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HomeMy WebLinkAbout08 80 00.docMATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 08 80 00 - CARMEL CITY CENTER Date 03.26.012 GLAZING MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 SECTION 08 80 00 - 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, apply to this Section. 1.2 SUMMARY A. Section includes glazing for the following products and applications, including those specified in other Sections where glazing requirements are specified by reference to this Section: 1. Windows. 2. Doors. 3. Storefront framing. 1.3 DEFINITIONS A. Glass Manufacturers: Firms that produce primary glass, fabricated glass, or both, as defined in referenced glazing publications. B. Glass Thicknesses: Indicated by thickness designations in millimeters according to ASTM C 1036. C. Glass-Unit Thickness: Indicated by thickness designations in inches. D. Inter-space: Space between lites of an insulating-glass unit. E. Deterioration of Insulating Glass: Failure of 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. 1.4 PERFORMANCE REQUIREMENTS A. General: Installed glazing systems shall withstand normal thermal movement and wind and impact loads (where applicable) without failure, including loss or glass breakage attributable to the following: defective manufacture, fabrication, or installation; failure of sealants or gaskets to remain watertight and airtight; deterioration of glazing materials; or other defects in construction. B. Delegated Design: Design glass, including comprehensive engineering analysis according to ASTM E 1300 and ICC's 2003 International Building Code by a qualified professional engineer, using the following design criteria: 1. Design Wind Pressures: As indicated on Drawings. 2. Design Snow Loads: 20 psf. MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 08 80 00 - CARMEL CITY CENTER Date 03.26.012 GLAZING MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 3. Vertical Glazing: For glass surfaces sloped 15 degrees or less from vertical, design glass to resist design wind pressure based on glass type factors for short-duration load. 4. Maximum Lateral Deflection: For glass supported on all four edges, limit center-of-glass deflection at design wind pressure to not more than 1/50 times the short-side length or 1 inch, whichever is less. 5. Differential Shading: Design glass to resist thermal stresses induced by differential shading within individual glass lites. C. Glass Design: Glass thickness designations indicated are minimums and are for detailing only. Confirm glass thicknesses. Provide glass lites in the thickness designations indicated for various size openings, but not less than thicknesses and in strengths (annealed or heat treated) required to meet or exceed the following criteria: 1. Glass Thicknesses: Select minimum glass thicknesses to comply with ASTM E 1300. D. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes acting on glass framing members and glazing components. 1. Temperature Change: 120 deg F, ambient; 180 deg F, material surfaces. E. Thermal and Optical Performance Properties: Provide glass with performance properties specified based on manufacturer's published test data, as determined according to procedures indicated below: 1. For monolithic-glass lites, properties are based on units with lites 6.0 mm thick of thickness indicated. 2. For laminated-glass lites, properties are based on products of construction indicated. 3. For insulating-glass units, properties are based on units of thickness indicated for overall unit and for each lite. F. Human Impact: Conform to the following standards: ANSI Z97.1. 1.5 PRECONSTRUCTION TESTING A. Preconstruction Adhesion and Compatibility Testing: Test each glazing material type, tape sealant, gasket, glazing accessory, and glass-framing member for adhesion to and compatibility with elastomeric glazing sealants. 1. Testing will not be required if data are submitted based on previous testing of current sealant products and glazing materials matching those submitted. 2. Schedule sufficient time for testing and analyzing results to prevent delaying the Work. 3. For materials failing tests, submit sealant manufacturer's written instructions for corrective measures including the use of specially formulated primers. 1.6 SUBMITTALS A. Product Data: For each glass product and glazing material indicated. B. Glass Samples: For each type of the following products; 12 inches square. 1. Coated glass. 2. Insulating glass. 