08 81 00 GLAZING.doc

SECTION 08 81 00

GLAZING

PART 1 GENERAL

1.1 REFERENCES

1.1.1 The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only. Unless otherwise noted, the latest published version and/or revision shall be used.

1.1.1.1 AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

a. ANSI Z97.1 Safety Glazing Materials Used in Buildings

1.1.1.2 AMERICAN SOCIETY OF CIVIL ENGINEERS (ASCE)

a. ASCE 7 Minimum Design Loads for Buildings and Other Structures

1.1.1.3 ASTM INTERNATIONAL (ASTM)

a. ASTM C 1036 Standard Specification for Flat Glass

b. ASTM C 1048 Standard Specification for Heat-Treated Flat Glass - Kind HS, Kind FT Coated and Uncoated Glass

c. ASTM C 1172 Standard Specification for Laminated Architectural Flat Glass

d. ASTM C 1184 Standard Specification for Structural Silicone Sealants

e. ASTM C 509 Elastomeric Cellular Preformed Gasket and Sealing Material

f. ASTM C 669 Glazing Compounds for Back Bedding and Face Glazing of Metal Sash

g. ASTM C 864 Dense Elastomeric Compression Seal Gaskets, Setting Blocks, and Spacers

h. ASTM C 920 Standard Specification for Elastomeric Joint Sealants

i. ASTM D 2287 Nonrigid Vinyl Chloride Polymer and Copolymer Molding and Extrusion Compounds

j. ASTM D 395 Standard Test Methods for Rubber Property - Compression Set

k. ASTM D 4802 Poly(Methyl Methacrylate) Acrylic Plastic Sheet

l. ASTM D 673 Mar Resistance of Plastics

m. ASTM E 119 Standard Test Methods for Fire Tests of Building Construction and Materials

n. ASTM E 1300 Determining Load Resistance of Glass in Buildings

o. ASTM E 2010 Positive Pressure Fire Tests of Window Assemblies

p. ASTM E 413 Rating Sound Insulation

q. ASTM E 773 Accelerated Weathering of Sealed Insulating Glass Units

r. ASTM E 774 Classification of the Durability of Sealed Insulating Glass Units

s. ASTM E 90 Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements

1.1.1.4 GLASS ASSOCIATION OF NORTH AMERICA (GANA)

a. GANA Glazing Manual Glazing Manual

b. GANA Sealant Manual Sealant Manual

c. GANA Standards Manual Tempering Division's Engineering Standards Manual

1.1.1.5 INSULATING GLASS MANUFACTURERS ALLIANCE (IGMA)

a. IGMA TB-3001 Guidelines for Sloped Glazing

b. IGMA TM-3000 Glazing Guidelines for Sealed Insulating Glass Units

c. IGMA TR-1200 Commercial Insulating Glass Dimensional Tolerances

1.1.1.6 NATIONAL FENESTRATION RATING COUNCIL (NFRC)

a. NFRC 100 Procedure for Determining Fenestration Product U-Factors

b. NFRC 200 Procedure for Determining Fenestration Product Solar Heat Gain Coefficient and Visible Transmittance at Normal Incidence

1.1.1.7 NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

a. NFPA 252 Standard Methods of Fire Tests of Door Assemblies

b. NFPA 257 Fire Test for Window and Glass Block Assemblies

c. NFPA 80 Standard for Fire Doors and Other Opening Protectives

1.1.1.8 U.S. ENVIRONMENTAL PROTECTION AGENCY (EPA)

a. Energy Star Energy Star Energy Efficiency Labeling System

1.1.1.9 U.S. GENERAL SERVICES ADMINISTRATION (GSA)

a. CID A-A-378 Putty Linseed Oil Type, (for Wood-Sash-Glazing

1.1.1.10 U.S. GREEN BUILDING COUNCIL (USGBC)

a. LEED Leadership in Energy and Environmental Design(tm) Green Building Rating System for New Construction (LEED-NC)

1.1.1.11 U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

a. 16 CFR 1201 Safety Standard for Architectural Glazing Materials

1.1.1.12 UNDERWRITERS LABORATORIES (UL)

a. UL 752 Bullet-Resisting Equipment

b. UL MEAPD Mechanical Equipment and Associated Products Directory

1.1.1.13 UNIFIED FACILITIES CRITERIA (UFC)

a. UFC 4-010-01 DoD Minimum Antiterrorism Standards for Buildings

1.2 1.2 SUBMITTALS

1.2.1 Government approval may be required on any of the following items. Items requiring submittals will be listed on the AF Form 66. Provide copies of all submittals per the requirements in Section 01 33 00, Submittal Procedures, or as listed on the AF Form 66.

