SECTION GLAZING PART 1 GENERAL 1.1 SUMMARY. A. Section includes: 1. Glass Types. 2. Glazing.

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1 SECTION GLAZING PART 1 GENERAL 1.1 SUMMARY A. Section includes: 1. Glass Types. 2. Glazing. B. Related Sections: Documents relating to the work of this section include, but are not limited to, the General Conditions, Supplementary Conditions, Sections of Division 1, and: 1. Section : Metal Doors and Frames 2. Section : Entrances and Storefronts C. Definitions: 1. Interspace: Space between lites of an insulating glass unit that contains dehydrated air or specified gas. 2. Deterioration of Laminated Glass: Defects developed from normal use that are attributed to the manufacturing process and not to causes other than 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. 3. Deterioration of Insulating Glass: Failure of the hermetic seal under normal use that is attributed to the manufacturing process and not to causes other than 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. 4. Solar-control low-e glazing has a SHGC below Solar-control low-e coatings maximize the amount of daylight transmitted through the glass while minimizing both the amount of solar heat transmitted into the building and the amount of heat loss from the long-wave infrared portion of the heat spectrum. 1.2 REFERENCES (Refer Section ) A. Provide products and workmanship in accordance to: 1. Flat Glass Marketing Association (FGMA): 2. Consumer Product Safety Commission (CPSC). 3. ANSI Z97.1a ASTM C 1036: Standard Specification for Flat Glass. 5. ASTM C Standard Guide for Use of Joint Sealants. 6. ASTM E 283: Standard Test Method for Determining the Rate of Air Leakage through Exterior Windows, Curtain Walls, and Doors under Specified Pressure Differences across the Specimen. 7. ASTM E 330: Standard Test Method for Structural Performance of Exterior Windows, Curtain Walls, and Doors by Uniform Static Air Pressure Difference. 8. ASTM E 2188: Standard Test Method for Insulating Glass Unit Performance. 9. ASTM E 2190: Standard Specification for Insulating Glass Unit Performance and Evaluation. 10. ASTM E 1300: Standard Practice for Determining the Minimum Thickness and Type of Glass Required to Resist a Specified Load. 11. GANA (GM): FGMA Glazing Manual; Glass Association of North America. GLAZING

2 12. GANA (SM): FGMA Sealant Manual; Glass Association of North America. 13. GANA (LGDG): Laminated Glass Design Guide; Glass Association of North America. 1.3 SUBMITTALS A. Product Data: Submit manufacturer's technical data for each glass type and glazing material required, including installation and maintenance instructions. 1.4 SYSTEM REQUIREMENTS A. General: Provide glazing systems that are produced, fabricated, and installed to withstand normal thermal movement, wind loading, and impact loading (where applicable), without failure including glass breakage, failure of sealants or gaskets, deterioration of glazing materials, and other defects. B. Standards: Comply with the following published recommendations of glass product manufacturers and organizations: 1. GANA Publications: GANA s Glazing Manual and Laminated Glass Design Guide. 2. AAMA Publications: AAMA GDSG-1, Glass Design for Sloped Glazing, and AAMA TIR-A7, Sloped Glazing Guidelines. 3. SIGMA Publications: SIGMA TM-3000, Vertical Glazing Guidelines, and SIGMA TB-3001, Sloped Glazing Guidelines. C. Code Compliance: Comply with applicable codes and regulations, and with applicable recommendations of Flat Glass Marketing Association (FGMA) "Glazing Manual." D. Glass Design: Glass thicknesses as indicated are for detailing only. Confirm glass thicknesses by analyzing Project loads and in service conditions. Provide glass lites for the various size openings in the thicknesses and strengths (annealed or heat-treated) to meet or exceed the following criteria: 1. Glass Thicknesses: Select minimum glass thicknesses to comply with ASTM E1300, according to wind loads and snow loads described in ASCE Size glass to withstand dead loads and positive and negative live loads acting normal to plane of glass to a design pressure of 29 pounds per square foot in accordance with ASTM E Limit glass deflection to 1/200 or flexure limit of glass with full recovery of glazing materials, whichever is less. 4. Safety Glass: Category II materials complying with testing requirements in 16 CFR 1201 and ANSI Z97.1. E. Hazardous Locations: Provide safety glass where required by "Safety Standards for Architectural Glazing Materials", issued by Consumer Product Safety Commission, CPSC 16 CFR 1201, regardless of glass type shown on drawings. The following are hazardous locations: 1. Glazing in ingress and means of egress doors. 2. Glazing adjacent to a door and within the same wall plane as the door whose nearest vertical edge is within 24 inches of the door in a closed position and whose bottom edge is less than 60 inches above the floor or walking surface, unless an intervening interior permanent wall is between the door and the glazing. 3. Glazing in fixed panels having a glazed area in excess of 9 square feet with the lowest edge less than 18 inches above the finish floor level or walking surface within 36 inches of such glazing, unless a horizontal member not less than 1-1/2 inches in width is located between 24 inches and 36 inches above the walking surface. GLAZING

