B08_Attach_156_REV_1st_Bank_088000_Glass_and_Glazing_0007.pdf

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PMIS 245589 GLASS AND GLAZING

SECTION 08 80 00 A - GLASS AND GLAZING

1.1 SUMMARY: The work of this Section includes, but is not limited to, the following:

A. New insulated, tempered, low-e glass for curtain wall and storefront installation

a. Assume a ceramic-fritted dot pattern will be required for bird protection. Pattern to be selected by the Contracting Officer.

B. New insulated reflective spandrel glass for curtain wall installation

a. Assume a ceramic-fritted dot pattern will be required for bird protection. Pattern to be selected by the Contracting Officer.

C. New insulated, tempered, low-e glass for entrance door installation

a. Assume a ceramic-fritted dot pattern will be required for bird protection. Pattern to be selected by the Contracting Officer.

D. New laminated glass for interior doors and glazed openings

E. New tempered glass for interior door transoms

F. Fire-rated glass products are specified in Section 08 41 23, “Fire-Rated Glass and Framing Systems.”

1.2 RELATED WORK

A. Division 1 requirements

B. Section 07 92 00, “Joint Sealants”

C. Section 08 14 33, “Stile and Rail Wood Doors”

D. Section 08 41 23, “Fire-Rated Glass and Framing Systems”

E. Section 08 44 13, “Glazed Aluminum Curtain Wall”

1.3 REFERENCE STANDARDS

A. “Reducing Bird Collisions with Buildings and Building Glass – Best Practices”; US Fish and Wildlife Service, Division of Migratory Bird Management, February 2021.

1.4 SUBMITTALS

A. Product data: Provide manufacturer’s product data for all new glass products. Product data shall include light and heat transmission data and testing reports as applicable to demonstrate compliance with these specifications and referenced standards.

1. New insulated, laminated, low-e glass

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2. New insulated, tempered, low-e glass

3. New reflective insulated spandrel glass

4. New tempered glass

5. New laminated glass

B. Glazing Schedule: List glass types and thicknesses for each size opening and location. Use same designations indicated on Drawings.

C. Pattern Samples: Provide glass samples featuring manufacturer’s standard fritted patterns, complying with the referenced standard, for selection by the Contracting Officer.

D. Glass Samples: Provide 12-in. x 12-in. samples of the following:

1. New insulated, laminated low-e glass with selected pattern.

2. New insulated, tempered low-e glass with selected pattern.

3. New reflective insulated spandrel glass with selected pattern.

1.5 QUALITY ASSURANCE

A. Glazing manufacturer shall be a firm specializing in the production and fabrication of architectural glass of the types specified for this project and shall have completed at least three projects of similar scope and scale in the previous five years.

1.6 PRECONSTRUCTION TESTING

A. Preconstruction Adhesion and Compatibility Testing: Test each glass product, tape sealant, gasket, glazing accessory, and glass-framing member for adhesion to and compatibility with elastomeric glazing sealants.

1. Testing is not required if data are submitted based on previous testing of current sealant products and glazing materials matching those submitted.

1.7 WARRANTY

A. Manufacturer's Special Warranty for Laminated Glass: Manufacturer agrees to replace laminated-glass units that deteriorate within specified warranty period. Deterioration of laminated glass is defined as defects developed from normal use that are not attributed to glass breakage or to 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.

1. Warranty Period: 10 years from date of Substantial Completion.

B. Manufacturer's Special Warranty for Insulating Glass: Manufacturer agrees to replace insulating-glass units that deteriorate within specified warranty period. Deterioration of insulating glass is defined as

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failure of hermetic seal under normal use that is not attributed to glass breakage or to 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.

1. Warranty Period: 10 years from date of Substantial Completion.

1.8 DELIVERY, STORAGE AND HANDLING

A. Deliver glass units in manufacturer’s protective packaging with product identification and part numbers clearly visible thereon. Remove protective wrappings only as required to facilitate installation.

B. Deliver glass units for curtain walls and storefronts for immediate installation. Coordinate a safe short-term storage location with the Contracting Officer’s representative and other trades as required. Store units in such a manner as to minimize handling for installation.

1.9 PROJECT CONDITIONS

A. The Contractor shall protect existing assemblies to remain during the installation of glass and glazing work. Repair any damage to exposed surfaces and assemblies at no additional cost to the Contracting Officer. At a minimum, the Contractor shall:

1. Protect exposed surfaces of aluminum curtainwall and storefront framing from abrasion and scratches during glass installation. Do not allow glazing sealants to stain aluminum surfaces.

