of the building in which it is installed.
Remark 1: As part of the required technical consulting service (see paragraph 10.5) the Agrément holder canprovide, special (CAD) details, for example on connections, protrusions and movement joints.
Remark 2: The Agrément holder hosts regular training courses to provide contractors with the necessary skillsand product knowledge to become a fully system specific certified FIS Approved Contractor.
1 General- the System shall be installed strictly in accordance with the instructions of the Agrément holder33 and therequirements of this Agrément and only by contractors who’s employees have been trained and approvedby the Agrément holder;
- special attention has to be given to the cleaning and preparing of all areas and connections involved before the System components are installed, see sections 10.2 and 10.3;
- waterproofing application shall be scheduled to allow prompt concrete placement or backfill; concretecasting of retaining walls and floor slabs shall be carried out immediately after fixing the waterstops in position.
2 Delivery and site handling- the components of the System are delivered on site in rolls; the label should include product componentname, the suppliers name, health and safety information, weight, the BDA ECBE identification mark,preparation and installation instructions and the number of this Agrément; it is recommended to read theMaterial Safety Data Sheets (MSDS)37 carefully prior to the opening of the packaging;
- all products shall be stored away from direct heat, in dry conditions, under cover and away from the possibility of damage or premature contact with water;
- the rolls shall be protected from being dropped or crushed by objects; care must be exercised when storing large quantities on site;
- the components shall not be exposed to open flame or other ignition sources and be stored away fromflammable material such as paint and solvents;
- to ensure maximum performance of the components when installed, on site precautions should be takento protect them from mud and dirt.
3 Limitations for Premcrete Maxiprufe 2000- Premcrete Maxiprufe 2000 is designed to be used in confinement; the membrane should not be applieddirectly to masonry substrates;
- horizontal surfaces shall be free from excessive standing water; if ground water contains strong acids oralkalis then submit water samples to the Agrément holder for testing;
- installation in running water shall be avoided - proper water management shall be adopted before application of Premcrete Maxiprufe 2000;
- the membrane is designed for use under engineered structural concrete slabs with a minimum thicknessof 150 mm;
- before the installation of reinforcement steel, formwork and pouring of the concrete the Premcrete Maxiprufe 2000 layer shall be cleaned, checked thoroughly and properly repaired where necessary according to the installation instructions of the Agrément holder.
4 Application under concrete slabs- Premcrete Maxiprufe 2000 is recommended for use under reinforced concrete slabs, of thicknesses 150 mm or greater;
- substrate surfaces shall be free of voids or sharp protrusions; voids can be filled with Twinseal Compoundor Hydroseal FX;
- Premcrete Maxiprufe 2000 shall be placed with the grey woven geotextile facing the concrete to beplaced/waterproofed;
- the Premcrete Maxiprufe 2000 barrier shall not extend into foundation bearing planes (e.g. pile caps,ground beams, pads, etc.), but shall completely envelop them;
- further details are given section 9 of this Agrément.
5 Fitness for purpose of the substrate for Premcrete Maxiprufe Plus- the application of Premcrete Maxiprufe Plus is only allowed on a substrate fit for purpose; it is essentialthat the following specific performance requirements are met:• the substrate shall be well compacted or blinded with lean-mix concrete with the surface free from anyexcessive undulation or sharp projections; irregularities in the surface shall be filled with a repair mortaror Twinseal Compound;
• the flatness shall be in accordance with the relevant clauses of BS 81023;• durable strength and stiffness of the structure which must be capable of absorbing all forms of externalloadings as established by a Structural Engineer to BS EN 1991 (Eurocode 1)39 and its National Annex40;
• durable adhesion and pre-treatment of the substrate in accordance with the relevant clauses of BS 81023;
- in case the fitness for purpose has not been demonstrated, installation of Premcrete Maxiprufe Plus is notallowed within the framework of this Agrément.
6 Maintenance- as the System is confined by concrete or protected by lost shuttering and earth or protected by specificmeasures and earth, maintenance is not required, provided that no part of the System remains permanently exposed;
- the Agrément holder shall continue to provide a technical consulting service, such as but not limited tospecial (CAD) details.
1 Requirements: The Building Regulations 2010 and subsequent amendments - A1 Loading - when adequately confined, the System contributes to satisfying this Requirement, see section 8.6 of this Agrément;
- C2(a) Resistance to moisture - the System, including joints, will enable a below-ground structure to satisfy this Requirement, see section 8.4 of this Agrément;
- Regulation 7 Materials and workmanship - the Premcrete Maxiprufe Structural Waterproofing System ismanufactured from suitably safe and durable materials for their application and can be installed to give asatisfactory performance, see section 10 of this Agrément.
2 Requirements: The Building (Amendment) Regulations 2014 (Wales) and subsequentamendments- A1 Loading - when adequately confined, the System contributes to satisfying this Requirement, see section 8.6 of this Agrément;
- C2(a) Resistance to moisture - the System, including joints, will enable a below-ground structure to satisfy this Requirement, see section 8.4 of this Agrément;
- Regulation 7 Materials and workmanship - the Premcrete Maxiprufe Structural Waterproofing System ismanufactured from suitably safe and durable materials for their application and can be installed to give asatisfactory performance, see section 10 of this Agrément.
3 Requirements: The Building (Scotland) Regulations 2004 and subsequent amendments3.1 Regulations 8 (1)(2) Durability of materials and workmanship
- the Premcrete Maxiprufe Structural Waterproofing System is manufactured from acceptable materialswhich are considered to be adequately resistant to deterioration and wear under normal service conditions, provided they are installed in accordance with the requirements of this Agrément, see section 10 of this Agrément.
3.2 Regulation 9 Building Standards-Construction - 1.1 (a)(b) Structure - the application of the System will not adversely affect the building’s ability to transmit loadings, see section 8.6 of this Agrément;
- 3.4 - Moisture from the ground - the System will resist the passage of water and any other form of moisture or vapour infiltration from the ground, see section 8.4 of this Agrément;
- 7.1 (a) Statement of sustainability - the System can contribute to meeting the relevant requirements ofRegulation 9, Standards 1 to 6 and therefore will contribute to a construction meeting a bronze level ofsustainability as defined in this Standard.
3.3 Regulation 12 Building Standards-Conversions - All comments given for the Premcrete Maxiprufe Structural Waterproofing System under Regulation 9also apply to this Regulation, with reference to clause 0.12 and Schedule 6 of this Standard.
4 Requirements: The Building Regulations 2012 (Northern Ireland) and subsequent amendments- 23(a)(i)(iii)(b) Fitness of materials and workmanship - the Premcrete Maxiprufe Structural WaterproofingSystem is manufactured from materials which are considered to be suitably safe and acceptable for useas waterproofing as described in sections 8 and 10 of this Agrément;
- 28 Resistance to ground moisture and water - the System will resist the passage of water and any otherform of moisture or vapour infiltration from the ground, see article 8.4 of this Agrément;
- 30 Stability - being adequately confined and protected, the System contributes to satisfying this Requirement, see section 8 of this Agrément.
5 Construction (Design and Management) Regulations 2015Construction (Design and Management) Regulations 2007 (Northern Ireland) Information in this Agrément may assist the Principal, Construction Design and Management co-ordinator,specifier and contractors to address their obligations under these Regulations, see sections 3 and 4 of thisAgrément.
The use of the Premcrete Maxiprufe Structural Waterproofing System provided it is installed, used and maintained in accordance with this Agrément is accepted by NHBC in relation to NHBC Standards2 Part 5 Substructure, ground floors, drainage and basements, Chapters 5.1 Substructure and ground bearing floors and5.4 Waterproofing of basements and other below ground structures.