3 F. Thermal Performance: Normal thermal movement results from the following maximum change (range) in ambient and surface temperatures acting on glass framing members and glazing components. Base engineering calculations on surface temperatures due to both solar heat gain and nighttime sky heat loss. 1. Temperature Change (Range): 120 deg F, ambient; 180 deg F, material surfaces. 2. Solar Heat Gain Coefficient: NFRC 200; G. Fire-Rated Assemblies: Provide assemblies complying with NFPA 80 that are listed and labeled by a testing and inspecting agency for fire ratings indicated, according to NFPA 252 and 257. Provide on each lite a permanent, non-removable label of UL and/or WHI certifying it for use in tested and in rated fire protective assemblies. H. Labels: Provide labels on all glass indicating manufacturer, type of glass, thickness, and quality mark. Maintain labels on glass until glass has been set and approved by architect. 1.5 PROJECT CONDITIONS A. Environmental Conditions: 1. Maintain (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. 2. Do not install products under environmental conditions outside manufacturer's absolute limits. 3. Install liquid sealants at ambient and substrate temperatures above 40 degrees F. B. Field Measurements: When construction schedule permits, verify field measurements with drawing dimensions prior to fabrication of glass products. 1.6 WARRANTIES A. Provide manufacturer s 10-year written warranty for all insulating glass units covering removal and replacement of units because of deterioration, imperfections, obstruction of vision, film formation or dust collection within glass cavity under normal conditions of use but excluding conditions due to handling, storage, installation and maintenance practices contrary to manufacturer's published instructions. B. Provide ten year warranty to include replacement for laminated glass exhibiting delamination. C. Provide manufacturer s standard written warranties for all other glass and glazing products. 1.7 DELIVERY, STORAGE, HANDLING A. Deliver glass to site in suitable containers that will protect glass from the weather and from breakage. B. Store and dispose of solvent-based materials, and materials used with solvent-based materials, in accordance with requirements of local authorities having jurisdiction. GLAZING

4 PART 2 PRODUCTS 2.1 COMPLIANCE A. All manufacturers listed herein without a designated product must comply with the requirements of the specification, and, additionally, with the requirements of a specific manufacturer s product if indicated. Products of other manufacturers will be considered for acceptance provided they equal or exceed the material requirements and functional qualities of the specification. Furnish the Substitution Request Form with complete technical data for evaluation for Architect s approval. Additional approved manufacturers will be issued by Addendum. Refer to Division GLASS MANUFACTURERS A. Primary Glass: 1. PPG Industries Corp., Pittsburgh, Pennsylvania 2. Guardian, Carleton, Michigan 3. Visteon, Detroit, Michigan 4. Pilkington, Toledo, Ohio 5. AFG, Kingsport, Tennessee 6. AFGD Glass (Subsidiary of AFG), Atlanta, Georgia B. Fire Resistive Glass: 1. SAFTI, San Francisco, California 2. Technical Glass Products, Kirkland, Washington 3. Vetrotech Saint-Gobain, Auburn, Washington 4. InterEdge Technologies, Sausalito, California 5. Pilkington North America, Toledo, Ohio 2.3 GLASS STANDARDS AND REQUIREMENTS A. General: Unless indicated otherwise, reference numbers used throughout this Section are from ASTM C 1036 and C B. Clear Float Glass: Type I (transparent glass, flat), Class 1 (clear), Quality q3 (glazing select). C. Heat Treated Float Glass: ASTM C1048; Type I (transparent float glass); Quality-Q 3 ; of class, kind, and condition indicated. 1. Fabrication Process: By horizontal (roller-hearth) process with roll wave distortion parallel to bottom edge of glass as indicated, unless otherwise indicated. 2. Provide kind HS (heat strengthened) float glass in place of annealed float glass where needed to resist thermal stresses induced by differential shading of individual glass lites and to comply with glass design requirements specified. 3. For uncoated glass, comply with requirements for Condition A. 4. For coated vision glass, comply with requirements for Condition C (other uncoated glass). 5. Provide kind FT (fully tempered) float glass in place of annealed or kind HS (heat strengthened) float glass where safety glass is indicated. D. Insulated Glass: Factory fabricated with two panes of glass having a hermetically sealed dehydrated air space, complying with ASTM E 773/E 774 Class CBA and with other requirements specified. Provide low-emissivity coated units. 1. Provide kind HS (heat strengthened) float glass in place of annealed glass where glass is tinted and to comply with glass design requirements specified. GLAZING