3. For each color (except black) of exposed glazing sealant indicated. MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 08 80 00 - CARMEL CITY CENTER Date 03.26.012 GLAZING MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 C. Glazing Accessory Samples: For gaskets sealants and colored spacers, in 12-inch lengths. Install sealant Samples between two strips of material representative in color of the adjoining framing system. D. Glazing Schedule: List glass types and thicknesses for each size opening and location. Use same designations indicated on Drawings. E. Qualification Data: For installers and also for manufacturers of insulating-glass units with sputter-coated, low-e coatings. F. Product Certificates: Signed by manufacturer of glass and glazing products certifying that products furnished comply with requirements. G. Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified testing agency, for tinted glass coated glass, insulating glass glazing sealants and glazing gaskets. 1. For glazing sealants, provide test reports based on testing current sealant formulations within previous 36-month period. 2. For glazing gaskets. H. Preconstruction adhesion and compatibility test report. I. Warranties: Sample of special warranties. 1.7 QUALITY ASSURANCE A. Manufacturer Qualifications for Insulating-Glass Units with Sputter-Coated, Low-E Coatings: A qualified insulating-glass manufacturer who is approved and certified by coated-glass manufacturer. B. Installer Qualifications: An experienced installer who has completed glazing projects similar in material, design, and extent to that indicated for this Project; whose work has resulted in glass installations with a record of successful in-service performance; and who employs glass installers who are certified under the National Glass Association's Certified Glass Installer Program. C. Glass Testing Agency Qualifications: A qualified independent testing agency accredited according to the NFRC CAP 1 Certification Agency Program. D. Sealant Testing Agency Qualifications: An independent testing agency qualified according to ASTM C 1021 to conduct the testing indicated. E. Source Limitations for Glass: Obtain ultra-clear float glass, tinted float glass, coated float glass, laminated glass, and insulating glass from single source, from single manufacturer for each glass type. F. Source Limitations for Glazing Accessories: Obtain from single source, from single manufacturer for each product and installation method. G. Glazing Publications: Comply with published recommendations of glass product manufacturers and organizations below, unless more stringent requirements are indicated. Refer to these publications for glazing terms not otherwise defined in this Section or in referenced standards. MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 08 80 00 - CARMEL CITY CENTER Date 03.26.012 GLAZING MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 1. IGMA Publication for Insulating Glass: SIGMA TM-3000, "North American Glazing Guidelines for Sealed Insulating Glass Units for Commercial and Residential Use." H. Safety Glazing Labeling: Where safety glazing labeling is indicated, permanently mark glazing with certification label of the SGCC or another certification agency acceptable to authorities having jurisdiction or the manufacturer. Label shall indicate manufacturer's name, type of glass, thickness, and safety glazing standard with which glass complies. I. Fire-Protection-Rated Glazing Labeling: Permanently mark fire-protection-rated glazing with certification label of a testing agency acceptable to authorities having jurisdiction. Label shall indicate manufacturer's name, test standard, whether glazing is for use in fire doors or other openings, whether or not glazing passes hose-stream test, whether or not glazing has a temperature rise rating of 450 deg F, and the fire-resistance rating in minutes. J. Insulating-Glass Certification Program: Permanently marked either on spacers or on at least one component lite of units with appropriate certification label of IGCC. K. Pre-installation Conference: Conduct conference at Project site. 1. Review and finalize construction schedule and verify availability of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays. 2. Review temporary protection requirements for glazing during and after installation. 1.8 DELIVERY, STORAGE, AND HANDLING A. Protect glazing materials according to manufacturer's written instructions. Prevent damage to glass and glazing materials from condensation, temperature changes, direct exposure to sun, or other causes. B. Comply with insulating-glass manufacturer's written recommendations for venting and sealing units to avoid hermetic seal ruptures due to altitude change. 1.9 PROJECT CONDITIONS A. Environmental Limitations: Do not proceed with glazing 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. 1. Do not install glazing sealants when ambient and substrate temperature conditions are outside limits permitted by sealant manufacturer or below 40 deg F. 1.10 WARRANTY A. Manufacturer's Special Warranty for Coated-Glass Products: Manufacturer's standard form in which coated-glass manufacturer agrees to replace coated-glass units that deteriorate within specified warranty period. Deterioration of coated glass is defined as defects developed from normal use that are not attributed to glass breakage or to maintaining and cleaning coated glass contrary to manufacturer's written instructions. Defects include peeling, cracking, and other indications of deterioration in coating. 1. Warranty Period: 10 years from date of Substantial Completion. MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 08 80 00 - CARMEL CITY CENTER Date 03.26.012 GLAZING MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 B. Manufacturer's Special Warranty on Insulating Glass: Manufacturer's standard form in which insulating-glass manufacturer agrees to replace insulating-glass units that deteriorate within specified warranty period. Deterioration of insulating glass is defined as 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. PART 2 - PRODUCTS 2.1 GLASS PRODUCTS, GENERAL A. Thickness: Where glass thickness is indicated, it is a minimum. Provide glass lites in thicknesses as needed to comply with requirements indicated. 1. Minimum Glass Thickness for Exterior Lites: Not less than 6.0 mm. 2. Thickness of Tinted Glass: Provide same thickness for each tint color indicated throughout Project. B. Strength: Where float glass is indicated, provide annealed float glass, Kind HS heat-treated float glass, or Kind FT heat-treated float glass as needed to comply with "Performance Requirements" Article. Where heat-strengthened glass is indicated, provide Kind HS heat- treated float glass or Kind FT heat-treated float glass as needed to comply with "Performance Requirements" Article. Where fully tempered glass is indicated, provide Kind FT heat-treated float glass. C. Windborne-Debris-Impact Resistance: Provide exterior glazing that passes basic-protection testing requirements in ASTM E 1996 when tested according to ASTM E 1886. Test specimens shall be no smaller in width and length than glazing indicated for use on the Project and shall be installed in same manner as glazing indicated for use on the Project. 1. Large-Missile Test: For glazing located within 30 feet of grade. 2. Small-Missile Test: For glazing located more than 30 feet above grade. 3. Large-Missile Test: For all glazing, regardless of height above grade. D. 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. For monolithic-glass lites, properties are based on units with lites 6.0 mm thick. 2. For insulating-glass units, properties are based on units of thickness indicated for overall unit and for each lite. 3. 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. 4. 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. 5. Visible Reflectance: Center-of-glazing values, according to NFRC 300. 2.2 GLASS PRODUCTS A. Float Glass: ASTM C 1036, Type I, Quality-Q3, Class I (clear) unless otherwise indicated. 1. Ultra-Clear (Low Iron) Float Glass: Class 1 (clear) with a minimum 91 percent visible light transmission and a minimum solar heat gain coefficient of 0.87. MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 08 80 00 - CARMEL CITY CENTER Date 03.26.012 GLAZING MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 a. Products: 1) AFG Industries Inc.; Krystal Klear. 2) Pilkington Building Products North America; Optiwhite. 3) PPG Industries, Inc.; Starphire. B. Heat-Treated Float Glass: ASTM C 1048; Type I; Quality-Q3; Class I (clear) unless otherwise indicated; of kind and condition indicated. 1. Fabrication Process: By horizontal (roller-hearth) process with roll-wave distortion parallel to bottom edge of glass as installed unless otherwise indicated. 2. For uncoated glass, comply with requirements for Condition A. 3. For coated vision glass, comply with requirements for Condition C (other coated glass). 2.3 INSULATING GLASS A. Manufacturers: Subject to compliance with requirements, provide products by the following: 1. Oldcastle Glass. B. Insulating-Glass Units: Factory-assembled units consisting of sealed lites of glass separated by a dehydrated inter-space, qualified according to ASTM E 2190, and complying with other requirements specified. 1. Sealing System: Dual seal, with manufacturer's standard primary and secondary. 2. Spacer: Manufacturer's standard spacer material and construction. 3. Desiccant: Molecular sieve or silica gel, or blend of both. C. Glass: Comply with applicable requirements in "Glass Products" Article as indicated by designations in "Insulating-Glass Types" Article. 2.4 GLAZING GASKETS A. Dense Compression Gaskets: Molded or extruded gaskets of profile and hardness required to maintain watertight seal, made from one of the following: 1. Neoprene complying with ASTM C 864. 2. EPDM complying with ASTM C 864. 3. Silicone complying with ASTM C 1115. 4. Thermoplastic polyolefin rubber complying with ASTM C 1115. B. Soft Compression Gaskets: Extruded or molded, closed-cell, integral-skinned neoprene, EPDM, silicone or thermoplastic polyolefin rubber gaskets complying with ASTM C 509, Type II, black; of profile and hardness required to maintain watertight seal. 1. Application: Use where soft compression gaskets will be compressed by inserting dense compression gaskets on opposite side of glazing or pressure applied by means of pressure-glazing stops on opposite side of glazing. C. Lock-Strip Gaskets: Neoprene extrusions in size and shape indicated, fabricated into frames with molded corner units and zipper lock-strips, complying with ASTM C 542, black. 2.5 GLAZING SEALANTS A. General: MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 08 80 00 - CARMEL CITY CENTER Date 03.26.012 GLAZING MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 1. Compatibility: Provide glazing sealants that are compatible with one another and with other materials they will contact, including glass products, seals of insulating-glass units, and glazing channel substrates, under conditions of service and application, as demonstrated by sealant manufacturer based on testing and field experience. 2. Suitability: Comply with sealant and glass manufacturers' written instructions for selecting glazing sealants suitable for applications indicated and for conditions existing at time of installation. 3. VOC Content: For sealants used inside of the weatherproofing system, not more than 250 g/L when calculated according to 40 CFR 59, Subpart D. 4. Colors of Exposed Glazing Sealants: As selected by Architect from manufacturer's full range. B. Glazing Sealant: Neutral-curing silicone glazing sealant complying with ASTM C 920, Type S, Grade NS, Class 25, Use NT. 1. Products: Subject to compliance with requirements, provide one of the following: a. Dow Corning Corporation; 799. b. GE Advanced Materials - Silicones; UltraGlaze SSG4000. c. Polymeric Systems, Inc.; PSI-631. d. Schnee-Morehead, Inc., an ITW company; SM5731 Poly-Glaze Plus. e. Tremco Incorporated; Proglaze SSG. C. Glazing Sealants for Fire-Resistive Glazing Products: Identical to products used in test assemblies to obtain fire-protection rating. 2.6 GLAZING TAPES A. Back-Bedding Mastic Glazing Tapes: Preformed, butyl-based, 100 percent solids elastomeric tape; non-staining and non-migrating in contact with non-porous 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. 2. AAMA 806.3 tape, for glazing applications in which tape is subject to continuous pressure. 3. AAMA 807.3 tape, for glazing applications in which tape is not subject to continuous pressure. 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: 1. AAMA 810.1, Type 1, for glazing applications in which tape acts as the primary sealant. 2. AAMA 810.1, Type 2, for glazing applications in which tape is used in combination with a full bead of liquid sealant. 2.7 MISCELLANEOUS GLAZING MATERIALS A. General: Provide products of material, size, and shape complying with referenced glazing standard, requirements of manufacturers of glass and other glazing materials for application indicated, and with a proven record of compatibility with surfaces contacted in installation. B. Cleaners, Primers, and Sealers: Types recommended by sealant or gasket manufacturer. MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 08 80 00 - CARMEL CITY CENTER Date 03.26.012 GLAZING MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 C. Setting Blocks: Elastomeric material with a Shore, Type A durometer hardness of 85, plus or minus 5. D. Spacers: Elastomeric blocks or continuous extrusions of hardness required by glass manufacturer to maintain glass lites in place for installation indicated. E. Edge Blocks: Elastomeric material of hardness needed to limit glass lateral movement (side walking). F. Cylindrical Glazing Sealant Backing: ASTM C 1330, Type O (open-cell material), of size and density to control glazing sealant depth and otherwise produce optimum glazing sealant performance. G. Perimeter Insulation for Fire-Resistive Glazing: Product that is approved by testing agency that listed and labeled fire-resistant glazing product with which it is used for application and fire- protection rating indicated. 2.8 FABRICATION OF GLAZING UNITS A. Fabricate glazing units in sizes required to fit openings indicated for Project, with edge and face clearances, edge and surface conditions, and bite complying with written instructions of product manufacturer and referenced glazing publications, to comply with system performance requirements. B. Clean-cut or flat-grind vertical edges of butt-glazed monolithic lites to produce square edges with slight chamfers at junctions of edges and faces. C. Grind smooth and polish exposed glass edges and corners. 2.9 MONOLITHIC-GLASS TYPES A. Glass Type: Clear float glass, fully tempered float glass. 1. Thickness: 6.0 mm. 2. Provide safety glazing labeling. B. Glass Type: Clear float glass, heat-strengthened float glass. 1. Thickness: 6.0 mm. 2. Provide safety glazing labeling. C. Glass Type: PPG Solarban 60, fully tempered float glass. 1. Thickness: 6.0 mm. 2. Provide safety glazing labeling. D. Glass Type: PPG Solarban 60, heat-strengthened float glass. 1. Thickness: 6.0 mm. 2. Provide safety glazing labeling. E. Glass Type: Polished wired glass. 1. Thickness: 6.0 mm. MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 08 80 00 - CARMEL CITY CENTER Date 03.26.012 GLAZING MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 2.10 INSULATING-GLASS TYPES A. Glass Type: Low-e-coated, clear insulating glass: Doors with glass panels, sliding glass doors, storefront glass panel units and curtain wall glass panel units. 1. Overall Unit Thickness: 1 inch. 2. Thickness of Each Glass Lite: 6.0 mm. 3. Outdoor Lite: Fully tempered float glass. 4. Inter-space Content: Air. 5. Indoor Lite: Fully tempered float glass. 6. Low-E Coating: Pyrolytic on second surface. 7. Visible Light Transmittance: 70 percent minimum. 8. Winter Nighttime U-Factor: 0.29 maximum. 9. Summer Daytime U-Factor: 0.27 maximum. 10. Solar Heat Gain Coefficient: 0.38 maximum. 11. Provide safety glazing labeling. B. Glass Type: Low-e-coated, clear insulating glass: Storefront glass panel units and curtain wall glass panel units. 1. Overall Unit Thickness: 1 inch. 2. Thickness of Each Glass Lite: 6.0 mm. 3. Outdoor Lite: Heat strengthened float glass. 4. Inter-space Content: Air. 5. Indoor Lite: Heat strengthened float glass. 6. Low-E Coating: Pyrolytic on second surface. 7. Visible Light Transmittance: 70 percent minimum. 8. Winter Nighttime U-Factor: 0.29 maximum. 9. Summer Daytime U-Factor: 0.27 maximum. 10. Solar Heat Gain Coefficient: 0.38 maximum. 11. Provide safety glazing labeling. 2.11 MONOLITHIC WIRED-GLASS UNITS A. Polished Wired-Glass Units: Form 1 (wired glass, polished both sides), Quality-Q6, Mesh 2 (M2) (Square), 6.0 mm thick. 1. Manufacturers: a. Asahi/AMA Glass Corp.; affiliated with AFG Industries, Inc. b. Central Glass Co., Ltd.; distributed by Northwestern Industries Inc. c. Pilkington Sales (North America) Ltd. 2.12 MONOLITHIC FLOAT-GLASS UNITS A. Uncoated Clear Float-Glass Units: Class 1 (clear) ultra-clear (low-iron) float glass and Kind FT (fully tempered) float glass. 1. Thickness: 6.0 mm. 2. Available Products: Subject to compliance with requirements, products that may be incorporated into the Work, include, but are not limited to, products produced by the following manufacturers. a. AFG Industries Inc. b. Indiana Art Glass. c. Berman Glass. d. Guardian Industries Inc. MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 08 80 00 - CARMEL CITY CENTER Date 03.26.012 GLAZING MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 e. Pilkington Building Products of America. PART 3 - EXECUTION 3.1 EXAMINATION A. Examine framing, glazing channels, and stops, with Installer present, 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 systems. 3. Minimum required face and edge clearances. 4. Effective sealing between joints of glass-framing members. B. Proceed with installation only after unsatisfactory conditions have been corrected. 3.2 PREPARATION A. Clean glazing channels and other framing members receiving glass immediately before glazing. Remove coatings not firmly bonded to substrates. B. Examine glazing units to locate exterior and interior surfaces. Label or mark units as needed so that exterior and interior surfaces are readily identifiable. Do not use materials that will leave visible marks in the completed work. 3.3 GLAZING, GENERAL A. 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. B. Adjust glazing channel dimensions as required by Project conditions during installation to provide necessary bite on glass, minimum edge and face clearances, and adequate sealant thicknesses, with reasonable tolerances. C. Protect glass edges from damage during handling and installation. Remove damaged glass from Project site and legally dispose of off Project site. Damaged glass is glass with edge damage or other imperfections that, when installed, could weaken glass and impair performance and appearance. D. Apply primers to joint surfaces where required for adhesion of sealants, as determined by preconstruction testing. E. 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. F. Do not exceed edge pressures stipulated by glass manufacturers for installing glass lites. MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 08 80 00 - CARMEL CITY CENTER Date 03.26.012 GLAZING MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 G. Provide spacers for glass lites where length plus width is larger than 50 inches. 1. Locate spacers directly opposite each other on both inside and outside faces of glass. Install correct size and spacing to preserve required face clearances, unless gaskets and glazing tapes are used that have demonstrated ability to maintain required face clearances and to comply with system performance requirements. 2. Provide 1/8-inch 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. H. 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. I. Set glass lites in each series with uniform pattern, draw, bow, and similar characteristics. J. Set glass lites with proper orientation so that coatings face exterior or interior as specified. K. Where wedge-shaped gaskets are driven into one side of channel to pressurize sealant or gasket on opposite side, provide adequate anchorage so gasket cannot walk out when installation is subjected to movement. L. 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. 3.4 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. 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 and then to jambs. Cover horizontal framing joints by applying tapes to jambs and 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. Do not remove release paper from tape until right before each glazing unit is installed. F. Apply heel bead of elastomeric sealant. G. 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. H. Apply cap bead of elastomeric sealant over exposed edge of tape. MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 08 80 00 - CARMEL CITY CENTER Date 03.26.012 GLAZING MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 3.5 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 weather tight 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 weather tight 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. 3.6 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. 3.7 LOCK-STRIP GASKET GLAZING A. Comply with ASTM C 716 and gasket manufacturer's written instructions. Provide supplementary wet seal and weep system unless otherwise indicated. 3.8 CLEANING AND PROTECTION A. Protect exterior glass from damage immediately after installation by attaching crossed streamers to framing held away from glass. Do not apply markers to glass surface. Remove nonpermanent labels and clean surfaces. B. Protect glass from contact with contaminating substances resulting from construction operations. If, despite such protection, contaminating substances do come into contact with glass, remove substances immediately as recommended in writing by glass manufacturer. MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 08 80 00 - CARMEL CITY CENTER Date 03.26.012 GLAZING MATT THE MILLER’S; CARMEL CITY CENTER; SUITE 101 C. 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; remove as recommended in writing by glass manufacturer. D. Remove and replace glass that is broken, chipped, cracked, or abraded or that is damaged from natural causes, accidents, and vandalism, during construction period. E. Wash glass 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. Wash glass as recommended in writing by glass manufacturer. END OF SECTION 08 80 00