SECTION GLAZING ADDENDUM 10 APRIL 20, 2011

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1 SECTION GLAZING ADDENDUM 10 APRIL 20, 2011 PART 1 GENERAL 1.01 SUMMARY A. Section Includes: 1. Glass. 2. Glazing compounds and accessories. 3. Installation of glass and glazing in storefront frames. 4. Wood doors and windows are field and shop glazed. B. Related Sections: 1. Section Joint Sealers: Sealant and back-up material. 2. Section Steel Doors and Frames: Glazed doors and transoms. 3. Section Sliding Glass Doors: Glazed doors and transoms. 3. Section Tubular Plastic Windows: Glazed windows REFERENCES A. Reference Standards: See Section Comply with following: 1. ANSI Z American National Standard for Safety Glazing Materials Used in Buildings, Safety Performance Specifications and Methods of Test. 2. ASTM C Standard Specification for Flat Glass. 3. ASTM C Standard Specification for Heat-Treated Flat Glass--Kind HS, Kind FT Coated and Uncoated Glass. 4. ASTM C Standard Guide for Use of Joint Sealants. 5. ASTM E Standard Practice for Determining Load Resistance of Glass in Buildings. 6. GANA (GM) - GANA Glazing Manual; Glass Association of North America. 7. GANA (SM) - FGMA Sealant Manual; Glass Association of North America PERFORMANCE REQUIREMENTS A. Provide glass and glazing materials for continuity of building enclosure vapor retarder and air barrier: 1. Provide glass and glazing that has been produced, fabricated and installed to withstand normal temperature changes, wind loading, impact loading (where applicable), without failure including loss or breakage of glass, failure of sealants or gaskets to remain watertight and airtight, deterioration of glass and glazing materials, and other defects in the work. 2. Verify performance requirements pertaining to design of glass, framing, and window work of Section In conjunction with materials described in Section and To maintain a continuous air barrier and vapor retarder throughout the glazed assembly from glass pane to heel bead of glazing sealant. B. Select type and thickness of exterior glass to withstand dead loads and wind loads acting normal to plane of glass at design pressures calculated in accordance with requirements of applicable code. 1. Use the procedure specified in ASTM E 1300 to determine glass type and thickness. 2. Limit glass deflection to 1/200 or flexure limit of glass, whichever is less, with full recovery of glazing materials. 3. Thicknesses listed are minimum. Coordinate thicknesses with framing system manufacturers. GLAZING

2 1.04 SUBMITTALS A. See Section Administrative Requirements, for submittal procedures. 1. Product Data on Glass Types: Provide structural, physical and environmental characteristics, size limitations, special handling or installation requirements. 2. Product Data on Glazing Compounds: Provide chemical, functional, and environmental characteristics, limitations, special application requirements. Identify available colors. 3. Samples: Submit two samples 12 x 12 inch (305 x 305 mm) in size of glass units, showing coloration and design. 4. Submit certificates from respective manufacturers attesting that glass and glazing materials furnished for project comply with requirements QUALITY ASSURANCE A. Perform Work in accordance with GANA Glazing Manual and FGMA Sealant Manual for glazing installation methods. B. Installer Qualifications: Company specializing in performing the work of this section with minimum five years documented experience and approved by manufacturer. C. Labels: Each Individual Piece of Glass: Bear label designating type, thickness and quality. Do not remove labels until reviewed by Architect. D. Regulatory Requirements: See Section Comply with: 1. Wire Glass: UL approved. 2. Safety Glass and Glazing: State Statutes, IBC 2000, and ANSI Z97.1 and testing requirements of 16 CFR Part 1201 for category II materials. a. Subject to compliance with requirements, provide safety glass permanently marked with certification label of Safety Glass Certification Council (SGCC) or other certification agency acceptable to authorities having jurisdiction. E. Provide glass for the size openings shown in thicknesses such that the probability of breakage at the Design Wind Pressure will not exceed 8 lights per 1000 lights (2.5 S.G.F.) 1. Thicknesses shown or specified are for convenience of detailing only and shall be confirmed by Contractor and/or glass manufacturer DELIVERY, STORAGE, AND HANDLING A. General: Comply with Section Delivery: Schedule delivery to coincide with glazing schedules so minimum handling of crates is required. Do not open crates except as required for inspection for shipping damage. 2. Storage: Store cases according to printed instructions on case, in areas least subject to traffic or falling objects. Keep storage area clean and dry. 3. Handling: Unpack cases following printed instructions on case. Stack individual windows on edge leaned slightly against upright supports with separators between each PROJECT CONDITIONS A. Field Measurements: Field measure openings before ordering tempered glass products. Be responsible for proper fit of field measured products. B. Environmental Requirements: 1. Do not install glazing when ambient temperature is less than 50 degrees F (10 degrees C). 2. Maintain minimum ambient temperature before, during and 24 hours after installation of glazing compounds. GLAZING