5 2. Provide kind FT (fully tempered) glass lites where safety glass is indicated. 3. Overall Unit Thickness and Thickness of Each Lite: Dimensions indicated for insulating glass units are nominal and the overall thicknesses of units are measured perpendicularly from outer surfaces of glass lites at unit s edge. 4. Sealing System: Dual Seal, with primary and secondary sealants using Manufacturer s standard sealants and spacer material. E. Fire-Rated Glass Products: 1. Specially Tempered Monolithic Glass: Specially tempered monolithic glass, Proprietary Category II safety glazing product in the form of a specially tempered monolithic lite, with Fire Rating of 20 to 90 minutes, and permanently labeled by a testing and inspecting agency. Provide with 5-year written manufacturer s warranty. 2.4 EXTERIOR GLASS APPLICATIONS A. Exterior Doors, Sidelights, Transoms, and Storefront: 1 inch thick insulating glass consisting of 1/4 thick tempered solar grey outer panel, a 1/2 wide hermetically sealed air or gas space, and 1/4 thick tempered with low e coating inner panel. 2.5 INTERIOR GLASS APPLICATIONS A. Vestibule Doors, Sidelights, and Transoms: 1/4 inch thick clear tempered glass. B. Interior Fire Rated Doors and Windows: 1/4 inch fire-rated glazing product. C. Interior Non-Fire Rated Doors and Windows: 1/4 inch clear tempered safety glass. 2.6 GLAZING MATERIALS. A. Elastomeric Glazing Sealant Standard: Comply with ASTM C920 and other requirements indicated for each liquid-applied, chemically curing sealant, including classifications for type, grade, class, and uses. 1. Dow Corning 2. GE Silicones 3. Sonneborn, Div. of ChemRex, Inc. 4. Tremco 5. Pecora Corporation B. Silicone Rubber Sealant: Silicone rubber, one part elastomeric sealant complying with FS TT-S-00227, Class A, Type 2 (non sag). C. Preformed Butyl Rubber Glazing Sealant: Tape or ribbon of polymerized butyl, or butyl/polyisobutylene, compounded with inert fillers and pigments, solvent-based. D. Polysulfide Glazing Sealant: Two Component, 2-part elastomeric sealant, complying with FS TT-S , Class A, Type 2 (non sag). E. Back-Bedding Mastic Glazing Tape: Preformed, butyl-based elastomeric tape, non-staining and nonmigrating, complying with ASTM C1281 and AAMA 800. F. Glazing Gaskets: 1. Lock Strip Gaskets: ASTM C 864, black neoprene extrusions in size and shape indicated, fabricated into frames with molded corner units and zipper lock strips, complying with ASTM C542. GLAZING

