Section 08810 Glass Rev 0

SECTION 08810 GLASS

TABLE OF CONTENTS

Item No Title Page No

PART 1 GENERAL............................................................................................................1

1.01 DESCRIPTION OF WORK ..................................................................................1

1.02 SECTION INCLUDES..........................................................................................1

1.03 RELATED SECTIONS .........................................................................................1

1.04 REFERENCES.....................................................................................................2

1.05 DEFINITIONS.......................................................................................................4

1.06 SUBMITTALS.......................................................................................................6

1.07 QUALITY CONTROL ...........................................................................................8

1.08 HEALTH AND SAFETY CONSIDERATIONS....................................................10

1.09 DESIGN CRITERIA............................................................................................11

1.10 DESIGNATION ..................................................................................................11

1.11 LABELS..............................................................................................................12

1.12 JOB CONDITIONS.............................................................................................12

1.13 WARRANTY.......................................................................................................13

1.14 MAINTENANCE .................................................................................................13

1.15 DELIVERY, HANDLING AND STORAGE .........................................................13

PART 2 PRODUCTS .......................................................................................................15

2.01 GENERAL ..........................................................................................................15

2.02 DESIGNATIONS ................................................................................................15

2.03 MATERIALS.......................................................................................................17

2.04 GLAZING ACCESSORIES ................................................................................25

2.05 GLAZING COMPOUNDS...................................................................................25

2.06 FABRICATION OF GLASS................................................................................25

2.07 TOLERANCES...................................................................................................27

Rev 0 i Contract No:

SECTION 08810 GLASS

TABLE OF CONTENTS (Contd.)

Item No Title Page No

PART 3 EXECUTION ......................................................................................................28

3.01 EXAMINATION ..................................................................................................28

3.02 STANDARDS AND PERFORMANCE ...............................................................28

3.03 PREPARATION .................................................................................................29

3.04 INSTALLATION..................................................................................................29

3.05 INSPECTION .....................................................................................................32

3.06 REPLACEMENT, PROTECTION AND CLEANING ..........................................33

Rev 0 ii Contract No:

SECTION 08810 GLASS

PART 1 GENERAL

1.01 DESCRIPTION OF WORK

A. This Section covers glass materials for windows, doors, glazed entrances, interior side lites, sloped glazing, mirrors, and fire rated glazing, the extent of which is as shown on the Contract Drawings. The Contractor shall furnish all labor, materials, tools and equipment required to complete the Work.

1.02 SECTION INCLUDES

A. Float Glass

B. Heat Absorbing Glass

C. Light Reducing Glass

D. Heat-Treated Glass

E. Reflective Coated Glass

F. Laminated Glass

G. Wired Glass

H. Patterned Glass

I. Sealed Insulating Glass Units

J. Fire Resistant Glass

K. Bent Glass

1.03 RELATED SECTIONS

A. Section 01320 Construction Progress Documentation

B. Section 01330 Submittal Procedures

C. Section 01410 Regulatory Requirements

D. Section 01450 Quality Control

E. Section 01560 Temporary Barriers and Enclosures

F. Section 01650 Product Delivery Requirements

G. Section 01660 Product Storage and Handling Requirements

H. Section 01740 Cleaning

Rev 0 1 of 34 Contract No:

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I. Section 01780 Closeout Submittals

J. Section 04810 Unit Masonry Assemblies

K. Section 06410 Custom Cabinet

L. Section 07920 Joint Sealants

M. Section 08110 Steel Doors and Frames

N. Section 08120 Aluminum Doors and Frames

O. Section 08210 Wood Doors

P. Section 08520 Aluminum Windows

Q. Section 08710 Door Hardware

R. Section 08850 Glazing Accessories

S. Section 10810 Toilet Accessories

T. Section 10820 Bath Accessories

U. Section 12350 Specialty Casework

V. Section 12490 Window Treatment

W. Section 12560 Institutional Furniture

1.04 REFERENCES

A. The referred codes and standards are intended to provide an acceptable level of quality for materials and products. In case of conflict between these standards and the text of this Specification, the Specification text shall govern.

B. The latest revision of the referred codes and standards shall be used wherever applicable. In case of conflict, the Contractor shall propose equipment confirming to one group of codes and standards.

C. SASO Saudi Arabian Standards Organization

1. SASO 1915 Glass in Building Basic Soda Lime Silicate Glass Products: Definitions and General Physical and

Mechanical Properties

2. SASO 1916 Glass in Building Basic Soda Lime Silicate Glass Products: Float Glass

3. SASO 1917 Glass in Building Basic Soda Lime Silicate Glass Products: Patterned Glass


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4. SASO 1918 Glass in Building Basic Soda Lime Silicate Glass Products: Wired Patterned Glass

D. ANSI American National Standards Institute

1. ANSI Z97.1 Performance Specifications and Methods of Test for Transparent Safety Glazing Materials Used in

Buildings

E. ASTM American Society for Testing and Materials

1. ASTM C162 Standard Terminology of Glass and Glass Products

2. ASTM C1036 Standard Specification for Flat Glass

3. ASTM C1048 Standard Specification for Heat Treated Flat Glass Kind HS, Kind FT Coated and Uncoated Glass

4. ASTM C1172 Standard Specification for Laminated Architectural Flat Glass

5. ASTM C1349 Standard Specification for Architectural Flat Glass Clad Polycarbonate

6. ASTM C1376 Standard Specification for Pyrolytic and Vacuum Deposition Coatings on Flat Glass

7. ASTM E90 Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements

8. ASTM E283 Standard Test Method For Determining the Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors Under Specified Pressure Differences Across the Specimen

9. ASTM E330 Standard Test Method for Structural Performance of Exterior Windows, Curtain Walls, and Doors by

Uniform Static Air Pressure Difference

10. ASTM E413 Classification for Rating Sound Insulation

11. ASTM E773 Standard Test Method for Accelerated Weathering of Sealed Insulating Glass Units

12. ASTM E774 Standard Specification for the Classification of the Durability of Sealed Insulating Glass Units

13. ASTM E1300 Standard Practice for Determining Load Resistance of Glass in Buildings

F. CPSC Consumer Product Safety Commission

1. 16 CFR Part 1201 Safety Standard for Architectural Glazing Materials


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G. FGMA Flat Glass Marketing Association

1. Fabrication, Erection and Glazing Hours Manual

2. Engineering Standards Manual

3. Glazing Sealing Systems Manual

4. Sealant Manual

H. GANA Glass Association of North America

1. Building Materials Directory

2. Glazing Manual

3. Laminated Glazing Reference Manual

4. Tempered Glass Engineering Standard Manual

I. NFPA National Fire Protection Association

1. NFPA 80 Standard for Fire Doors and Fire Windows

2. NFPA 101 Life Safety Code

J. NFRC National Fenestration Rating Council

1. Temporary Label Requirements

K. SGCC Safety Glass Certification Council

1. Permanent Label Requirements

L. UBC Uniform Building Code

1. Standard 24-1 Flat Glass

2. Standard 24-2 Safety Glazing, Part I & II

M. UL Underwriters Laboratories, Inc.

1. UL 752 Bullet-Resisting Equipment

1.05 DEFINITIONS

A. annealed glass: Glass that has been subjected to controlled cooling to reduce the presence of residual stresses in glass thus allowing easy cutting.

B. coated glass: Glass substrate to which a coating has been applied, i.e. one or more thin solid layers of inorganic materials, in order to modify one or more of its properties.


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C. damaged glass: Glass with edge damage or other imperfections that, when installed, could weaken glass and impair performance and appearance.

D. deterioration of coated glass: Defects developed from normal use that are attributed to the manufacturing process and not, for example, from glass breakage and practices for maintaining and cleaning coated glass contrary to manufacturers written instructions. Defects include peeling, cracking, and other indications of deterioration in metallic coating.

E. deterioration of insulating glass: Failure of the hermetic seal under normal use that is attributed to the manufacturing process and not, for example, from glass breakage and practices for maintaining and cleaning insulating glass contrary to manufacturers written instructions. Evidence of failure is the obstruction of vision by dust, moisture, or film on interior surfaces of glass.

F. deterioration of laminated glass: Defects developed from normal use that are attributed to the manufacturing process and not, for example, from glass breakage and practices for maintaining and cleaning laminated glass contrary to manufacturers written instructions. Defects include edge separation, delamination, materially obstructing vision through glass, and blemishes exceeding those allowed by referenced laminated-glass standard.

G. EPDM: Ethylene propylene diene terpolymer.

H. float glass: Transparent glass, the surfaces of which are flat and parallel so that they provide clear undistorted vision and reflection; float glass is manufactured by allowing glass from a tank furnace to flow across a bath of molten metal.

I. fully tempered glass (FT): Glass that is up to 4 times as strong as annealed glass and when broken breaks into innumerable small fragments of more or less cubical shape; it is intended for general glazing where high strength is desired and for safety glazing such as doors, shower enclosures etc. See heat treated glass below.

J. heat strengthened glass (HS): Glass that is about twice as strong as annealed glass and when broken the fragments are somewhat larger than fully tempered glass; it is intended for general glazing where additional strength is desired. See heat treated glass below.

K. heat treated flat glass: Classified in two different categories: Fully tempered (FT) and heat strengthened (HS) flat glass.

L. insulating glass: Comprises two or more panes of glass hermetically sealed at their periphery; the air space(s) so formed are generally filled with dehydrated air; however other gases may be used for improved thermal insulation.

M. interspace: Space between panes of a sealed insulating glass unit that contains dehydrated air or a specified gas.

N. laminated glass: Consists of two or more panes of glass with an interlayer of reinforcing material between each pane; the interlayers are resistant to penetration and they absorb impact shock, holding the glass in place and preventing extensive spalling of glass fragments.

O. MVSD: Magnetic Vacuum Sputtered Deposition, a process of off-line coating giving


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option of extensive color range. Glass is not temperable after coating.

P. off-line coating: Process whereby individual pieces of glass are coated. Also see MVSD above.

Q. on-line coating: Process whereby the coating is applied to the surface of a continually moving ribbon of glass during the manufacturing process. Also see Pyrolytic coating below.

R. patterned glass: Translucent glass manufactured by the rolling process; usually the deeper the pattern, the greater the obscuration and diffusion.

S. polished wired glass: Transparent wired glass produced by grinding and polishing wired patterned glass.

T. pyrolytic coating: Process of on-line coating of glass, during its manufacture stage, giving a limited color range. Glass is temperable after coating.

U. safety glass: Glass which either does not break easily, or breaks safely, and affords protection from cutting and piercing injuries in the event of accidental human impact.

V. security glass: Glass that affords protection against a specified level of attack.

W. sheet glass: Transparent glass, manufactured by the flat drawn process; it has natural fire-finished surfaces, but because the two surfaces are never perfectly flat and parallel, there is always some distortion of vision and reflection.

X. silvered glass: Glass produced by the deposition of silver on to glass; the silver is then protected by coatings, such as in the manufacture of mirrors.

Y. tempered glass: See heat treated flat glass.

Z. tinted glass: Transparent or translucent glass, depending on type of glass, where the whole body of the glass is tinted.

AA. translucent glass: Glass that transmits light with varying degrees of diffusion so that vision is not clear.

BB. transparent glass: Glass that transmits light and permits clear vision through it.

CC. venetian strip silvering: Process by which alternate bands of silvered and clear glass are produced to form what is often referred to as one-way vision glass - see also silvered glass.

DD. wired glass: Glass that has steel wire mesh completely embedded in it.

EE. wired patterned glass: Translucent wired glass with a patterned surface.

1.06 SUBMITTALS

A. The Contractor shall submit to the Royal Commission, under the provisions of SECTION 01330, the following items for review and approval before commencing


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Work:

1. Product Data

a) Manufacturer's specifications and installation instructions for the following:

1) Glass, each type required.

2) Insulating glass units.

3) Transparent (one-way vision glass) mirrors.

4) Bullet resistive material.

5) PVB interlayer, each type required.

2. Manufacturer's Certificates

a) Certificates stating that all glass delivered to the site are in conformance with the provisions of the specification for label compliance, fire-, sound- and insulation ratings, and finishes.

b) Certificates stating that wire glass, meets requirements for safety glazing material as specified in ANSI Z97.1.

c) Certificate on shading coefficient.

d) Certificate on "R" value, when value is specified.

3. Shop Drawings

a) Sections and details of glass installed in framing members including head, mullion, transom, jamb, and sill details.

b) Glazing schedule, using same designations indicated on Drawings for glazed openings, listing glass types and thicknesses for each size opening and location.

4. Samples

a) Submit 300 x 300 mm square samples of the following:

1) Each color of tinted float glass.

2) Each type of patterned glass.

3) Coated vision glass.

4) Ceramic-coated spandrel glass (opacifier for spandrel glass).

5) Each pattern and color of ceramic-coated vision glass.

6) Wired glass.

7) Fire-resistive glazing products.

8) Each type of laminated glass with colored interlayer.

9) Insulating glass for each designation indicated.


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b) The Royal Commission's review will be for color, reflectivity, finish and pattern.

c) Insulating glass samples need not be hermetically sealed, but edge construction must be included.

d) Provide two additional 300 x 300 mm square samples of expected production run appearance defects, if any, of heat absorbing and light reducing glass.

5. Pre-Construction Adhesion and Compatibility Test Report

a) Glazing sealant manufacturers test report indicating glazing sealants were tested for adhesion to glass and glazing channel substrates and for compatibility with glass and other glazing materials.

6. Submittals indicating the following:

a) Fabricator of sealed insulating glass units meets specified qualifications.

b) Installer of products of this Section meets specified qualifications.

c) Indicate by transmittal that glazier has received copy of handling and glazing instructions.

7. Maintenance Instructions

a) Furnish maintenance instructions for each type of glass for use during construction and for use by the Royal Commission after acceptance of the work.

8. Quality Control Submittals

a) Design Data

1) Glass size calculations, prepared in accordance with specified standards.

b) Reports and records of the Contractors Internal Quality Control.

c) Reports and records of the Contractors External Quality Control.

9. Handing-Over Submittals

a) Project Records and as-built drawings.

1.07 QUALITY CONTROL

A. The Contractor shall be responsible for the quality of work and shall develop and propose programs and methods of construction and testing such as to achieve the specified quality to the approval of the Royal Commission in accordance with SECTION 01450.


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B. Codes and Standards

1. The Contractor shall comply with the applicable provisions of the referenced codes and standards as specified below, except as otherwise shown and specified by the Royal Commission:

a) Fire-rated door assemblies shall comply with NFPA 80, and shall be listed and labeled by a testing and inspecting agency acceptable to the Royal Commission.

b) Fire-rated window assemblies shall comply with NFPA 80, and shall be listed and labeled by a testing and inspecting agency acceptable to the Royal Commission.

c) Safety glass shall comply with testing requirements in ANSI Z97.1.

d) Float and sheet glass shall comply with ASTM C1036 for annealed glass, and ASTM C1048 for heat strengthened and full tempered glass.

e) Insulating glass units shall be fabricated to meet or exceed requirements of ASTM E773 and E774.

f) Laminated glass shall comply with ASTM C1172.

g) Installation and materials shall comply with FGMA Glazing Manual.

C. Fabrication and Labels

1. Heat-treated glass shall be fabricated with roll ripple (surface waves) parallel to the transom. It shall be free of visible mosaic or pattern optical distortion (as opposed to slight waviness noticeable when viewpoint is moving), and from defects caused by roller pick.

2. Glass shall be identified by the manufacturer's labels for grade and quality. The labels shall not be removed until authorized by the Royal Commission. Safety glass shall be permanently marked with certification label of Safety Glazing Certification Council or another certification. Heat-treated units shall be fabricated with permanent label in consistent location at either lower corner.

D. Mock-Up

1. The Contractor shall prepare sample installations for each type of glazing before proceeding with the work. Samples shall be glazed not less than 1 week in advance of the scheduled glazing work.

2. The full-scale sample mock-up shall be erected on site to evaluate the color, reflection and distortion of glass.

3. Approved mock-ups shall serve as standard for work. Mock-ups may be installed in finish locations and remain as part of the complete projects.

E. Qualifications

1. Qualifications of Manufacturers


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a) Glass products used in the work of this Section shall be produced by manufacturers regularly engaged in manufacturing glass and with a history of successful production acceptable to the Royal Commission.

2. Qualifications of Fabricators and Installers

a) The Contractor shall use adequate number of skilled workmen who are thoroughly trained and experienced in the necessary crafts and who are completely familiar with the specified requirements and the methods needed for proper performance of work.

b) Fabricator of sealed insulating glass units shall have minimum 5 years documented experience producing sealed insulating glass units specified this Section.

c) Installers shall have minimum 5 years documented experience installing products similar in material, design, and extent to that indicated for the project and specified in this Section. The Installer shall be approved by the fabricator.

d) The Contractors site supervisor(s) shall have knowledge of referenced standards minimum 5 years documented experience.

F. Internal Quality Control

1. The Contractors internal quality control shall include but not be limited to:

a) Checking suppliers test certificates and certificates of compliance to conform with Specification and referenced standards prior to assembly or installation.

b) Checking suppliers delivery tickets for compliance with supply order and Specification.

1.08 HEALTH AND SAFETY CONSIDERATIONS

A. All works undertaken in relation to this Specification are to be completed in full accordance with the respective health and safety requirements established by the following:

1. Kingdom of Saudi Arabia

a) Legislation, Regulation, Standards and Codes.

2. Royal Commission Regulations

a) Standards, Contractual Conditions, and Health and Safety Systems.

3. Contractor

a) Health and Safety Standards and Systems as accepted by the Royal Commission.


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B. In the absence of any of the above, best accepted industry practice shall be employed throughout.

1.09 DESIGN CRITERIA

A. Glazing systems shall be capable of withstanding normal thermal movement, dead loads, wind loads acting normal to plane of glass and impact loads (where applicable) without failure. This shall include loss or glass breakage attributable to defective manufacture, fabrication, or installation, failure of sealants or gaskets to remain watertight and airtight, deterioration of glazing materials, and other defects in construction.

B. Glass Statistical Factor

1. Glass thicknesses indicated on drawings are minimums and are for detailing only. Glass thicknesses shall be confirmed by project loads and in-service conditions.

2. Glass lites shall be provided for various size openings in nominal thicknesses indicated on drawings, but shall have thicknesses and strengths (annealed or heat treated) required to meet or exceed criteria defined in ASTM E1300.

3. Glass thicknesses may increase to conform to the statistical factor, but not decrease. All glass for the size openings shown will be in thicknesses such that the probability of breakage at "Design-Wind Pressure" will not exceed 8 lites per 1000 lites. The probability of breakage of 8/1000 is based on a design factor of 2.5 for Annealed Glass, 1.6 for Heat-Strengthened and 1.3 for Tempered Glass. The glass manufacturer shall provide substantiating glass breakage data.

C. Sloped Glazing Statistical Factor

1. For glass inclined more than 15 from the vertical, provide glass thicknesses such that probability of breakage at the "Design Wind Pressure" will not exceed 0.7 lites per 1000, to take care of the variables that exist in designing sloped glazing. Inclined glass shall be laminated for safety unless fall out screens are provided.

2. For increased strength and reduced thickness and weight, tempered laminated glass may be approved by the Royal Commission after the Contractor submits detailed design analysis.

D. Limit glass deflection to 1/200 or flexure limit of glass, whichever is less, with full recovery of glazing materials.

E. The Contractor shall coordinate thicknesses with framing system manufacturers.

1.10 DESIGNATION

A. Surfaces of a sealed insulating glass unit are designated as follows:

1. Side 1: Exterior surface of outer pane.


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2. Side 2: Interior surface of outer pane.

3. Side 3: Interior surface of inner pane.

4. Side 4: Exterior surface of inner pane.

1.11 LABELS

A. Temporary Labels

1. Temporary label shall be provided on each lite of glass identifying manufacturer or brand and glass type, quality and nominal thickness.

2. Label shall be in accordance with NFRC (National Fenestration Rating Council) label requirements.

3. Temporary labels shall remain intact only until glass is approved by the Royal Commission as prolonged exposure to environmental influences (heat, water, etc.) may leave indelible marks from adhesive on the glass.

4. The Contractor shall not use sharp tools or corrosive materials to remove labels.

B. Permanent Labels

1. Permanent labels shall be located in corner for each pane.

2. Glass shall be labeled in accordance with ANSI Z97.1 and SGCC (Safety Glass Certification Council) label requirements.

3. Bullet resistance glass or plastic assemblies shall be labeled in accordance with UL 752 requirements for power rating specified.

1.12 JOB CONDITIONS

A. Environmental Requirements

1. The Contractor shall not proceed with installation of sealants under adverse weather conditions, or when ambient and substrate temperatures are outside limits permitted by glazing material manufacturers for installation of materials. Glazing shall not be installed when ambient temperature is less than 10C.

2. Glazing channel substrates shall not be wet from rain, frost, condensation, or other causes prior to application of glazing materials.

B. Field Measurements

1. The Contractor shall field measure openings so as to verify them with drawing dimensions before ordering and fabricating tempered glass products. The Contractor shall be responsible for proper fit of field measured products.


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1.13 WARRANTY

A. The Contractor shall be responsible for warranting the products, installation and workmanship of all glazing, on behalf of the suppliers, fabricators and installers on work specified in this Section and undertake to carry out all replacements specified therein for the stipulated amount of time.

B. The Contractor shall furnish the following warranties to the Royal Commission:

1. Manufacturers warranty on coated-glass products, agreeing to furnish replacements for those coated-glass units that deteriorate within 10 years from date of project completion.

2. Manufacturers warranty on laminated glass, agreeing to furnish replacements for laminated-glass units that deteriorate or exhibit delamination within 10 years from date of project completion.

3. Manufacturers warranty on insulating glass, agreeing to furnish replacements for insulating-glass units that deteriorate or exhibit seal failure, interpane dusting or misting within 10 years from date of project completion.

4. Manufacturers warranty that bullet resistive plastic material shall remain visibly clear without discoloration for 10 years.

5. Manufacturers warranty on mirrored glass and transparent mirrors (one-way vision glass), agreeing to furnish replacements for units that exhibit deterioration of plating within 15 years from date of project completion.

1.14 MAINTENANCE

A. Extra Materials

1. The Contractor shall provide the number of units as specified by the Royal Commission, of each size and type of sealed insulating glass units.

1.15 DELIVERY, HANDLING AND STORAGE

A. The Contractor shall deliver, handle and store glass in accordance with SECTIONS 01650 and 01660, as well as the following requirements:

1. Ordering

a) The Contractor shall comply with manufacturer's ordering instructions and lead time requirements to avoid construction delays. Schedule delivery to coincide with glazing schedules so minimum handling of crates is required.

2. Delivery

a) Glass shall be securely and safely crated for delivery in compliance with manufacturers directions, and as required to prevent any damage to


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glass and glazing materials, including effects of moisture, condensation and temperature changes.

b) Where insulating glass units will be exposed to substantial altitude changes, the Contractor shall strictly follow manufacturer's instructions.

c) Customs/cushions shall be provided at edges of glass to prevent impact damage. Glass faces shall be protected from scratches and abrasions. Each piece of glass shall be delivered with factory labels intact, indicating glass type, quality and thickness.

d) Labels shall not be removed until installation has been inspected and accepted.

e) The Contractor shall not open crates except as required for inspection for shipping damage.

3. Storage and Protection

a) Glass shall be stored strictly according to the manufacturers printed instructions on crate in areas least subject to traffic or falling objects. Glass shall be stored in a dry, well ventilated location, carefully protected at all times from soiling by dust and dirt, atmospheric condensation and other moisture. Storage area shall be kept clean and dry at all times. Damaged or defective glass shall be replaced with new glass at no additional cost.

4. Handling

a) All packing shall be opened with care so as not to damage the glass, coating, sealant or opacifier film by contact, friction or any hard object. Glass units shall be unloaded one at a time, from the front of the packing or the frame. Rotation of glass on its corner and sliding of glass or rubbing between glass surfaces shall be prevented. Glass shall be handled with dry, clean gloves.

b) The Contractor shall unpack cases following printed instructions on case. Careful attention shall be paid to avoid twist or damage to the packing. Stack individual panes on edge using cushioned pads, leaned slightly (6 to 8 to the vertical) against upright supports with separators between each glass.

c) During handling with vacuum cups, the Contractor shall ensure that the cups are clean and free from silicone or oil contamination or sharp fragments. Avoid direct contact with the coated side.


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PART 2 PRODUCTS

2.01 GENERAL

2.02

A. All goods and products covered by these Specifications shall be procured, when available, from an in-Kingdom manufacturer, Procurement of all goods and products manufactured out-of-Kingdom must be approved by the Royal Commission.

B. Glass thickness shall be 6 mm per lite unless noted otherwise on the Contract Drawings. Panel sizes shown on the Contract Drawing shall fit the frames.

C. The Contractor shall establish and coordinate glass types to identify glass or glazing assemblies on drawings, preferably on exterior elevations for exterior windows so as to retain glass types required with glazing assemblies.

D. Substitutions of glass types shall not be permitted.

DESIGNATIONS

A. Part 2 of this Section is organized, wherever possible using ASTM standard designations. The Contractor shall use the following table for determining the characteristics of glass specified.

TABLE 2A: CHARACTERISTICS OF GLASS AS PER ASTM C1036 AND C1048

ASTM C1036 DESIGNATIONS Class 1 clear

Class 2 tinted, heat absorbing and light

reducingClass 3, tinted, light reducing

Type I, transparent q1, q2, q3, q4, q5, q6 q3, q4, q5

Styles A & B q3, q4, q5

Type II, patterned or wired Form 1, wired, polished 2 faces q7, q8 q7, q8, Styles A & B q7, q8

Form 2, patterned and wired q7, q8 q7, q8, Styles A & B q7, q8

Form 3, patterned, not wired q7, q8 q7, q8, Styles A & B q7, q8

ASTM C1048 DESIGNATIONS Class 1 clear

Class 2 tinted, heat absorbing and light

reducingClass 3, tinted, light reducing

Kind HS: Heat Strengthened

Type I, transparent q3, q4, q5, q6 q3, q4, q5 Styles A & B q3, q4, q5

Type II, Form 3, patterned q7, q8 q7, q8, Styles A & B q7, q8

Kind FT: Fully Tempered

Type I, transparent q3, q4, q5, q6 q3, q4, q5 Styles A & B q3, q4, q5

Type II, Form 3, patterned q7, q8 q7, q8, Styles A & B q7, q8


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Legend for Table 2A:

Quality Designations for Types I & II (ASTM C1036 4.2 & 4.3):

q1: Mirror Select

q2: Mirror

q3: Glazing Select - Architectural fenestration where observer views distant objects

q4: Glazing A - Appliances and show cases where observer views near objects

q5: Glazing B - General glazing applications that have lesser aesthetic demands than q3 or q4

q6: Greenhouse

q7: Decorative

q8: Glazing - Some surface blemishes allowed

Mesh Designations for Type II, Forms 1 & 2 (ASTM C1036 6.8.1.2):

m1: Diamond

m2: Square

m3: Parallel Strand

m4: Special

Finish Designations for Type II, forms 2 & 3:

f1: Pattern one face

f2: Pattern both faces

Pattern Designations for Type II, Forms 2 & 3:

p1: Linear

p2: Geometric

p3: Random

p4: Special

Conditions applying to ASTM C1048:

Condition A: Uncoated surfaces.

Condition B: Spandrel glass, one surface ceramic coated.

Condition C: Other coated glass.


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2.03 MATERIALS

A. General

1. The Contractor shall see glass schedule on Contract Drawings for specific glass to be used in project. Glass thickness shall be verified. Refer to ASTM C1036 and C1048 for glass designation.

B. Clear Uncoated Plate or Float Glass

1. Annealed Clear Float Glass shall be polished plate or float glass meeting requirements of ASTM C1036, Type I, Class 1, Quality q3. Float glass shall have parallel surfaces which provide clear undistorted vision and reflection without any physical impurities. Thickness of glass shall be as indicated in schedules or as required by size and wind load.

C. Frosted Glass

1. Frosted Glass shall be 6 mm thick float glass, Type 1, Class 1, quality q4. One side only shall be frosted, by sandblasting with 120 grit silica to remove glaze and reflecting properties. Streaks, shading, or contrasting shall not be acceptable.

D. Clear Sheet Glass

1. Clear Sheet Glass shall be of double strength with thickness as indicated. Sheet glass shall be used only for secondary purposes, because there will always be some distortion of vision and reflection. The two surfaces of sheet glass shall almost be flat and parallel.

E. Heat-Absorbing Glass

1. Heat-Absorbing Plate or Float glass shall be manufacturer's standard blue-green tinted plate or tinted as shown on the windows schedule, with less than 60% solar heat transmittance and approximately 75% light transmission. Nominal thickness of glass shall be 6 mm, except as otherwise indicated.

2. Tinted heat absorbing glass shall comply with ASTM C1036 and C1048, Type I, Class 2, Quality q3, Style A.

F. Tinted Light Reducing Glass

1. Light-Reducing Plate or Float Glass shall be manufacturer's standard annealed tinted uncoated plate or float glass complying with ASTM C1036, Type I, Class 3, Quality q3, Style A. Tint shall be in accordance with glass schedule or as selected by the Royal Commission. Nominal thickness of glass shall be 6 mm, except as otherwise indicated and shall provide approximately 40 to 52% light transmittance.

G. Heat-Treated Glass

1. Heat-Treated Glass shall be either of the two following kinds as shown on glass schedule and Contract Drawings:


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a) Fully Tempered (FT) or Thermally Toughened Glass

1) Only fully tempered glass can be produced to conform as safety glass as defined by CPSA 16 CFR 1201, ANSI A97.1 and ASTM C1048.

2) Fully Tempered (safety) Glass (FT) shall be either clear, patterned or body tinted float or sheet glass, which has been thermally toughened by manufacturer's standard process (after cutting to final size), to achieve a flexural strength of 4 times normal glass strength. The glass shall be clear, tinted or patterned, as indicated by the Royal Commission and of specified nominal thickness.

3) Float glass used for fully tempered glass shall not have any nickel sulphide inclusions (NiS) that can cause spontaneous breakage of fully tempered glass. The Contractor shall have Heat Soak Test (HST) performed by the manufacturer to rule out inclusion of NiS and submit the test reports to the Royal Commission.

4) Tempered Glass shall not be drilled or cut after tempering. Any post-tempering operations such as edge-grinding, sandblasting, etc. shall be avoided as it may cause premature failure of the glass.

5) Clear Fully Tempered Glass shall comply with the requirements for safety glass according to ASTM C1048, Kind FT, Condition A, Type I, Class 1, Quality q3. Tinted tempered glass shall comply with ASTM C1048, Kind FT, Condition A, Type I, Class 2, Quality q3.

6) Tempered Patterned Glass (Obscure) shall comply with ASTM C1048, Kind FT, Type II, Class 1, Form 3, Quality q8, Finish f1, Pattern p3, with shallow or deep texture as specified by the Royal Commission.

7) Wherever possible, tong marks shall be located along concealed edges set in glazing system.

8) Only on-line coated glass shall be tempered; Off-line coatings shall generally be applied after the tempering process unless a temperable glass is used, wherein the coatings shall be applied before the heat treatment of the glass.

9) Opaque float- or sheet glass shall have a colored ceramic frit fired into one surface during the tempering process.

10) Cladding glass shall be produced from body tinted or reflective coated glass which in tempered form is opacified, i.e. made opaque, by means of an organic coating or film.

11) Do not exceed the following special flatness tolerances in face, direction, and location based on 6 mm glass thickness. Other glass thickness shall be inversely proportionate tolerances.

(a) For 0.6 m run; 1.6 mm bow.

(b) For 1.6 m run; 3 mm bow.

(c) For 3 m run; 9.5 mm bow.


SECTION 08810 GLASS

b) Heat Strengthened Glass (HS)

1) The Contractor shall not use heat strengthened glass where compliance with ANSI Z97.1 is required except with manufacturers written documentation of compliance. Heat strengthened glass shall not be regarded as safety glass.

2) Either clear, patterned or body tinted float or sheet glass which has been heat-strengthened by manufacturer's standard process, after cutting to final size, to achieve a flexural strength of 2 times normal glass strength. The glass shall be either clear, tinted or patterned, as indicated by the Royal Commission and of specified nominal thickness.

3) Clear Heat Strengthened Glass shall comply with ASTM C1048, Kind HS, Condition A, Type I, Class 1, Quality q3.

4) Tinted Heat Strengthened Glass shall comply with ASTM C1048, Kind HS, Condition A, Type I, Class 2, Quality q3.

5) Only on-line coated glass shall be heat strengthened. Off-line coatings shall generally be applied after the heat strengthening process unless a temperable glass is used, wherein the coatings shall be applied before the heat treatment of the glass.

6) Opaque float glass or sheet glass shall have a colored ceramic frit fired into one surface during the heat strengthening process.

7) Cladding glass shall be produced from body tinted or reflective coated glass which in tempered form is opacified, i.e. made opaque, by means of an organic coating or film.

8) Limit bow of glass surface, in face, direction, and location to 1.6 mm in 900 mm run and 3 mm in 2400 mm run based on 6 mm glass thickness. Other glass thickness shall be inversely proportionate tolerances.

H. Reflective Coated Float Glass

1. Reflective Coated Glass shall be produced from annealed, heat-strengthened or fully tempered float glass meeting requirements of ASTM C1036, ASTM C1048, Condition C, Type 1, Class 1, Quality q3; with pyrolitic or sputtered reflective metallic coating as specified. Coating shall be on surface specified. Glass thickness shall be as shown in the glass schedule and the coating shall match Royal Commission's approved sample as selected from the manufacturer's standard line of coated glass.

2. Reflective Coated Glass shall meet the levels of indoor and outdoor light reflectance and transmittance, solar heat reflectance and transmittance, and surface emissivity as specified in the glass schedule.

3. Either of the following coating systems shall be provided as specified by the Royal Commission:

a) Medium performance solar control coating on clear float glass which is coated during manufacture (on-line pyrolitic) with a reflective layer that is sufficiently durable for the glass to be used as single glazing.


SECTION 08810 GLASS

b) High performance solar control coating on clear or tinted float glass, which is coated after manufacture (off-line sputtered) and also after any further treatment like lamination and tempering. This type of glass shall be used for double-glazing only with the coating on the second surface.

4. Reflective Tempered Glass

a) Glass shall be kind FT, Type I, Class 1, Quality q3 with reflective metallic coating, having nominal values of 25% day light, 30% solar, and 7.9% ultraviolet transmittance within 3%.

I. Spandrel Glass

1. Spandrel glass shall be heat-strengthened or fully tempered float glass, clear, tinted, or reflective, 6 mm thick, except as otherwise indicated and shall comply with ASTM C1048, Type HS or FT, Condition B, Type I, Class 1, Quality q3.

2. Either an opaque foil, polyester opacifier film, applied paint, or fused opaque ceramic enamel coating shall be provided to second surface of monolithic glass or second, third or fourth surface of insulating glass units and laminated glass to match Royal Commission's approved sample and glass schedule. Ceramic enamel coating shall be applied by heat treatment process and fused into glass surface. Pattern of such silk-screened ceramic frit coating shall be as shown on Contract Drawings or as approved by the Royal Commission.

3. Glass shall not exceed manufacturer's maximum warpage limit.

4. Applied finish shall be resistant to flaking, cracking, and peeling of coating due to extremes of temperature variation and high humidity within the spandrel cavity.

5. Opacified spandrels shall have a trim back of the opacified material to ensure glass adhesion to the bonding material in case of structural glazing. The Contractors Shop Drawings shall indicate the applicable edges trimmed back according to the design requirement.

J. Wired Glass

1. Clear (Polished) Wired Glass shall be flat form, wired and polished on both faces with welded steel wire mesh. The wire mesh shall be grid of 15.9 mm, welded at all intersections manufactured of wire of diameter more than or equal to 0.43 mm. Clear wired glass shall comply with ASTM C1036, Type II, Class 1, Form 1, Quality q7, Mesh m2. Wired glass shall be 6 mm thick, except as otherwise indicated and tested, listed, and labeled by UL where fire resistance rating and safety rating is required. Fire resistance rated wired glass shall have diamond mesh (m1).

2. Figured or Patterned (Obscure) Wired Glass shall be wired and figured as stated above. Figured wired glass shall be 6 mm thick (nominal) except as otherwise indicated. Patterned Wired Glass shall comply with ASTM C1036, Type II, Class 1, Form 2, Quality q7. Mesh (m), figure or pattern (p), and texture shall be as selected by the Royal Commission from manufacturers standard patterns, either on one side or both (f).


SECTION 08810 GLASS

K. Patterned Glass

1. Patterned (Figured) Glass shall be produced by the rolling process as a translucent glass according to ASTM C1036, Type II, Class 1, Form 3, Quality q7, with shallow texture or deep texture as approved. Pattern (p) shall be as selected by Royal Commission from manufacturer's standard patterns, either one side or both (f1 or f2). If tinted patterned glass is required, it shall be body tinted during the manufacturing process. Nominal thickness of figured glass shall be 6 mm, except as otherwise indicated.

L. Laminated Glass

1. Laminated (Safety) Glass shall comply with ASTM C1172 and ANSI Z97.1. Laminated glass shall consist of 2 equally thick annealed float glass panes complying with ASTM C1036, Type I, Class 1 clear, Quality q3 (glazing select) permanently laminated together with a plastic interlayer of heat and light stable polyvinyl butyral (PVB). Wherever specified, heat strengthened or fully tempered flat glass with horizontal tempering and complying with ASTM C1048 shall be used for the laminated glass. The thickness of the outer and inner glass pane, as well as the PVB interlayer of the laminated glass shall be as specified by the Royal Commission. However, the minimum thickness of the PVB interlayer shall be 0.38 mm, thereby creating a minimum thickness of the laminated glass as 6.38 mm with two panes of 3 mm float glass on either side of the interlayer. Such a laminated glass shall be used wherever specified for single pane glazing and for the outer pane of insulating glass units, as indicated on glass schedule.

2. A 0.76 mm thick PVB shall be used for vertical glazing.

3. Where horizontal or sloped glazing is indicated, use minimum 1.52 mm thick PVB interlayer.

4. If reflective coated glass is specified for the laminated glass, it shall be used for the outer glass pane, with the coated surface permanently in contact and sealed by the PVB interlayer.

5. If specified provide a low-emissivity coating with low internal reflectivity to the inner surface (surface 4) of the inner pane.

6. Where tinted laminated glass is specified, either of the following two options shall be used, as specified on the glass schedule:

a) Both panes shall be tinted as per approved color, and the plastic interlayer shall be clear.

b) Both panes shall be of clear glass and the interlayer shall be colored PVB having heat and ultraviolet light color stabilization.

7. Where obscure (frosted) laminated glass is specified, use either of the following options as specified on the glass schedule:

a) White PVB with clear glass.

b) Obscure glass and clear PVB.


SECTION 08810 GLASS

M. Laminated Noise-Reducing Glass

1. Two clear sheets of float (plate) glass shall be permanently laminated together with a 1.14 mm thick resilient clear plasticized sheet of polyvinyl butyral (PVB), produced specifically for laminating glass.

2. For STC rating of 35, the Contractor shall provide laminated noise-reducing glass of 6.76 mm nominal thickness, unless otherwise shown.

3. Thickness of individual glass shall be as required to obtain the indicated STC ratings, in accordance with ASTM E90, but shall not be less than that required for strength.

N. Laminated Bullet-Resistant Glass

1. Laminated Bullet-Resistant Glass shall be composed of two clear sheets of float glass permanently laminated together with special tough clear plasticized sheets of polyvinyl butyral (PVB), produced specifically for laminating glass; overall thickness of lamination and number of sheets shall be as required to pass the UL testing for the type of ballistic exposure indicated. Units shall be labeled for rating required by the Royal Commission out of the following 4 power ratings:

TABLE 2B: BULLET-RESISTANT GLASS THICKNESSES

Power rating to resist scattered shots from:

Thickness of Bullet-resistant laminated glass

1 Medium-power small arms (MSA) 30.2 mm

2 High-power small arms (HSA) 38.1 mm

3 Super-power small arms (SSA) 44.5 mm

4 High-power rifles (HR) 50.8 mm

2. Provide protection listed by UL ABPMED as bullet resisting, with a specified power rating level as above in accordance with UL 752.

O. Laminated Burglar-Resistant Glass (Security Glass)

1. Burglar Resistant- or manual attack resistant glass shall either be a 3-ply laminate with one interlayer of polyvinyl butyral (PVB) of 1.52 mm thickness, or a 5-ply laminate with two 1.14 mm (PVB) interlayers. Thickness shall be asindicated in schedules. It shall resist manual attack by means of an axe, crowbar, pickaxe, etc. and delay access to a protected space for a short period of time. It shall comply with GANA Laminated Glass Design Guide and ASTM C1172 or an equivalent standard.

P. Insulating Glass Units

1. Insulating Glass Units (Sealed Edge Units) shall be assembled using glass types complying with ASTM C1036 and as specified in the glass schedule.


SECTION 08810 GLASS

2. All insulating glass units shall have an overall thickness of 24 mm comprising of 6 mm thick float glass for the exterior and interior panes, of the type indicated on the glass schedule, separated by hollow aluminum or stainless steel spacer tube with continuous bent corners. The spacer tube shall have a sealed plug along one or more of its straight edges and shall be perforated on the interior surface facing the airspace. It shall be filled with activated zeolite drying agent to absorb residual moisture from the cavity. The units thus filled with dry air, with - 45C dew point, shall be hermetically sealed. A primary seal formed of polyisobutylene shall be between the spacer tube wall and the adjoining glass surface. A secondary seal with either a 2-part polyurethane with UV blocking agent, or 2-part structural silicone for structural curtain wall systems shall be provided covering the unit's edge. Insulating glass units shall comply with ASTM E774 and E773, Class CBA.

3. Minimum of 12 mm wide cavity space shall be provided between panes for sealed edge units.

4. Argon gas shall not be used to fill the cavity space of insulated units. Only dehydrated air filled units shall be provided.

5. Provide U-value (k-value) as indicated in glass schedules.

6. Safety Insulating Glass Units

a) Provide safety glass for the outer pane of above specified insulating glass, being tempered or laminated as indicated in schedules and specified in the respective paragraphs above. Provide additional solar reflective-, and/or Low-E coating if and as indicated in schedules.

7. Reflective (Solar Control) Coated Glass Units

a) Provide solar reflective coating on the second surface of the above specified insulating glass. Coating shall be applied on first quality annealed or heat treated clear or tinted float glass. Provide type of coating, performance and color of glass as indicated in schedules.

8. Low-Emissivity (Low-E) Coated Glass Units

a) For insulating glass described above, provide Low-E pyrolytic or sputtered coating having an E value of 0.15, either on the second or third surface as specified in the glass schedule. The improved thermal insulating qualities shall comply with the required U-values (k-values) indicated in schedules.

b) Provide low internal reflection characteristics, if mentioned in the glass schedule.

9. Heat Mirror Type Insulating Glass Units

a) These shall be provided with a polyethylene teriphthylate polyester composite heat mirror film in between 2 stainless steel spacers and shall provide light transmission of 38% or more, shading coefficient 0.25 or less, and a maximum "U" value of 1.90 W/m2.K.


SECTION 08810 GLASS

10. Tinted Insulating Glass Units

a) These shall be 24 mm thick, with an outboard sheet of 6 mm tinted glass, separated by 12 mm desiccant air space, and an inboard sheet of 6 mm clear glass. Tint color shall be in accordance with glass schedule.

11. Sound Insulating Glass Units

a) Provide above specified insulating glass units with sound insulation as indicated in schedules. Glass with sound insulating requirements based on ASTM E413 (STC) shall be tested and labeled by an independent laboratory according to ASTM E90. Acoustic Insulated Glass Units shall be provided with manufacturers special acoustic edge seal or aluminum with bent and soldered corners.

Q. Bent Glass

1. Bent Glass shall be float type, annealed, clear or tinted glass of specified thickness and color, and shall be curved-tempered to the radius specified on the Contract Drawings. If specified, laminated glass with 0.38 mm thick PVB interlayer shall be used. Bent glass shall comply with ASTM C1036, ASTM C1048 and with ANSI Z97.1.

R. Fire-Rated Glass

1. Laminated ceramic glazing material shall be in the form of two lites of clear ceramic glazing material laminated together to produce a laminated lite of 8 mm nominal thickness, polished on both surfaces, transparent, and weighing 19.5 kg/m2. Fire-protection rating shall be as indicated for the assembly in which the glazing material is installed, and shall be permanently labeled by a testing and inspecting agency acceptable to the Royal Commission.

2. Intumescent Interlayer Laminated Glass

a) Laminated glass with intumescent interlayers shall be in the form of multiple lites of Condition A, Type I, Class 1, Kind FT float glass laminated with intumescent interlayers. Fire-protection rating shall be as indicated for the assembly in which the glazing material is installed, and shall be permanently labeled by a testing and inspecting agency acceptable to the Royal Commission. Provide fire-resistant glass for indicated resistance time as RE-glass or REI-glass tested according to referenced standards.

S. Mirrored Glass

1. Mirrored Glass shall be clear plate (or float) glass, Quality q4, 6 mm thick except as otherwise indicated, with silver coating and electrolytic copper protective coating sealed with 50 microns thick paint surface coating. Mirror shall have polished edge.

2. Adhesive shall be waterproof and of a type recommended by the glass manufacturer to bond mirror glass to substrate


SECTION 08810 GLASS

T. Transparent Mirror (One-Way-Vision Glass)

1. Glass used for transparent mirror shall comply with ASTM C1036, Type I, Class 1, Quality q2 or Class 3, Quality q3 or specified tint. Nominal thickness of glass shall be 6 mm, unless otherwise indicated.

2. One face shall be coated with a hard adherent reflective film of chromium or with pyrolytic coating.

3. Visible light transmittance shall be 8% 2%.

4. Visible reflectance shall be 60% 5%.

5. Light ratio on mirror side shall be greater than or equal to 10 and on observer side it shall be less than or equal to 1.

6. Transparent mirror shall be assembled with its coating covered and protected with a layer of clear glass not less than 3 mm thick.

7. Interface of glass shall be cleaned prior to assembly.

8. Tape edge to seal interface and hold panes together.

2.04

2.05

2.06

GLAZING ACCESSORIES

A. Refer to SECTION 08850 Glazing Accessories.

GLAZING COMPOUNDS

A. Refer to SECTION 08850 Glazing Accessories.

FABRICATION OF GLASS

A. General

1. Glass and other glazing products shall be fabricated in sizes required to glaze openings indicated on project drawings, with edge and face clearances, edge and surface conditions, and bite complying with written instructions of product manufacturer and referenced glazing standard, to comply with system performance requirements.

B. Heat-Strengthened Glass

1. Cut float glass materials to indicated sizes and provide cut-outs and holes, if indicated, before heat strengthening.

2. Heat strengthen float glass materials in accordance with ASTM C1048, Kind HS.


SECTION 08810 GLASS

C. Tempered Glass

1. Cut float glass materials to indicated sizes and provide cut-outs and holes, if indicated, before tempering.

2. Fully temper float glass materials in accordance with ASTM C1048, Kind FT.

D. Laminated Glass

1. Cut float glass materials to indicated sizes and provide cut-outs and holes, if indicated, before heat strengthening or tempering.

2. Heat strengthened or temper float glass materials in accordance with ASTM C1048, Kind HS or FT.

3. Laminate plastic interlayer between glass panes in accordance with ASTM C1172.

4. Laminated glass to conform to GANA Laminated Glass Design Guide and requirements of ANSI Z97.1.

E. Sealed Insulating Glass Units

1. Fabricate units in accordance with ASTM E774, Class CBA, with components and performance characteristics specified in the glass schedule. The two panes of glass shall be hermetically dual sealed meeting requirements of ASTM E773.

F. Monolithic Spandrel Glass Units

1. Heat strengthened float glass materials in accordance with ASTM C1048, Kind HS or temper float glass materials in accordance with ASTM C1048, Kind FT.

2. Apply ceramic fused frit to indicated glass surface.

3. Apply silicone polyester enamel opacifier coating to glass surface indicated.

G. Sealed Insulating Spandrel Glass Units

1. Heat strengthened float glass materials in accordance with ASTM C1048, Kind HS or temper float glass materials in accordance with ASTM C1048, Kind FT.

2. Fabricate units in accordance with specified requirements for sealed insulating glass units.

3. Apply ceramic fused frit to indicated glass surface.

4. Apply silicone polyester enamel opacifier coating to glass surface indicated.


SECTION 08810 GLASS

2.07 TOLERANCES

A. Tolerances for any glass product shall not exceed tolerances given in the referenced standards.

B. Tolerances for insulation glass units shall not vary from the nominal by more than the following:

1. Thickness

a) For two panes of glass each of 6 mm or less plus air space r 1 mm;

b) For two panes of glass each of over 6 mm plus air space r 1.5 mm;

2. Length

a) Up to 3 m2 : + 3 mm - 0 mm

b) 3 to 8.5 m2 : + 4.5 mm - 0 mm

c) Over 8.5 m2 : + 6 mm - 0 mm


SECTION 08810 GLASS

PART 3 EXECUTION

3.01 EXAMINATION

A. Review of the glazing procedure and schedule, including the method of delivering and handling glass, applying glazing materials, installing gaskets and removable stops, shall be the responsibility of the Contractor.

B. The Contractor shall examine all surfaces to receive the parts of the work specified herein. Examine the framing and glazing channel surfaces, backing, removable stop design, and the conditions under which the glazing is to be performed.

C. Framing glazing shall be examined for compliance with the following:

1. Manufacturing and installation tolerances, including those for size, squareness, and offsets at corners.

2. Presence and functioning of weep system.

3. Minimum required face or edge clearances.

4. Effective sealing between joints of glass-framing members.

D. The Contractor shall examine doors and windows where work of this Section will be installed.

E. The Contractor shall verify that wash down of adjacent masonry is completed prior to erection of glass and glazing units to prevent damage to glass and glazing units by cleaning materials.

F. Do not proceed with the glazing until unsatisfactory conditions have been corrected.

G. Application or installation of materials shall constitute acceptance of the related construction.

3.02 STANDARDS AND PERFORMANCE

A. Watertight and airtight installation of each piece of exterior glass is required. Each installation must withstand normal regional temperature changes, wind loading, impact loading (for operating sash and doors) without failure of any kind including loss or breakage of glass, failure of sealants or gaskets to remain watertight and air-tight, deterioration of glazing materials and other defects in the work.

B. The Contractor shall protect glass from edge and surface damage during handling, installation, and subsequent construction.

C. Glazing channel dimensions as shown are intended to provide for necessary minimum bite on the glass, minimum edge clearance and adequate sealant thicknesses, with reasonable tolerances. The glazier is responsible for correct glass size for each opening, within the tolerances and necessary dimensions established.


SECTION 08810 GLASS

D. The Contractor shall inspect each piece of glass immediately before installation, and eliminate any, which have observable edge damage or face imperfections.

E. Appearance of each series of lites shall be unified by setting each piece to match others as nearly as possible. Inspect each piece and set with pattern, draw and bow oriented in the same direction as other pieces.

3.03 PREPARATION

A. The Contractor shall identify glass furnished by type when it is delivered to premises and verify that glass complies with requirements in schedules for type and coating.

B. Glass sizes shall be determined from actual field measurements of frames to receive glass. The Contractor shall make proper allowances for expansion, contraction and movement and provide for proper bedding and bite.

C. The Contractor shall clean the glazing channel, or other framing members to receive glass of all obstructions and deleterious substances which might impair the work, immediately before glazing. Coatings which are not firmly bonded to the substrate or which may cause adhesion failure or interfere with bond of sealant shall be removed. Lacquer shall be removed from metal surfaces wherever elastomeric sealants are to be applied. The Contractor shall clean contact surfaces with solvent and wipe dry.

D. Porous glazing channels or recesses shall be sealed with substrate compatible primer or sealer.

E. The Contractor shall shop fabricate and cut glass with smooth, straight edges of full size required by openings to provide GANA recommended edge clearances.

F. The Contractor shall verify that components used are compatible.

G. For sealant glazing, glazing surfaces shall be prepared in accordance with FGMA Sealant Manual.

H. The Contractor shall prime surfaces scheduled to receive sealants, as determined by pre-construction sealant-substrate testing.

3.04 INSTALLATION

A. These installation procedures shall be read in conjunction with the detailed glazing procedures covered under SECTION 08850.

B. The Contractor shall:

1. Employ glaziers who have had previous experience with the materials and systems being applied.

2. Use tools and equipment recommended by the glass manufacturer.

3. Measure all openings and cut glass accurately to fit each opening with minimum edge clearance. If glass is to be cut to size at project site deliver each piece to project at least 50 mm larger (in both dimensions) than required,


SECTION 08810 GLASS

so as to facilitate the cutting of clean-cut edges without the necessity of seaming or nipping. Tempered, heat strengthened, or coated glass shall not be cut, seamed, nipped, or abraded at the job site.

4. Comply with manufacturer's instructions for final nipping of surface immediately before application of primer and glazing compounds or tapes. Wipe metal surfaces with solvent.