2. Protect stair assemblies from damage during installation of adjacent spandrel glass.

B. Coordinate glass and glazing installation with other trades affected by the work of this section including, but not limited to, curtainwall and storefront framing, sealants, stair installation and flashing work. Coordinate spandrel glass installation with stair installation to ensure proper installation and finishing of stair trim components.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Insulating, Tempered, Low-e Decorative Vision Glass and Insulating Low e Decorative Spandrel Glass

1. Vitro Architectural Glass

2. Oldcastle Building Envelope

3. Viracon

4. Contracting Officer-approved equivalent

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2.2 PERFORMANCE REQUIREMENTS

A. Structural Performance: Glazing shall withstand the following design loads within limits and under conditions indicated determined according to the International Building Code and ASTM E 1300.

1. Design Wind Pressures: As indicated on Drawings.

2. Differential Shading: Design glass to resist thermal stresses induced by differential shading within individual glass lites.

B. Safety Glazing: Where safety glazing is indicated, provide glazing that complies with 16 CFR 1201, Category II.

C. Thermal and Optical Performance Properties: Provide glass with performance properties specified, as indicated in manufacturer's published test data, based on procedures indicated below:

1. U-Factors: Center-of-glazing values, according to NFRC 100 and based on LBL's WINDOW

5.2 computer program, expressed as Btu/sq. ft. x h x deg F.

2. Solar Heat-Gain Coefficient and Visible Transmittance: Center-of-glazing values, according to NFRC 200 and based on LBL's WINDOW 5.2 computer program.

3. Visible Reflectance: Center-of-glazing values, according to NFRC 300.

2.3 GLASS PRODUCTS, GENERAL

A. Glazing Publications: Comply with published recommendations of glass product manufacturers and organizations below unless more stringent requirements are indicated. See these publications for glazing terms not otherwise defined in this Section or in referenced standards.

1. GANA Publications: "Laminated Glazing Reference Manual" and "Glazing Manual."

2. IGMA Publication for Insulating Glass: SIGMA TM-3000, "North American Glazing Guidelines for Sealed Insulating Glass Units for Commercial and Residential Use."

B. Insulating-Glass Certification Program: Permanently marked either on spacers or on at least one component lite of units with appropriate certification label of IGCC.

C. Thickness: Where glass thickness is indicated, it is a minimum. Provide glass that complies with performance requirements and is not less than the thickness indicated.

D. Strength: Where annealed float glass is indicated, provide annealed float glass, heat-strengthened float glass, or fully tempered float glass as needed to comply with "Performance Requirements" Article.

Where heat-strengthened float glass is indicated, provide heat-strengthened float glass or fully tempered float glass as needed to comply with "Performance Requirements" Article. Where fully tempered float glass is indicated, provide fully tempered float glass.

2.4 FLOAT GLASS PRODUCTS

A. Clear Annealed Float Glass: ASTM C 1036, Type I, Class 1 (clear), Quality-Q3.

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B. Fully Tempered Float Glass: ASTM C 1048, Kind FT (fully tempered), Condition A (uncoated) unless otherwise indicated, Type I, Class 1 (clear) or Class 2 (tinted) as indicated, Quality-Q3.

C. Reflective-Coated Spandrel Glass: ASTM C 1376, Kind CS.

2.5 LAMINATED GLASS

A. Laminated Glass: ASTM C 1172. Use materials that have a proven record of no tendency to bubble, discolor, or lose physical and mechanical properties after fabrication and installation.

1. Construction: Laminate glass with polyvinyl butyral interlayer to comply with interlayer manufacturer's written instructions.

2. Interlayer Thickness: Provide thickness not less than that indicated and as needed to comply with requirements.

3. Interlayer Color: Clear unless otherwise indicated.

2.6 INSULATING GLASS UNITS

A. Insulating-Glass Units: Factory-assembled units consisting of sealed lites of glass separated by a dehydrated interspace, qualified according to ASTM E 2190.

1. Sealing System: Dual seals.

2. Perimeter Spacer: Manufacturer's standard spacer material and construction

B. Decorative Frit: Ceramic frit applied via silk-screening process in either dot matrix or stripe pattern as described in the referenced standard.