1.2.1.1 SD-02 Shop Drawings

a. Installation

(1) Drawings showing complete details of the proposed setting methods, mullion details, edge blocking, size of openings, frame details, materials, and types and thickness of glass.

b. Control Tower Insulating Glass

(1) Drawings showing complete details of the proposed setting methods, mullion details, edge blocking, size of openings, frame details, materials, and types and thickness of glass.

1.2.1.2 SD-03 Product Data

a. Insulating Glass

(1) Documentation for Energy Star qualifications.

b. Plastic Glazing

c. Glazing Accessories

(1) Manufacturer's descriptive product data, handling and storage recommendations, installation instructions, and cleaning instructions.

d. Local/Regional Materials;

(1) Documentation indicating distance between manufacturing facility and the project site. Indicate distance of raw material origin from the project site. Indicate relative dollar value of local/regional materials to total dollar value of products included in project.

1.2.1.3 SD-04 Samples

a. Insulating Glass

b. Plastic Sheet

c. Glazing Compound

d. Glazing Tape

e. Sealant

(1) Two 8 x 10 inch samples of each of the following: tinted glass, patterned glass, heat-absorbing glass, and insulating glass units.

(2) Three samples of each indicated material. Samples of plastic sheets shall be minimum 5 by 7 inches.

1.2.1.4 SD-07 Certificates

a. Insulating Glass

b. Glazing Accessories

(1) Certificates from the manufacturer attesting that the units meet the luminous and solar radiant transmission requirements for heat absorbing glass.

1.2.1.5 SD-08 Manufacturer's Instructions

a. Setting and sealing materials

b. Glass setting

(1) Submit glass manufacturer's recommendations for setting and sealing materials and for installation of each type of glazing material specified. Include cleaning instructions for plastic sheets.

1.2.1.6 SD-11 Closeout Submittals

a. Local/Regional Materials;

1.3

PERFORMANCE REQUIREMENTS

1.3.1 Where applicable or required by the Statement of Work (SOW), exterior glazing, window framing, connections, and supporting structural elements shall comply with Standards 10 of the UFC 4-010-01, DoD Minimum Antiterrorism Standards for Buildings.

1.4 SYSTEM DESCRIPTION

1.4.1 Glazing systems shall be fabricated and installed watertight and airtight to withstand thermal movement and wind loading without glass breakage, gasket failure, deterioration of glazing accessories, and defects in the work. Glazed panels shall comply with the safety standards, as indicated in accordance with ANSI Z97.1. Glazed panels shall comply with indicated wind/snow loading in accordance with ASTM E 1300.

1.5 DELIVERY, STORAGE, AND HANDLING

1.5.1 Deliver products to the site in unopened containers, labeled plainly with manufacturers' names and brands. Store glass and setting materials in safe, enclosed dry locations and do not unpack until needed for installation. Handle and install materials in a manner that will protect them from damage.

1.6 ENVIRONMENTAL REQUIREMENTS

1.6.1 Do not start glazing work until the outdoor temperature is above 40 degrees F and rising, unless procedures recommended by the glass manufacturer and approved by the Contracting Officer are made to warm the glass and rabbet surfaces. Provide ventilation to prevent condensation of moisture on glazing work during installation. Do not perform glazing work during damp or rainy weather.

1.7 SUSTAINABLE DESIGN REQUIREMENTS

1.7.1 Local/Regional Materials

1.7.1.1 Use materials or products extracted, harvested, or recovered, as well as manufactured, within a 500 mile radius from the project site, if available from a minimum of three sources.

1.8 WARRANTY

1.8.1 Warranty for Insulating Glass Units

1.8.1.1 Warranty insulating glass units against development of material obstruction to vision (such as dust, fogging, or film formation on the inner glass surfaces) caused by failure of the hermetic seal, other than through glass breakage, for a 10-year period following acceptance of the work. Provide new units for any units failing to comply with terms of this warranty within 45 working days after receipt of notice from the Government. For control tower units, the warranty period shall be 10 years; warranty shall be signed by the manufacturer.