3 1.08 WARRANTY A. See Section Closeout Submittals, for additional warranty requirements. 1. Provide a ten (10) year warranty to include coverage for sealed glass units from seal failure, movement of interpane muntins, interpane dusting or misting, and replacement of same. PART 2 PRODUCTS 2.01 GLASS PRODUCTS, GENERAL A. Fabricate glass to sizes required for glazing openings indicated, with edge clearances and tolerances complying with recommendations of glass manufacturer. Provide thicknesses indicated or, if not otherwise indicated, as recommended by glass manufacturer for application indicated FLAT GLASS MATERIALS A. Manufacturers: 1. Guardian Industries Corp. 2. Pilkington Libbey-Owens-Ford. 3. Visteon Glass Systems. 4. Substitutions: Refer to Section Product Requirements. B. Clear Float Glass: Clear, annealed. 1. Comply with ASTM C 1036, Type I, transparent flat, Class 1 clear, Quality q3 glazing select. 2. Minimum thickness: 1/4 inch (6.35 mm), as required to fit opening stops. C. Safety Glass: Clear; fully tempered with horizontal tempering. 1. Comply with ASTM C 1048, Condition A uncoated, Type I, transparent flat, Class 1, Quality q3 glazing select. 2. Comply with ANSI Z Minimum thickness: 1/4 inch (6.35 mm), as required to fit opening stops. D. Wired Glass: Clear. 1. Provide at stair and exit doors where scheduled. 2. Square mesh of woven stainless steel wire. 3. 1/2 inch (12 mm) grid size. 4. Comply with ASTM C 1036, Type II patterned and wired flat, Class 1 clear, Quality q8 glazing. 5. Polished both sides. 6. 1/4 inch (6 mm) thick, as required to fit opening stops SEALED INSULATING GLASS MATERIALS A. Manufacturers: 1. Guardian Industries Corp. 2. Interpane Glass Co. 3. Viracon, Apogee Enterprises, Inc. 4. Substitutions: Refer to Section Product Requirements. B. Insulated Glass Units: Double pane with glass to elastomer edge seal. 1. Provide at exterior windows and glazed hollow metal doors and frames. 2. Provide laminated glass as indicated where windows require high STC rating. 3. Provide tempered glass whether or not indicated, where required to comply with safety glazing requirements. 4. Vinyl Windows and Sliding Doors: Outer pane of 1/8 inch, clear glass, inner pane of 1/8 inch clear glass. Total unit thickness: As required to fit window glazing stops. 5. Glazed Hollow Metal Doors and Frames: Outer pane of clear tempered glass, inner pane of clear tempered glass. Total unit thickness: As required to fit glazing stops. GLAZING

4 6. Purge interpane space with dry hermetic air GLAZING COMPOUNDS A. Compressible Filler Rod: Closed-cell or waterproof-jacketed rod stock of synthetic rubber or plastic foam proven to be compatible with sealants used, flexible or resilient with 5-10 PSI compressive strength for 25 percent deflection. B. Silicone Sealant: ASTM C920, Type S, Grade NS, Class 25, Uses NT, G, and A; Dow Corning 795 Silicon Building Sealant, GE Ultraglaze 4000, or accepted substitute in accordance with Section GLAZING ACCESSORIES A. Setting Blocks, Shims, Glazing Clips and other Glazing Materials: Size and type as recommended by glass manufacturer for frame. PART 3 EXECUTION 3.01 EXAMINATION A. Verification of Conditions: Comply with Section 01400: 1. Require glazing installer to inspect work of glass framing erector for compliance with manufacturing and installation tolerances, including those for size, squareness, offsets at corners; for presence and functioning of weep system; for existence of minimum required face or edge clearances; and for effective sealing of joinery. Obtain Glazing installer s written report listing conditions detrimental to performance of glazing work. Do not allow glazing work to proceed until unsatisfactory conditions have been corrected. 2. Clean glazing channels and other framing members to receive glass, immediately before glazing. Remove coatings which are not firmly bonded to substrates. Remove lacquer from metal surfaces where elastomeric sealants are indicated for use. 3. Verify that openings for glazing are correctly sized and within tolerance. 4. Verify that surfaces of glazing channels or recesses are clean, free of obstructions that may impede moisture movement, weeps are clear, and ready to receive glazing PREPARATION A. Cleandown of Masonry: Completed prior to glass installation. B. Clean contact surfaces with solvent and wipe dry. C. Seal porous glazing channels or recesses with substrate compatible primer or sealer. D. Prime surfaces scheduled to receive sealant. E. Install sealants in accordance with ASTM C 1193 and FGMA Sealant Manual GLAZING, GENERAL A. Comply with combined printed recommendations of glass manufacturers, of manufacturers of gaskets and other glazing materials, except where more stringent requirements are indicated, including those of referenced glazing standards. B. Apply primers to joint surfaces where required for adhesion of sealants, as determined by preconstruction sealant-substrate testing INSTALLATION - EXTERIOR WET/DRY METHOD (PREFORMED TAPE AND SEALANT) GLAZING

5 A. Glaze vinyl windows with glazing beads using this method, unless window manufacturer recommends otherwise. 1. Cut glazing tape to length and set against permanent stops, 3/16 inch (5 mm) below sight line. Seal corners by butting tape and dabbing with butyl sealant. 2. Apply heel bead of butyl sealant along intersection of permanent stop with frame ensuring full perimeter seal between glass and frame to complete the continuity of the air and vapor seal. 3. Place setting blocks at 1/4 points with edge block no more than 6 inches (150 mm) from corners. 4. Rest glazing on setting blocks and push against tape and heel bead of sealant with sufficient pressure to attain full contact at perimeter of pane or glass unit. 5. Install removable stops, with spacer strips inserted between glazing and applied stops, 1/4 inch (6 mm) below sight line. Place glazing tape on glazing pane or unit with tape flush with sight line. 6. Fill gap between glazing and stop with specified type sealant to depth equal to bite of frame on glazing, but not more than 3/8 inch (9 mm) below sight line. 7. Apply cap bead of specified type sealant along void between the stop and the glazing, to uniform line, flush with sight line. Tool or wipe sealant surface smooth INSTALLATION - EXTERIOR WET METHOD (SEALANT AND SEALANT) A. Glaze other exterior openings using this method, unless manufacturer of opening frame recommends otherwise. 1. Place setting blocks at 1/4 points and install glazing pane or unit. 2. Install removable stops with glazing centered in space by inserting spacer shims both sides at 24 inch (600 mm) intervals, 1/4 inch (6 mm) below sight line. 3. Fill gaps between glazing and stops with specified type sealant to depth of bite on glazing, but not more than 3/8 inch (9 mm) below sight line to ensure full contact with glazing and continue the air and vapor seal. 4. Apply sealant to uniform line, flush with sight line. Tool or wipe sealant surface smooth CLEANING A. Remove glazing materials from finish surfaces. B. Remove labels after Work is complete. C. Clean glass and adjacent surfaces PROTECTION OF FINISHED WORK A. Protection: Completely cover glass during spray painting, texturing or other construction operations that might cause damage to glass. B. Remove and replace glass which is broken, chipped, cracked, abraded or damaged in other ways during construction period, including natural causes, accidents and vandalism. END OF SECTION GLAZING