1. Dot matrix: Black or White Dots no smaller than .2 in. diameter applied at no more than 2 in.

on center vertically and horizontally. Provide samples of both dot colors for selection by Contracting Officer in the field.

2. Stripes: No less than .25 in. wide applied no more than 4 in. on center vertically and 2 in. on center horizontally.

2.7 GLAZING TAPES

A. Back-Bedding Mastic Glazing Tapes: Preformed, butyl-based, 100 percent solids elastomeric tape;

nonstaining and nonmigrating in contact with nonporous surfaces; with or without spacer rod as recommended in writing by tape and glass manufacturers for application indicated; and complying with ASTM C 1281 and AAMA 800 for products indicated below:

1. AAMA 804.3 tape, where indicated.

B. Expanded Cellular Glazing Tapes: Closed-cell, PVC foam tapes; factory coated with adhesive on both surfaces; and complying with AAMA 800 for the following types:

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1. AAMA 810.1, Type 2, for glazing applications in which tape is used in combination with a full bead of liquid sealant.

2.8 MISCELLANEOUS GLAZING MATERIALS

A. Cleaners, Primers, and Sealers: Types recommended by sealant or gasket manufacturer.

B. Setting Blocks: Elastomeric material with a Shore, Type A durometer hardness of 85, plus or minus 5.

C. Spacers: Elastomeric blocks or continuous extrusions of hardness required by glass manufacturer to maintain glass lites in place for installation indicated.

D. Edge Blocks: Elastomeric material of hardness needed to limit glass lateral movement (side walking).

2.9 GLAZING SEALANTS: See Section 07 92 00, “Joint Sealants”

PART 3 - EXECUTION

3.1 GLAZING, GENERAL

A. Comply with combined written instructions of manufacturers of glass, sealants, gaskets, and other glazing materials and glass fabricators unless more stringent requirements are indicated, including those in referenced glazing publications.

B. Protect glass edges from damage during handling and installation. Remove damaged glass from Project site and legally dispose of off Project site. Damaged glass includes glass with edge damage or other imperfections that, when installed, could weaken glass, impair performance, or impair appearance.

C. Apply primers to joint surfaces where required for adhesion of sealants, as determined by preconstruction testing.

D. Install setting blocks in sill rabbets, sized and located to comply with referenced glazing publications, unless otherwise required by glass manufacturer. Set blocks in thin course of compatible sealant suitable for heel bead.

E. Do not exceed edge pressures stipulated by glass manufacturers for installing glass lites.

F. Provide spacers for glass lites where length plus width is larger than 50 inches.

G. 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.

3.2 TAPE GLAZING

A. Position tapes on fixed stops so that, when compressed by glass, their exposed edges are flush with or protrude slightly above sightline of stops.

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B. Install tapes continuously, but not necessarily in one continuous length. Do not stretch tapes to make them fit opening.

C. Cover vertical framing joints by applying tapes to heads and sills first, then to jambs. Cover horizontal framing joints by applying tapes to jambs, then to heads and sills.

D. Place joints in tapes at corners of opening with adjoining lengths butted together, not lapped. Seal joints in tapes with compatible sealant approved by tape manufacturer.

E. Apply heel bead of elastomeric sealant.

F. Center glass lites in openings on setting blocks, and press firmly against tape by inserting dense compression gaskets formed and installed to lock in place against faces of removable stops. Start gasket applications at corners and work toward centers of openings.

G. Apply cap bead of elastomeric sealant over exposed edge of tape.

3.3 GASKET GLAZING (DRY)

A. Cut compression gaskets to lengths recommended by gasket manufacturer to fit openings exactly, with allowance for stretch during installation.

B. Insert soft compression gasket between glass and frame or fixed stop so it is securely in place with joints miter cut and bonded together at corners.

C. Installation with Drive-in Wedge Gaskets: Center glass lites in openings on setting blocks, and press firmly against soft compression gasket by inserting dense compression gaskets formed and installed to lock in place against faces of removable stops. Start gasket applications at corners and work toward centers of openings. Compress gaskets to produce a weathertight seal without developing bending stresses in glass. Seal gasket joints with sealant recommended by gasket manufacturer.

D. Installation with Pressure-Glazing Stops: Center glass lites in openings on setting blocks, and press firmly against soft compression gasket. Install dense compression gaskets and pressure-glazing stops, applying pressure uniformly to compression gaskets. Compress gaskets to produce a weathertight seal without developing bending stresses in glass. Seal gasket joints with sealant recommended by gasket manufacturer.

E. Install gaskets so they protrude past face of glazing stops.

3.4 SEALANT GLAZING (WET)

A. Install continuous spacers, or spacers combined with cylindrical sealant backing, between glass lites and glazing stops to maintain glass face clearances and to prevent sealant from extruding into glass channel and blocking weep systems until sealants cure. Secure spacers or spacers and backings in place and in position to control depth of installed sealant relative to edge clearance for optimum sealant performance.

B. Force sealants into glazing channels to eliminate voids and to ensure complete wetting or bond of sealant to glass and channel surfaces.

C. Tool exposed surfaces of sealants to provide a substantial wash away from glass.

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3.5 CLEANING AND PROTECTION

A. Immediately after installation remove nonpermanent labels and clean surfaces.

B. Protect glass from contact with contaminating substances resulting from construction operations.

Examine glass surfaces adjacent to or below exterior concrete and other masonry surfaces at frequent intervals during construction, but not less than once a month, for buildup of dirt, scum, alkaline deposits, or stains.

1. If, despite such protection, contaminating substances do come into contact with glass, remove substances immediately as recommended in writing by glass manufacturer. Remove and replace glass that cannot be cleaned without damage to coatings.

C. Remove and replace glass that is damaged during construction period.

3.6 GLAZING SCHEDULE

A. Glass Type #GL-1: Clear fully-tempered float glass.

1. Minimum Thickness: 4 mm.

2. Safety glazing required.

3. Where used: Interior door transoms

B. Glass Type #GL-2: Clear laminated glass with two plies of heat-strengthened float glass

1. Minimum thickness of each glass ply: 4 mm

2. Interlayer Thickness: .030 inch

3. Where used:

a. Interior doors (Type B)

b. Interior partitions

4. Safety glazing required

C. Glass Type #GL-3: Insulated, Decorative, Tempered Glass: Low-e coated, 1-inch thickness

1. Inner Lite: Fully tempered, minimum thickness 6 mm

2. Air space: Argon

3. Outer lite: Fully tempered, minimum thickness 6 mm

4. Low-e Coating: Pyrolitic, #2 surface

5. Decorative Frit: #1 surface

6. Where used: Curtain wall and storefront

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7. Safety glazing required

D. Glass Type #GL-4: Insulated, Ceramic-coated Spandrel Glass: Low-e coated, 1-inch thickness

1. Minimum thickness, each lite: 5 mm

2. Outer lite: Heat-strengthened

3. Inner lite: Heat-strengthened

4. Low-e Coating: Pyrolitic, #2 surface

5. Opacifier: #4 surface

6. Decorative Frit: #1 surface

7. Spandrel glass to match vision glass in pattern, color and appearance

8. Where used: Curtain wall

D. Glass Type #GL-5: Insulated, Decorative, Laminated Glass: Low-E-coated, ¾-inch thickness.

1. Overall Unit Thickness: 3/4 inch.

2. Minimum Thickness of Outdoor Lite: 6 mm.

3. Outdoor Lite: Two plies of clear, heat-strengthened glass laminated with PVB interlayer

a. Minimum Thickness of Each Glass Ply: 3 mm

b. Interlayer Thickness: 0.030 inch

c. Decorative frit: #1 surface

d. Low-e Coating: Pyrolytic, #2 surface

4. Interspace Content: Argon.

5. Indoor Lite: Two plies of clear, heat-strengthened glass laminated with PVB interlayer.

a. Minimum Thickness of Each Glass Ply: 3 mm

b. Interlayer Thickness: 0.030 inch

6. Safety glazing required.

7. Where used: Storefront entrance doors

E. Glass Type #GL-6: Insulated, Tempered Glass: Low-e coated, 1-inch thickness

1. Overall Unit Thickness: 1 inch.

2. Outdoor Lite: Clear, tempered float glass, minimum thickness 6 mm

3. Interspace Content: Argon.

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4. Indoor Lite: Clear, tempered float glass, minimum thickness 6 mm

5. Low-E Coating: Pyrolytic, #2 surface.

6. Where used: Windows 125 and 225

END OF SECTION 08 80 00

B. Coordinate glass and glazing installation with other trades affected by the work of this section including, but not limited to, curtainwall and storefront framing, sealants, stair installation and flashing work. Coordinate spandrel glass installati...