Addendum2forFBO.pdf

Fuel Systems/Corrosion Control Hangar & Shops

130th Airlift Wing Charleston WV Project # LYBH009134

RFP # W912L8-09-R-0004

Addendum 2 August 12, 2009

130th Airlift Wing SUMMARY OF CHANGES TO SPECIFICATIONS – ADDENDUM 2 West Virginia Air National Guard Fuel System/Corrosion Control Hangar and Shops Yeager Airport, Charleston, West Virginia LYBH009134

The Benham Companies, LLC 1 of 1 August 12, 2009

Specification Section Change

1.

Part 2, Paragraph 2.1 Window Units; added the following paragraph:

Where inner and outer window units are indicated in the same opening (for sound attenuation at second floor office and conference rooms), only the inner unit must be blast resistant.

2.

08565 BLAST RESISTANT

ALUMINUM-FRAMED GLASS

WINDOWS

Deleted reference to Construction Waste Management as it is covered in Specification Section 01572 CONSTRUCTION

AND DEMOLITION WASTE MANAGEMENT.

3.

Subparagraph 2.2.1 Insulating Glass Assembly for Glass Type A, added the following to Item A: “…with anti-reflective low-emessivity coating on No. 2 surface.”

4.

Subparagraph 2.2.1 Insulating Glass Assembly for Glass Type A, added Item D: “Glass performance shall be R- Value/Winter Nighttime 0.24, shading coefficient 0.43.”

5.

Subparagraph 2.2.2 Insulating Glass Assembly for Glass Type B; changed Item A to read: “Exterior Lite: 1/4 inch laminate - 1/8 inch clear, 0.030 inch clear PVB, 1/8 inch clear with anti-reflective low-emissivity coating on No. 2 surface.”

6.

Subparagraph 2.2.2 Insulating Glass Assembly for Glass Type B; Item C, changed 0.030 inch to 0.060 inch.

7.

Subparagraph 2.2.2 Insulating Glass Assembly for Glass Type B; Added Item D: “Glass performance shall be R- Value/Winter Nighttime 0.24, shading coefficient 0.43.”

8. Deleted Subparagraph 2.3.1 Putty and Glazing Compound

9.

08800 GLAZING

Deleted Subparagraph 2.3.2 Glazing Compound.

END OF CHANGES

Fuel System/Corrosion Control Hangar & Shops LYBH009134 WV National Guard, 130th Airlift Wing, Charleston, WV ADDENDUM 2

SECTION 08565

BLAST RESISTANT ALUMINUM-FRAMED GLASS WINDOWS

04/06

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

ALUMINUM ASSOCIATION (AA)

AA DAF-45 (2003) Designation System for Aluminum Finishes

AMERICAN ARCHITECTURAL MANUFACTURERS ASSOCIATION (AAMA)

AAMA 101 (2005) Voluntary Specifications for Aluminum, Vinyl (PVC) and Wood Windows and Glass Doors

AAMA 1503 (1998) Voluntary Test Method for Thermal Transmittance and Condensation Resistance of Windows, Doors and Glazed Wall Sections

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

ANSI Z97.1 (2004) Safety Glazing Materials Used in Buildings

ASTM INTERNATIONAL (ASTM)

ASTM C 509 (2000) Elastomeric Cellular Preformed Gasket and Sealing Material

ASTM C 920 (2005) Elastomeric Joint Sealants

ASTM E 1300 (2007e1) Determining Load Resistance of Glass in Buildings

ASTM E 283 (2004) Determining the Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors Under Specified Pressure Differences Across the Specimen

ASTM E 331 (2000; R 2009) Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Uniform Static Air Pressure Difference

ASTM F 1642 (2004) Standard Test Method for Glazing and Glazing Systems Subject to Airblast Loadings

ASTM F 2248 (2003) Standard Practice for Specifying an

SECTION 08565 Page 1

Equivalent 3-Second Duration Design Loading for Blast Resistant Glazing Fabricated with Laminated Glass