6 2. Dense Compression Gaskets: Molded or extruded gaskets of EPDM, silicone, or thermoplastic polyolefin rubber, and of profile and hardness required to maintain watertight seal. 3. Soft Compression Gaskets: Extruded or molded, closed cell, integral skinned gaskets of EPDM, silicone, or thermoplastic polyolefin rubber, complying with ASTM C509, Type II, black, and of profile and hardness required to maintain watertight seal: G. Filler Rod: Closed cell or waterproof-jacketed rod-stock of synthetic rubber or plastic foam compatible with sealants used. H. Setting Blocks: ASTM C 864, neoprene, 80 to 90 Shore A durometer hardness; length 4 inches, width of glazing rabbet space less 1/16 inch, height required for glazing method, pane weight, and pane area. I. Spacer Shims: ASTM C 864, neoprene, 50 to 60 Shore A durometer hardness; length 3 inches, one half height of glazing stop, thickness required for application, one face self-adhesive. J. Glazing Splines: ASTM C 864, resilient polyvinyl chloride, extruded shape to fit glazing channel retaining slot, black color. K. Edge Blocks: Elastomeric material of hardness needed to limit glass lateral movement (side walking). 2.7 FABRICATION A. Tempered Glass: 1. Cut float glass materials to indicated sizes and provide cut-outs and holes, if indicated, before heat strengthening. 2. Fully temper float glass materials in accordance with ASTM C 1048, Kind FT. B. Sealed Insulating Glass Units: 1. Fabricate units in accordance with ASTM E 2190 Standard Specification for Insulating Glass Unit Performance and Evaluation with components and performance characteristics specified. 2. Provide unit edge seals meeting requirements of ASTM E 773, with aluminum spacers having mitered and corners, and silicone sealant for glass-to-spacer seals. PART 3 EXECUTION 3.1 PREPARATION A. Clean the glazing channel or other framing members to receive glass, immediately before glazing. Remove lacquer from metal surfaces wherever elastomeric sealants are used. B. Apply primer or sealer to joint surfaces when recommended by sealant manufacturer. 3.2 INSTALLATION OF GLASS A. General: 1. Install glass in windows, entrance work, hollow metal frames, fire extinguisher cabinets, and other items requiring glass, in accordance to manufacturer's instructions. 2. 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. GLAZING

7 3. Install glass using recommended methods and practices of FGMA. All glazing exposed to exterior shall be wet/wet or wet/dry in accordance with FGMA Glazing Manual for window type. Watertight and airtight installation of each piece of glass is required, except as otherwise shown. 4. 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. 5. Tool exposed surfaces of glazing liquids and compounds to provide a substantial "wash" away from the glass. Install pressurized tapes and gaskets to protrude slightly out of the channel, so as to eliminate dirt and moisture pockets. 6. Provide edge blocking where indicated or needed to prevent glass lites from moving sideways in glazing channel, according to requirements in referenced glazing publications. Set blocks in thin course of compatible sealant suitable for heel bead. 7. Clean and trim excess glazing materials from the glass and stops or frames promptly after installation and eliminate stains and discoloration. 8. Square cut wedge shaped gaskets at corners and install gaskets in a manner recommended by gasket manufacturer to prevent corners from pulling away. Seal corner joints and butt joints with sealant recommended by gasket manufacturer. B. Tape Glazing: 1. Position tapes on fixed stops so that, when compressed by glass, their exposed edges are flush with or protrude slightly above sight line of stops. 2. Install tapes continuously, but not necessarily in one continuous length. Do not stretch tapes to make them fit opening. 3. Where framing joint is vertical, cover these joints by applying tape to heads and sills first and then to jambs. Where framing joint is horizontal, cover these joints by applying tape to jambs and then to heads and sills. 4. 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. 5. Do not remove release paper from tape until just before each glazing unit is installed. 6. 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. 7. Apply cap bead of elastomeric sealant over exposed edge of tape. C. Gasket Glazing (Dry): 1. Fabricate compression gaskets in lengths recommended by gasket manufacturer to fit openings exactly, with stretch allowance during installation. 2. Insert soft compression gasket between glass and frame or fixed stop so it is securely in place with joint miter cut and bonded together at corners. 3. 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. 4. Install gaskets so they produce past face of glazing stops. D. Sealant Glazing (Wet): 1. 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. GLAZING

8 2. Force sealants into glazing channels to eliminate voids and to ensure complete wetting or bond of sealant to glass and channel surfaces. 3. Tool exposed surfaces of sealants to provide a substantial wash away from glass. 3.3 CURING, PROTECTION, AND CLEANING A. Cure glazing sealants and compounds in compliance with manufacturer's instructions and recommendations to obtain high early bond strength, internal cohesive strength, and surface durability. B. Remove and replace glass that is broken, chipped, cracked, abraded, or damaged in other ways during the construction period including natural causes, accidents, and vandalism. C. 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. D. Remove manufacturer's labels when directed by the Architect. END OF SECTION GLAZING

SECTION GLAZING

SECTION GLAZING SECTION 088000 GLAZING PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and General Provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections,