Orange County NC Website
Browse       Search
DocuSign Envelope ID: B94F2D40-3B3C-47A7-86C2-6F1 B4F92C62C <br /> SECTION 08 80 00-GLAZING <br /> B. Insulating-Glass Units: Preassembled units consisting of sealed lites of glass separated by a dehydrated <br /> interspace, and complying with ASTM E 774 for Class CBA units and with requirements specified in this Article and <br /> in the Insulating-Glass Schedule at the end of Part 3. <br /> 1. Provide Kind HS (heat-strengthened) float glass in place of annealed glass where needed to resist thermal <br /> stresses induced by differential shading of individual glass lites and to comply with glass design requirements <br /> specified in "Performance Requirements" Article. Provide Kind FT (fully tempered) where safety glass is <br /> indicated. <br /> C. Overall Unit Thickness and Thickness of Each Lite: Dimensions indicated in the Insulating-Glass Schedule at the <br /> end of Part 3 are nominal and the overall thicknesses of units are measured perpendicularly from outer surfaces of <br /> glass lites at unit's edge. <br /> D. Sealing System: Dual seal, with primary and secondary sealants as follows: <br /> 1. Polyisobutylene and silicone. <br /> E. Spacer Specifications: Manufacturer's standard spacer material and construction. <br /> F. Spacer Specifications: Manufacturer's standard spacer material and construction complying with the following <br /> requirements: <br /> 1. Stainless steel. <br /> 2. Desiccant: Molecular sieve or silica gel, or blend of both. <br /> 3. Corner Construction: Manufacturer's standard corner construction. <br /> 2.2 ELASTOMERIC GLAZING SEALANTS <br /> A. General: Provide products of type indicated, complying with the following requirements: <br /> 1. Compatibility: Select glazing sealants that are compatible with one another and with other materials they will <br /> contact, including glass products, seals of insulating-glass units, and glazing channel substrates, under <br /> conditions of service and application, as demonstrated by sealant manufacturer based on testing and field <br /> experience. <br /> 2. Suitability: Comply with sealant and glass manufacturers' written instructions for selecting glazing sealants <br /> suitable for applications indicated and for conditions existing at time of installation. <br /> 3. Colors of Exposed Glazing Sealants: As selected by Architect from manufacturer's full range for this <br /> characteristic. <br /> B. Elastomeric Glazing Sealant Standard: Comply with ASTM C 920 and other requirements indicated for each liquid- <br /> applied, chemically curing sealant in the Glazing Sealant Schedule at the end of Part 3, including those referencing <br /> ASTM C 920 classifications for type,grade, class, and uses. <br /> 1. Additional Movement Capability: Where additional movement capability is specified in the Glazing Sealant <br /> Schedule, provide products with the capability, when tested for adhesion and cohesion under maximum cyclic <br /> movement per ASTM C 719,to withstand the specified percentage change in the joint width existing at time of <br /> installation and remain in compliance with other requirements in ASTM C 920 for uses indicated. <br /> 2.3 GLAZING TAPES <br /> A. Back-Bedding Mastic Glazing Tape: Preformed, butyl-based elastomeric tape with a solids content of 100 percent; <br /> nonstaining and nonmigrating in contact with nonporous surfaces; with or without spacer rod as recommended in <br /> writing by tape and glass manufacturers for application indicated; packaged on rolls with a release paper backing; <br /> and complying with ASTM C 1281 and AAMA 800 for products indicated below: <br /> 1. AAMA 806.3 tape,for glazing applications in which tape is subject to continuous pressure. <br /> 2. AAMA 807.3 tape,for glazing applications in which tape is not subject to continuous pressure. <br /> 2.4 GLAZING GASKETS <br /> A. Dense Compression Gaskets: Molded or extruded gaskets of material indicated below, complying with standards <br /> referenced with name of elastomer indicated below, and of profile and hardness required to maintain watertight <br /> seal: <br /> 1. EPDM,ASTM C 864. <br /> 2. Silicone,ASTM C 1115. <br /> 3. Thermoplastic polyolefin rubber,ASTM C 1115. <br /> 4. Any material indicated above. <br /> B. Soft Compression Gaskets: Extruded or molded, closed-cell, integral-skinned gaskets of material indicated below; <br /> complying with ASTM C 509,Type II, black; and of profile and hardness required to maintain watertight seal: <br /> 1. EPDM. <br /> 2. Silicone. <br /> ©BOOMERANG DESIGN#1835 08 80 00-3 510 Meadowlands Drive,Hillsborough, NC <br /> ORANGE COUNTY,NC 12/07/2018 <br />