GLASS ASSOCIATION OF NORTH AMERICA (GANA)

GANA Glazing Manual (2004) Glazing Manual

U.S. DEPARTMENT OF DEFENSE (DOD)

UFC 4-010-01 (8 October 2003, Including change 1, 22 January 2007) Department of Defense Minimum Antiterrorism Standards for Buildings

U.S. GREEN BUILDING COUNCIL (USGBC)

LEED (2002; R 2005) Leadership in Energy and Environmental Design(tm) Green Building Rating System for New Construction (LEED-NC v2.2)

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for Contractor Quality Control approval. The following shall be submitted in accordance with Section 01330

GENERAL REQUIREMENTS:

SD-02 Shop Drawings

Window units; G

Submit drawings indicating elevations of windows, full-size sections, thickness of metal, fastenings, proposed method of anchoring, size and spacing of anchors, details of construction, complete details of setting methods and materials for each type of glazing material, details of hardware, mullion details, method and materials for weatherstripping, support conditions for the glass, material and method of attaching subframes, casings, sills, trim, installation details, and other related items.

SD-03 Product Data

Window units; G

Hardware

Setting materials

Weatherstripping

Submit window frame data for each type and finish.

SD-04 Samples

Window units

Submit anodic coating color samples.

SECTION 08565 Page 2

SD-10 Operation and Maintenance Data

Window units, Data Package 1; G

Submit data package in accordance with Section 01330, GENERAL

REQUIREMENTS.

SD-11 Closeout Submittals

LEED Documentation; G (LEED)

Refer to Section 01332 LEED® DOCUMENTATION. Comply with submittal documentation requirements specified in USGBC LEED NC V2.2 Reference Guide. Include documentation in LEED documentation notebook. In the event of a discrepancy between the requirements stated in the LEED NC V2.2 Reference Guide and the requirements stated below, the Submittal Documentation requirements stated in the LEED NC V2.2 Reference Guide shall govern except that where an "optional narrative" is stated, the narrative shall be required for this project.

Material and Resources Credit 4.1 and 4.2 Recycled Content - Product Data: Provide total project materials costs (Divisions 02

- 10) or provide total project cost for Divisions 02 -10 to apply 45% default materials value, provide tabulation of each material used that is tracked for recycled content, and narrative describing any special circumstances regarding credit approach.

Materials and Resources Credit 5.1 and 5.2 Regional Materials - Product Data: Provide project total cost for application of 45% default factor or total material cost. Complete regional material calculation table for each tracked material, and narrative describing any special circumstances regarding credit approach.

Environmental Quality Credit 4.1 Low Emitting Materials - Adhesives & Sealants: Provide list of each indoor adhesive, sealant, sealant primer and aerosol adhesive used on the project including manufacturer's name, product name, VOC data, etc.

Provide narrative describing special circumstances.

1.3 SYSTEM DESCRIPTION

Glazed aluminum 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.

Glazed panels including glazing and anchorage shall comply with UFC 4-010-01.

Glazing thicknesses and other details indicated are minimums. Design elements to comply with all requirements.

1.3.1 Blast Resistant Glazing and Glazed Aluminum System Requirements

a. Provide systems designed to meet or exceed the requirements of

UFC 4-010-01.

SECTION 08565 Page 3

b. Design Equivalent 3-Second Design Loading determined in accordance with ASTM F 2248: 50 psf.

c. Blast resistant glazing shall be adhered to its supporting frame using structural silicone sealant or adhesive glazing tape. The width of the structural silicone sealant bead shall be at least equal to but not larger than two times the thickness designation of the glass to which it adheres. The width of the glazing tape shall be at least equal to two times but not more than four time the thickness designation of the glass to which it adheres. The structural silicone bead shall be applied to both sides of a single pane and only to the inboard side of insulating glass units.

d. The framing members shall restrict deflections of edges of blast resistant glazing they support to L/160 under the equivalent 3-second duration design loading, where L denotes the length of the supported edge.

e. Refer to ASTM F 2248 for glazing frame bite requirements for structurally glazed windows.

f. The framing system supporting the blast resistant glazing shall attach mechanically to the structural framing system with fasteners that will resist forces generated by a uniform load acting on the blast resistant glazing that has a magnitude of at least 2.0 times the magnitude of the 3-second equivalent design load. The connection design shall be based on allowable stress levels.

g. As an alternative to the design requirements indicated, window and glazed door systems may be dynamically tested to demonstrate performance equivalent to or better than the hazard rating associated with the level of protection indicated in Table 2-1 of UFC 4-010-01.

