1. SCOPE……………………………………………………………….2. REFERENCES 3. DEFINITIONS 4. GENERAL …………………………………………………………..4.1 Performance Requirements 4.2 Submittals 4.3 Quality Assurance……………………………………………4.4 Delivery, Storage and Handling 4.5 Project Conditions 4.6 Warranty…………………………………………………………5. PRODUCTS
5.1 Glass Materials ……………………………………………….5.2 Fire Rated Glazing Products 5.3 Glazing Gaskets 5.4 Miscellaneous Glazing Materials………………………..5.5 Fabrication of Glass and Other Glazing Products 6. EXECUTION 6.1 Examination ……………………………………………………6.2 Preparation 6.3 Glazing, General 6.4 Gasket Glazing………………………………………………..6.5 Inspection 6.6 Protection and Cleaning 6.7 Glass Schedule……………………………………………….6.8 Breakage
1. Scope
This specification covers glass and glazing for windows, doors, glazed entrances, interior side lites, sloped
glazing, mirrors, and fire rated glazing.
2. References
Reference is made in this specification to the following documents. The latest issues, amendments, and
supplements to these documents shall apply unless otherwise indicated.
SABIC Engineering Standards (SES)
A15-S01 Finish Door Hardware and Weather-stripping
American National Standards Organization (ANSI)
Z97.1 Safety Glazing Materials Used in Buildings
American Society for Testing of Materials (ASTM)
C 864 Specification for Dense Elastomeric Compression Seal Gaskets, Setting Blocks, and Spacers
C 1036 Specification for Flat Glass
C 1048 Specification for Heat Treated Flat Glass – Kind HS, Kind FT Coated and Uncoated Glass
C 1115 Specification for Dense Elastomeric Silicone Rubber Gaskets and Accessories
C 1172 Specification for Laminated Architectural Flat Glass
E 773 Test Method for Accelerated Weathering of Sealed Insulating Glass Units
E 774 Specification for the Classification of the Durability of Sealed Insulating Glass Units
E 1300 Practice for Determining Load Resistance of Glass in Buildings
Flat Glass Marketing Association (FGMA)
Glazing Manual
National Fire Protection Association (NFPA)
80 Standard for Fire Doors and Fire Windows
3. Definitions
For the purpose of understanding this specification, the following definitions apply.
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 manufacturer’s written instructions. Defects include peeling, cracking,
and other indications of deterioration in metallic coating.
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 manufacturer’s written instructions. Evidence of failure is the
obstruction of vision by dust, moisture, or film on interior surfaces of glass.
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 manufacturer’s written instructions. Defects include edge separation,
delamination, materially obstructing vision through glass, and blemishes exceeding those allowed by
referenced laminated-glass standard.
EPDM. Ethylene propylene diene terpolymer.
Interspace. Space between lites of an insulating-glass unit that contains dehydrated air or a specified gas.
4. General
4.1 Performance Requirements
4.1.1 Glazing systems shall be capable of withstanding normal thermal movement and wind 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.
4.1.2 Glass thicknesses indicated on drawings are minimums and are for detailing only. Glass thicknesses
shall be confirmed by analyzing project loads and in-service conditions. 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 E 1300.
4.2 Submittals
The following shall be submitted to SABIC:
a. Product data for each glass product and glazing material indicated on drawings
b. Samples for the following products, in the form of 300 mm squares:
(i) Each color of tinted float glass
(ii) Each type of patterned glass
(iii) Coated vision glass
(iv) Ceramic-coated spandrel glass
(v) Each pattern and color of ceramic-coated vision glass
(vi) Wired glass
(vii) Fire-resistive glazing products
(viii) Each type of laminated glass with colored interlayer
(ix) Insulating glass for each designation indicated
(x) For each color (except black) of exposed glazing sealant indicated
c. Glazing schedule, using same designations indicated on drawings for glazed openings, listing
glass types and thicknesses for each size opening and location
d. Product certificates, signed by manufacturers of glass and glazing products, certifying that
products furnished comply with requirements of this specification
4.3 Quality Assurance
4.3.1 Installer shall have completed glass installations with successful in-service performance similar in
material, design, and extent to that indicated for the project.
4.3.2 Fire-rated door assemblies shall comply with NFPA 80, and shall be listed and labeled by a testing
and inspecting agency acceptable to SABIC. Glazing in these assemblies shall have fire-rated glazing.
4.3.3 Fire-rated window assemblies shall comply with NFPA 80, and shall be listed and labeled by a
testing and inspecting agency acceptable to SABIC. Glazing in these assemblies shall have fire-rated
glazing.
4.3.4 Safety glass shall comply with testing requirements in ANSI Z97.1. Safety glass shall be
permanently marked with certification label of Safety Glazing Certification Council or another certification
agency acceptable to SABIC.
4.3.5 Float and sheet glass shall comply with ASTM C 1036 for annealed glass, and ASTM C 1048 for
heat strengthened and full tempered glass.
4.3.6 Heat-treated glass shall be in accordance with ASTM C 1048. 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.
4.3.6.1 Heat-treated glass shall be fabricated with roll ripple (surface waves) in vertical direction.
4.3.6.2 Heat-treated units shall be fabricated with permanent label in consistent location at either lower
corner.
4.3.7 Insulating glass units shall be fabricated to meet or exceed requirements of ASTM E 773 and E 774.
4.3.8 Laminated glass shall comply with ASTM C 1172.
4.3.9 Installation and materials shall comply with FGMA Glazing Manual.
4.4 Delivery, Storage and Handling
4.4.1 Glazing materials shall be protected according to manufacturer’s recommendations, and as needed
to prevent damage to glass and glazing materials from condensation, temperature changes, direct
exposure to sun, and other causes.
4.4.2 Glass and glazing materials shall be in perfect condition at time of SABIC representative
acceptance.
4.5 Project Conditions
Glazing shall not be undertaken when ambient and substrate temperature conditions are outside limits
permitted by glazing material manufacturers, and when glazing channel substrates are wet from rain, frost,
condensation, or other causes.
4.6 Warranty
The following warranties shall be given:
4.6.1 Manufacturer’s special warranty on coated-glass products, agreeing to furnish replacements for
those coated-glass units that deteriorate within 10 years from date of project completion.
4.6.2 Manufacturer’s special warranty on laminated glass, agreeing to furnish replacements for
laminated-glass units that deteriorate within 10 years from date of project completion.
4.6.3 Manufacturer’s special warranty on insulating glass, agreeing to furnish replacements for
insulating-glass units that deteriorate within 10 years from date of project completion.
5. Products
5.1 Glass Materials
See glass schedule in drawings for specific glass to be used in project. Glass thickness shall be verified,
as specified in 4.1. See ASTM C 1036 for glass designation.
5.1.1 Sheet glass shall meet the following requirements:
a. Clear glass shall be 6 mm float, Type I, Class 1, quality Q4
b. Clear, tempered glass shall be 6 mm float, Type I, Class 1, quality Q3
c. Tinted glass shall be 6 mm float, Type I, Class 3, quality Q4. Tint color shall be in accordance
with glass schedule.
d. Tinted, tempered glass shall be 6 mm float, Type I, Class 3, quality Q3. Tint color shall be in
accordance with glass schedule.
e. Wire glass shall be 6 mm thick, square pattern, Form 1, quality Q8, Mesh m2
, conforming to
ASTM C 1036
f. Spandrel glass shall be 6 mm thick heat strengthened float glass, with a heat-fused ceramic
backing. Spandrel panel color shall be in accordance with glass schedule.
g. Annealed glass shall be 6 mm thick. Tint color shall be in accordance with glass schedule.
h. Frosted glass shall be 6 mm thick float, 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.
i. Laminated glass shall be 6 mm thick and consist of 2 equally thick tempered glass panes
laminated together with a clear 1.5 mm thick plastic interlayer. Where tinted laminated glass is
specified, both panes shall be tinted, and the plastic interlayer shall be clear.
j. Reflective glass shall be 6 mm thick, tempered, Type 1, Class 2, quality Q3 with reflective coating
on interior (Number 2) face as viewed from exterior. Tint color shall be in accordance with glass
schedule.
5.1.2 Insulating glass shall meet the following requirements:
a. Tinted insulating glass shall be 25 mm thick, with an outboard sheet of 6 mm tinted glass,
separated by 13 mm desiccant air space, and an inboard sheet of 6 mm clear glass. Tint color shall be
in accordance with glass schedule.
b. Tinted, tempered insulating glass shall be 25 mm thick, with an outboard sheet of 6 mm tinted
tempered glass, separated by 13 mm desiccant air space, and an inboard sheet of 6 mm clear
tempered glass. Tint color shall be in accordance with glass schedule.
5.1.3 Glass doors and sidelights shall meet the following requirements:
a. They shall be 13 mm thick tinted tempered float glass. Tint color shall be in accordance with
glass schedule.
b. Doors shall have top and bottom rails full width
c. Frames shall be fabricated from hollow extruded sections of 6063-T5 aluminum alloy. Aluminum
shall be anodized, to match aluminum window framing selected by architect/engineer and SABIC.
d. Door manufacturer shall provide standard locks and strikes, exit device, door stop, door portion
of top pivot, and floor closer of the size required for the door size
e. Finish hardware supplier shall provide the cylinder for lockset and frame portion of the top pivot.
See SES A15-S01.
f. Setting blocks, spacers, and clips shall be provided as necessary to meet the framing
manufacturer’s requirements and recommendations of the FGMA Glazing Manual, unless otherwise
required by the glass manufacturer
5.1.4 Full height mirrors shall meet the following requirements:
a. Mirror glass shall be 6 mm thick, quality Q4, clear float, full electrolytically plated coating,
polished edge. A 15-year guarantee shall be provided against plating spoilage.
b. Molding shall be J-Molding, polished aluminum. It shall be sized to receive and hold 6 mm thick
plate mirror.
c. Fasteners shall be of the type recommended by the molding manufacturer to fasten molding to
gypsum wallboard over metal studs
d. Adhesive shall be waterproof and of a type recommended by the glass manufacturer to bond
mirror glass to substrate
5.1.5 Insulated sloped glazing shall be 25 mm thick. The outer sheet shall be tinted laminated glass, and
the inner sheet shall be clear laminated glass. Tint color shall be in accordance with glass schedule.
Sheets shall be separated by a 13 mm desiccant interspace. All glass shall be heat strengthened or
tempered, depending on wind and snow loading, and lite size.
.2 Fire Rated Glazing Products
5.2.1 Laminated ceramic glazing material shall be ‘FireLite Plus’ distributed by Technical Glass Products,
or SABIC approved equal, subject to compliance with requirements. Product 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 SABIC.
5.2.2 Laminated glass with intumescent interlayers shall be ‘PyroStop’ distributed by Technical Glass
Products, or SABIC approved equal, subject to compliance with requirements. Product shall be in the form
of multiple lites of Condition A (uncoated surfaces), Type I (transparent glass, flat), Class 1 (clear), Kind FT
(fully tempered) 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 SABIC.
5.3 Glazing Gaskets
Glass shall be totally dry glazed and shall be provided with compression gaskets. Compression gaskets
shall be molded or extruded gaskets of EPDM, complying with ASTM C 864, or silicone compression
gaskets complying with ASTM C 1115, and of profile and hardness required to maintain watertight seal.
5.4 Miscellaneous Glazing Materials
The following miscellaneous materials shall be required, which shall be of material, size, and shape that
complies with referenced glazing standards, requirements of manufacturers of glass and other glazing
materials for application indicated, and shall have a proven record of compatibility with surfaces contacted
in installation.
5.4.1 Cleaners, Primers, and Sealers. These shall be of types recommended by sealant or gasket
manufacturer.
5.4.2 Setting Blocks. Elastomeric material with a Shore A durometer hardness of 85, 5. Setting blocks
shall be 1.6 mm less than full rabbet width, and high enough to provide minimum edge clearance for glass.
5.4.3 Spacers. Elastomeric blocks or continuous extrusions with a Shore A durometer hardness required
by glass manufacturer to maintain glass lites in place for installation indicated.
5.4.4 Edge Blocks. Elastomeric material of hardness required by glass manufacturer to limit glass lateral
movement (side walking).
5.4.5 Tapes. Tapes shall be dense neoprene gasket with a Shore ‘A’ durometer hardness of 65-75 as
required for specific glazing.
5.4.6 Glazing Compounds. These shall be as recommended by the glass manufacturer for the intended
application. In no case shall glazing be performed with any oleo-resinous or oil-base compounds, nor shall
any glazing sealant be diluted or thinned with any solvent.
5.5 Fabrication of Glass and Other Glazing Products
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.
6. Execution
6.1 Examination
6.1.1 Framing glazing shall be examined for compliance with the following:
a. Manufacturing and installation tolerances, including those for size, squareness, and offsets at
corners
b. Presence and functioning of weep system
c. Minimum required face or edge clearances
d. Effective sealing between joints of glass-framing members
6.1.2 Installation shall only be continued after unsatisfactory conditions have been corrected.
6.2 Preparation
Glazing channels and other framing members receiving glass shall be cleaned immediately before
glazing. Coatings not firmly bonded to substrates shall be removed.
6.3 Glazing, General
6.3.1 Contractor shall comply with combined written instructions of manufacturers of glass, sealants,
gaskets, and other glazing materials, unless more stringent requirements are indicated, including those in
referenced glazing publications.
6.3.2 Glazing channel dimensions, as indicated on drawings, provide necessary bite on glass, minimum
edge and face clearances, and adequate sealant thicknesses, with adequate tolerances. These shall be
adjusted as required by project conditions during installation.
6.3.3 Glass edges shall be protected from damage during handling and installation. Damaged glass shall
be removed from project site and legally disposed of off site. Damaged glass is glass with edge damage or
other imperfections that, when installed, could weaken glass and impair performance and appearance.
6.3.4 Setting blocks shall be installed in sill rabbets, sized and located to comply with referenced glazing
publications, unless otherwise required by glass manufacturer. Blocks shall be set in thin course of
compatible sealant suitable for heel bead.
6.3.5 Edge pressures stipulated by glass manufacturers for installing glass lites shall not be exceeded.
Spacers shall be provided as follows for glass lites where the length plus width is larger than 1270 mm:
a. Spacers shall be located directly opposite each other on both inside and outside faces of glass.
The correct size and spacing to preserve required face clearances shall be installed, unless gaskets
and glazing tapes are used that have demonstrated ability to maintain required face clearances and to
comply with system performance requirements.
b. Provide 3 mm minimum bite of spacers on glass and use thickness equal to sealant width. With
glazing tape, use thickness slightly less than final compressed thickness of tape.
6.3.6 Edge blocking shall be provided 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.
6.4 Gasket Glazing
6.4.1 Compression gaskets shall be fabricated in lengths recommended by gasket manufacturer to fit
openings exactly, with stretch allowance during installation.
6.4.2 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.
6.4.3 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 weathertight seal without developing bending
stresses in glass. Gasket joints shall be sealed with sealant recommended by gasket manufacturer.
6.4.4 Gaskets shall be installed to protrude past face of glazing stops.
6.5 Inspection
6.5.1 All-Glass Scratch Inspection:
a. Precautions shall be taken to avoid scratching
b. Scratches smaller than 50 mm shall be allowed in any area
c. Scratches longer than 50 mm shall be allowed only within 75 mm of an edge
d. Scratches longer than 50 mm shall not be allowed in primary vision area
e. Large clusters of scratches or closely spaced scratches shall not be allowed
6.5.2 Coated Glass Pinhole Inspection:
a. At viewing distance of 1800 mm, pinholes greater than 1.6 mm in diameter shall not be allowed b. Large clusters or close spacing of smaller pinholes shall not be allowed in any area through
which a person would normally look
c. Clusters shall be allowed out of the normal viewing area
d. When viewed against a bright, uniform background at a distance of 3000 mm or more, color,
reflectance, and transmission may vary slightly and be considered acceptable
6.5.3 Spandrel Glass Reflectance and Scratch Inspection:
a. 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 and be considered acceptable
b. Under these same conditions, pinholes and scratches (where viewed in reflectance) shall be
considered acceptable if not visible
6.6 Protection and Cleaning
6.6.1 Exterior glass shall be protected from damage immediately after installation by attaching crossed
streamers to framing held away from glass. Markers shall not be applied to glass surface. Nonpermanent
labels shall be removed and surfaces shall be cleaned.
6.6.2 Glass shall be protected from contact with contaminating substances resulting from construction
operations, including weld splatter. If, despite such protection, contaminating substances do come into
contact with glass, they shall be removed immediately, in accordance with glass manufacturer’s
recommendations.
6.6.3 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.
6.6.4 During construction period, glass that is broken, chipped, cracked, abraded, or damaged by natural
causes, accidents, or vandalism, shall be removed and replaced.
6.6.5 Glass shall be washed on both exposed surfaces in each area of project not more than four days
before date scheduled for inspections that establish date of Substantial Completion. Glass shall be
washed as recommended by glass manufacturer.
6.7 Glass Schedule
See project drawings for glass schedule.
6.8 Breakage
Glazing broken during construction and until final acceptance by SABIC, shall be removed and replaced.