5. Protect glass edges from damage during handling and installation. Inspect each piece of glass immediately before installation. Damaged glass shall be removed from project site and legally disposed of off site. Damaged glass is glass with significant impact damage of edges, scratches or abrasions of faces or other imperfections that, when installed, could weaken glass and impair performance and appearance. Such damaged pieces shall not be installed.

6. Locate setting blocks at the quarter points of sill rabbet, but no closer than 152 mm to corners of glass. Use blocks of proper size to support the glass in accordance with manufacturer's recommendation. Set blocks in thin course of the heel-bead compound, if any.

7. Provide spacers of proper size for all glass sizes larger than 1270 mm, to separate glass from stops, except where continuous gaskets or tape are required. Locate spacers 914 mm on center maximum inside and out, with a minimum of 2 spacers per edge of glass. Spacers shall be located directly opposite each other on both inside and outside faces of glass. Provide 3 mm minimum bite of spacers on glass and use thickness equal to sealant or compound thickness shown, except with sealant tape use thickness slightly less than final compressed thickness of tape. Edge pressures stipulated by glass manufacturers for installing glass lites shall not be exceeded.

8. Provide for a minimum of 9 mm bite of rabbet on glass at all 4 edges.

9. Provide edge blocking where indicated or needed to prevent glass lites from moving sideways in glazing channel, as recommended in writing by glass manufacturer, and according to requirements in referenced glazing publications.

10. Set glazing without bending, twisting, or forcing of units.

11. Ascertain that glass is not allowed to rest on or contact any framing member.

12. Set glass in a manner which produces greatest possible degree of uniformity in appearance. Face all glass, which has dissimilar faces, with matching faces in the same direction. Set all glass with bow (if any) to exterior.

13. Ensure that glazing materials from different sources shall not be used in the same joint system unless the manufacturer of each material has stated in writing that this material is fully compatible with the other material.

14. Use masking tape or other suitable protection to limit coverage of glazing materials to the surfaces intended for sealant.

15. Comply with manufacturer's recommendations for glass, sealants, gaskets and other glazing materials, except where more stringent requirements are


SECTION 08810 GLASS

indicated, including those of referenced Standards.

16. Butt of lap ends of sealant tape in accordance with the manufacturer's recommendation.

17. Tool exposed surfaces of glazing materials to provide a slight mesh away from the glass. Install exposed tapes and gaskets with a slight protrusion above stops in the final compressed condition.

18. Clean excess sealant or compound from glass and framing members immediately after application, using solvents or cleaners recommended by the manufacturer.

C. Doors and windows to be glazed shall be shop- or field-glazed as indicated with quality and type of glass specified. For field glazing, the Contractor shall glaze doors and operable sash, in a securely fixed or closed and locked position, until sealant, glazing compound, or putty has thoroughly set.

D. The different types of glass shall be installed as specified below:

1. Patterned Glass

a) Install units with one patterned surface with smooth surface on the weather side.

b) Install units in interior partitions with pattern in same direction in all openings.

2. Wired Glass

a) The wire pattern shall match in line with that of adjacent panes.

3. Tempered Glass

a) Install with roller distortions in horizontal position unless otherwise directed.

4. Transparent (One-Way Vision Glass) Mirror

a) Use continuous channel glazing gasket.

5. Laminated Glass

a) Tape edges to seal interlayer and protect from glazing sealants.

b) Do not use putty or glazing compounds.

6. Insulating Glass Units

a) Glaze strictly in compliance with glass manufacturer's written instructions.

b) When glazing gaskets are used, they shall be of sufficient size and


SECTION 08810 GLASS

depth to cover glass seal or metal channel frame completely.

c) Do not use putty or glazing compounds.

d) Do not grind, nip, cut, or otherwise alter edges and corners of fused glass units after shipping from factory.

e) Install with tape or gun-able sealant in wood sash.

7. Fire-Resistant Glass

a) Wire Glass

1) Glaze in accordance with NFPA 80.

b) Other Fire Resistant Glass

1) Glaze in accordance with UL design requirements.

8. Bullet-Resisting Material

a) Glaze as recommended by manufacturer, using glazing material which will permit expansion and contraction of the bullet resistive material in the frame.

E. Gasket Glazing

1. Compression gaskets shall be fabricated in lengths recommended by gasket manufacturer to fit openings exactly, with stretch allowance during installation.

2. Soft compression gasket shall be inserted between glass and frame or fixed stop, to secure it in place with joints miter cut and bonded together at corners.

3. Glass lites shall be centered in openings on setting blocks and pressed firmly against soft compression gasket by inserting dense compression gaskets formed and installed to lock in place against faces of removable stops. Gasket applications shall be started at corners and worked toward centers of openings. Gaskets shall be compressed to produce a weather-tight seal without developing bending stresses in glass. Gasket joints shall be sealed with sealant recommended by gasket manufacturer.

4. Gaskets shall be installed to protrude past face of glazing stops.

3.05 INSPECTION

A. All-Glass Scratch Inspection

1. Precautions shall be taken to avoid scratching.

2. Scratches smaller than 50 mm shall be allowed in any area.

3. Scratches longer than 50 mm shall be allowed only within 75 mm of an edge.


SECTION 08810 GLASS

4. Scratches longer than 50 mm shall not be allowed in primary vision area.

5. Large clusters of scratches or closely spaced scratches shall not be allowed.

B. Coated Glass Pinhole Inspection

1. At viewing distance of 1800 mm, pinholes greater than 1.6 mm in diameter shall not be allowed.

2. Large clusters or close spacing of smaller pinholes shall not be allowed in any area through which a person would normally look.

3. Clusters shall be allowed out of the normal viewing area.

4. When viewed against a bright, uniform background at a distance of 3000 mm or more, color, reflectance, and transmission may vary slightly within the acceptable limits set by the Royal Commission.

C. Spandrel Glass Reflectance and Scratch Inspection

1. At a distance of 4500 mm or more, under natural daylight conditions, color and reflectance may vary slightly when viewed against a dark, uniform background, but be within the acceptable limits set by the Royal Commission.

2. Under these same conditions, pinholes and scratches (where viewed in reflectance) shall be considered acceptable if not visible.

3.06 REPLACEMENT, PROTECTION AND CLEANING

A. The Contractor shall protect glass from breakage immediately upon installation. Crossed streamers of ribbons shall be used, suitably attached to framing and held free of the glass. Warning markings with materials such as lime chalk, soap, marking pen, etc. which may stain glass, glazing material or frames shall not be applied directly on the glass surface, whether coated or non-coated. Do not apply tape of any kind. To indicate the presence of glass in hazardous locations, signs or notices shall be placed.

B. Non-permanent labels shall be removed and surfaces shall be cleaned.

C. Glass shall be protected from contact with contaminating substances resulting from construction operations, including weld splatter, sand blasting, fire proofing concrete spatter, paint, etc. If, despite such protection, contaminating substances do come into contact with glass, they shall be removed immediately, in accordance with glass manufacturers recommendations.

D. Glass surfaces adjacent to or below exterior concrete and other masonry surfaces shall be examined at frequent intervals during construction, but not less than once a month, for build-up of dirt, scum, alkaline deposits, or stains. These shall be removed as recommended by glass manufacturer.

E. The Contractor shall remove and replace glass which is broken, cracked, chipped, abraded or damaged in any way from any source, including natural causes, vandalism and accidents during the construction period.


SECTION 08810 GLASS

F. The Contractor shall maintain glass in a reasonably clean condition during construction, so that it will not be damaged by corrosive action and will not contribute (by wash-off) to the deterioration of glazing materials and other work.

G. Glass shall be washed and polished on both exposed surfaces in each area of project not more than 4 days before date scheduled for inspections that establish date of Substantial Completion. The Contractor shall comply with instructions and recommendations of the glass manufacturer and glazing materials manufacturer for cleaning in each case.

END OF SECTION


Date post:	17-Oct-2015
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Section 08810 Glass Rev 0

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