1.8.2 Warranty for Polycarbonate Sheet

1.8.2.1 For a 5-year period following acceptance of the work:

a. Warranty Type I, Class A (UV stabilized) sheets against breakage;

b. Warranty Type III (coated, mar-resistant) sheets against breakage and against coating delamination;

c. Warranty Type IV (coated sheet) against breakage and against yellowing;

d. Warranty extruded polycarbonate profile sheet against breakage.

1.8.2.2 For a 10-year period following acceptance of the work, warranty Type IV against yellowing and loss of light transmission.

PART 2 PRODUCTS

2.1 GLASS

2.1.1 ASTM C 1036, unless specified otherwise. In doors and sidelights, provide safety glazing material conforming to 16 CFR 1201.

2.1.1.1 Clear Glass

a. For interior glazing (i.e., pass and observation windows), 1/4 inch thick glass should be used.

b. Type I, Class 1 (clear), Quality q4 (A). Provide for glazing openings not indicated or specified otherwise. Use double-strength sheet glass or 1/8 inch float glass for openings up to and including 15 square feet, 3/16 inch for glazing openings over 15 square feet but not over 30 square feet, and 1/4 inch for glazing openings over 30 square feet but not over 45 square feet.

2.1.1.2 Annealed Glass

a. Annealed glass shall be Type I transparent flat type, Class 1 - clear or tinted, Quality q3 - glazing select, light transmittance, and shading coefficient as indicated or as required by the C.O., conforming to ASTM C 1036. Color shall be as indicated on the drawings or as selected.

2.1.1.3 Heat-Absorbing Glass

a. Type I, Class 2 (heat absorbing and light reducing), Quality q3 (select), thickness, color, light transmittance, and shading coefficient, as indicated or as required by the C.O., conforming to ASTM C 1036. 1/4 inch thickness.

2.1.1.4 Tempered Glass

a. ASTM C 1048, Kind FT (fully tempered), Condition A (uncoated), Type I, Class 1 (transparent) or 2 (tinted heat absorbing), Quality q3. Thickness, light transmittance, and shading coefficient as indicated or as required by the C.O., conforming to ASTM C 1048 and GANA Standards Manual. Color shall be as indicated. Provide wherever safety glazing material is indicated or specified.

2.1.1.5 Heat-Strengthened Glass

a. ASTM C 1048, Kind HS (heat strengthened), Condition A (uncoated), Type I, Class 1 (clear) or 2 (tinted heat absorbing), Quality q3.

2.1.1.6 Fire/Safety Rated Glass

a. Fire/safety rated glass shall be laminated Type I transparent flat type, Class 1-clear. Glass shall have the indicated rating when tested in accordance with ASTM E 119. Glass shall be permanently labeled with appropriate markings.

2.1.1.7 Tinted (Light-Reducing) Glass

a. Tinted (light-reducing) glass shall be Type I transparent flat type, Class 3-tinted, Quality q3 - glazing select, .50 percent light transmittance, .35 percent shading coefficient, as indicated or as required by the C.O., conforming to ASTM C 1036. Color shall be as indicated.

2.2 INSULATING GLASS UNITS

2.2.1 Two panes of glass separated by a dehydrated, 1/2 inch airspace, and hermetically sealed. Glazed systems (including frames) shall be Bronze tinted Low “E” Energy Star labeled products as appropriate to climate zone and as applicable to window type, with a whole-window Solar Heat Gain Coefficient (SHGC) maximum of .40 determined according to NFRC 200 procedures. Glazed panels and curtain walls shall have a U-factor maximum of .35 Btu per square foot x hr x degree F in accordance with NFRC 100. Glazing shall meet or exceed a luminous efficacy of 1.0. Glazed panels shall be rated for not less than 30 Sound Transmission Class (STC) when tested for laboratory sound transmission loss according to ASTM E 90 and determined by ASTM E 413. Dimensional tolerances shall be as specified in IGMA TR-1200. The units shall meet CBA Grade requirement when tested in accordance with ASTM E 773 and ASTM E 774, Class A. Spacer shall be black, roll-formed, with bent or tightly welded or keyed and sealed joints to completely seal the spacer periphery and eliminate moisture and hydrocarbon vapor transmission into airspace through the corners. Primary seal shall be compressed polyisobutylene and the secondary seal shall be a specially formulated silicone.

2.2.1.1 Buildings

a. The inner light shall be ASTM C 1172, clear annealed flat glass Type I, Class I, Quality q3, ASTM C 1036, Type I, Class 1, Quality q4, or ASTM C 1048, Grade B (fully tempered), as indicated or as required by the C.O., Style I (uncoated), Type I, Class 1 (transparent), Quality q4, thickness as indicated. The outer light shall be ASTM C 1036, Type I, Class 1 (transparent), 2 (tinted heat absorbing), 2 (solar-reflective), Quality q4, ASTM C 1048, Grade B (fully tempered), Style I (uncoated), Type I, Class 1 (clear) or 2 (tinted heat absorbing), Quality q4, thickness as indicated.

2.2.1.2 Low Emissivity Insulating Glass

a. Interior and exterior glass panes for Low-E insulating units shall be Type I annealed flat glass, Class 1-clear or 2-tinted with anti-reflective low-emissivity coating on No. 2 surface (inside surface of exterior pane), Quality q3 - glazing select, conforming to ASTM C 1036. Glass performance shall be U-Value/Winter Nighttime .35, shading coefficient .40. Color shall be as indicated on the drawings or as selected.

2.3 SETTING AND SEALING MATERIALS

2.3.1 Provide as specified in the GANA Glazing Manual, IGMA TM-3000, IGMA TB-3001, and manufacturer's recommendations, unless specified otherwise herein. Do not use metal sash putty, nonskinning compounds, nonresilient preformed sealers, or impregnated preformed gaskets. Materials exposed to view and unpainted shall be gray or neutral color.

2.3.1.1 Putty and Glazing Compound

a. Glazing compound shall conform to ASTM C 669 for face-glazing metal sash. Putty shall be linseed oil type conforming to CID A-A-378for face-glazing primed wood sash. Putty and glazing compounds shall not be used with insulating glass or laminated glass.

2.3.1.2 Glazing Compound

a. ASTM C 669. Use for face glazing metal sash. Do not use with insulating glass units or laminated glass.

2.3.1.3 Sealants

a. Provide elastomeric and structural sealants.

(1) Elastomeric Sealant

(a) ASTM C 920, Type S, Grade NS, Class 12.5, Use G. Use for channel or stop glazing wood and metal sash. Sealant shall be chemically compatible with setting blocks, edge blocks, and sealing tapes, and with plastic sheet. Color of sealant shall be white.

(2) Structural Sealant

(a) ASTM C 1184, Type S.

2.3.1.4 Joint Backer

a. Joint backer shall have a diameter size at least 25 percent larger than joint width; type and material as recommended in writing by glass and sealant manufacturer.

2.3.1.5 Preformed Channels

a. Neoprene, vinyl, or rubber, as recommended by the glass manufacturer for the particular condition. Channels for bullet-resistant glass shall be synthetic rubber, ASTM C 864, not less than 1/4 inch thick and sufficiently resilient to accommodate expansion and contraction while maintaining a vaportight seal between glass and frame. Channels shall be chemically compatible with plastic sheet.

2.3.1.6 Sealing Tapes

a. Preformed, semisolid, PVC-based material of proper size and compressibility for the particular condition, complying with ASTM D 2287. Use only where glazing rabbet is designed for tape and tape is recommended by the glass or sealant manufacturer. Provide spacer shims for use with compressible tapes. Tapes shall be chemically compatible with the product being set.

2.3.1.7 Setting Blocks and Edge Blocks

a. Closed-cell neoprene setting blocks shall be dense extruded type conforming to ASTM C 509 and ASTM D 395, Method B, Shore A durometer between 70 and 90. Edge blocking shall be Shore A durometer of 50 (+ or - 5). Silicone setting blocks shall be required when blocks are in contact with silicone sealant. Profiles, lengths and locations shall be as required and recommended in writing by glass manufacturer. Block color shall be black.

2.3.1.8 Glazing Gaskets

a. Glazing gaskets shall be extruded with continuous integral locking projection designed to engage into metal glass holding members to provide a watertight seal during dynamic loading, building movements and thermal movements. Glazing gaskets for a single glazed opening shall be continuous one-piece units with factory-fabricated injection-molded corners free of flashing and burrs. Glazing gaskets shall be in lengths or units recommended by manufacturer to ensure against pull-back at corners. Glazing gasket profiles shall be as indicated on drawings.

(1) Fixed Glazing Gaskets

(a) Fixed glazing gaskets shall be closed-cell (sponge) smooth extruded compression gaskets of cured elastomeric virgin neoprene compounds conforming to ASTM C 509, Type 2, Option 1.

(2) Wedge Glazing Gaskets

(a) Wedge glazing gaskets shall be high-quality extrusions of cured elastomeric virgin neoprene compounds, ozone resistant, conforming to ASTM C 864, Option 1, Shore A durometer between 65 and 75.

(3) Aluminum Framing Glazing Gaskets

(a) Glazing gaskets for aluminum framing shall be permanent, elastic, non-shrinking, non-migrating, watertight and weathertight.

2.3.1.9 Accessories

a. Provide as required for a complete installation, including glazing points, clips, shims, angles, beads, and spacer strips. Provide noncorroding metal accessories. Provide primer-sealers and cleaners as recommended by the glass and sealant manufacturers.

PART 3 EXECUTION

3.1 PREPARATION

3.1.1 Preparation, unless otherwise specified or approved, shall conform to applicable recommendations in the GANA Glazing Manual, GANA Sealant Manual, IGMA TB-3001, IGMA TM-3000, and manufacturer's recommendations. Determine the sizes to provide the required edge clearances by measuring the actual opening to receive the glass. Grind smooth in the shop glass edges that will be exposed in finish work. Leave labels in place until the installation is approved, except remove applied labels on heat-absorbing glass and on insulating glass units as soon as glass is installed. Securely fix movable items or keep in a closed and locked position until glazing compound has thoroughly set.

3.2 GLASS SETTING

3.2.1 Shop glaze or field glaze items to be glazed using glass of the quality and thickness specified or indicated. Glazing, unless otherwise specified or approved, shall conform to applicable recommendations in the GANA Glazing Manual, GANA Sealant Manual, IGMA TB-3001, IGMA TM-3000, and manufacturer's recommendations. Aluminum windows, wood doors, and wood windows may be glazed in conformance with one of the glazing methods described in the standards under which they are produced, except that face puttying with no bedding will not be permitted. Handle and install glazing materials in accordance with manufacturer's instructions. Use beads or stops which are furnished with items to be glazed to secure the glass in place. Verify products are properly installed, connected, and adjusted.

3.2.1.1 Sheet Glass

a. Cut and set with the visible lines or waves horizontal.

3.2.1.2 Insulating Glass Units

a. Do not grind, nip, or cut edges or corners of units after the units have left the factory. Springing, forcing, or twisting of units during setting will not be permitted. Handle units so as not to strike frames or other objects. Installation shall conform to applicable recommendations of IGMA TB-3001 and IGMA TM-3000.

3.2.1.3 Installation of Heat-Absorbing Glass

a. Glass shall have clean-cut, factory-fabricated edges. Field cutting will not be permitted.

3.3 CLEANING

3.3.1 Clean glass surfaces and remove labels, paint spots, putty, and other defacement as required to prevent staining. Glass shall be clean at the time the work is accepted. Clean plastic sheet in accordance with manufacturer's instructions.

3.4 PROTECTION

3.4.1 Glass work shall be protected immediately after installation. Glazed openings shall be identified with suitable warning tapes, cloth or paper flags, attached with non-staining adhesives. Reflective glass shall be protected with a protective material to eliminate any contamination of the reflective coating. Protective material shall be placed far enough away from the coated glass to allow air to circulate to reduce heat buildup and moisture accumulation on the glass. Upon removal, separate protective materials for reuse or recycling. Glass units which are broken, chipped, cracked, abraded, or otherwise damaged during construction activities shall be removed and replaced with new units.

3.5 WASTE MANAGEMENT

3.5.1 Disposal and recycling of waste materials, including corrugated cardboard recycling, shall be in accordance with the Waste Management Plan. Upon removal, separate protective materials and reuse or recycle. Close and seal tightly all partly used sealant containers and store protected in well-ventilated, fire-safe area at moderate temperature.

END OF SECTION 08 81 00

PAGE

PAGE

QSEU 09-0402

08 81 00-1