Testing of the window or glazed door system including connections shall be in accordance with UFC 4-010-01 and ASTM F 1642.

1.3.2 Structural

Shapes and thicknesses of framing members shall be sufficient to withstand the design wind load indicated with a deflection of not more than 1/175 times the length of the member and a safety factor of not less than 1.65.

1.3.3 Air Infiltration

When tested in accordance with ASTM E 283, air infiltration shall not exceed 0.10 cubic feet per minute per square foot of fixed area at a test pressure of 6.24 pounds per square foot (50 miles per hour wind).

1.3.4 Water Penetration

When tested in accordance with ASTM E 331, there shall be no water penetration at a pressure of 8 pounds per square foot of fixed area.

1.3.5 Thermal Performance

Thermal Transmittance (U-factor): Fixed glazing and framing areas shall have a U-factor of not more than 0.58 Btu/square foot per hour per Degree F in accordance with AAMA 1503.

SECTION 08565 Page 4

1.3.6 Thermal Barrier

The thermal barrier shall isolate the aluminum exposed to the exterior from the aluminum exposed to the interior with a material of low thermal conductance.

1.4 QUALITY ASSURANCE

1.4.1 Label

Each prime window unit shall bear the AAMA Label warranting that the product complies with AAMA 101. Certificates of Compliance attesting that the prime window units meet the requirements of AAMA 101 will be acceptable in lieu of product labeling.

1.4.2 Independent Testing

Testing shall be performed by an independent testing laboratory (certified by the Contracting Officer) and test report shall be signed by a registered professional engineer and shall include results from tests in the calculations.

1.5 DELIVERY, STORAGE, AND HANDLING

a. Deliver products to the site in unopened containers, labeled plainly with manufacturers' name and brands. Deliver window assemblies in an undamaged condition. Exercise care in handling and hoisting windows during transportation and at the job site.

Store windows and components out of contact with the ground, under a weathertight covering, so as to prevent bending, warping, or otherwise damaging the windows.

b. Finished surfaces shall be protected during shipping and handling using the manufacturer's standard method, except that no coatings or lacquers shall be applied to surfaces to which sealants, caulking, or glazing compounds must adhere.

1.6 ENVIRONMENTAL CONDITIONS

Do not start glazing work until the outdoor temperature is above 40 degrees F and rising unless approved provisions are made to warm the glass and rabbet surfaces. Provide sufficient ventilation to prevent condensation of moisture on glazing work during installation. Do not perform glazing work if moisture collects on window assemblies or during rainy weather.

PART 2 PRODUCTS

2.1 WINDOW UNITS

Prime window frames shall conform to AAMA 101 and the requirements specified herein. Provide windows of types, grades, performance classes, combinations, and sizes indicated or specified. Provide windows to accommodate hardware, glass, weatherstripping and accessories. Each window shall be a complete factory-assembled unit with glass factory or field installed.

Where inner and outer window units are indicated in the same opening (for sound attenuation at second floor office and conference rooms), only the inner unit must be blast resistant.

SECTION 08565 Page 5

2.2 WEATHERSTRIPPING

Weatherstripping shall conform to AAMA 101.

2.3 GLAZING

Glazing shall be as specified in Section 08800 GLAZING. Metal glazing beads, vinyl inserts and glazing gaskets shall be provided for securing glass. Glass stops shall be tamper proof on exterior side.

2.4 SETTING MATERIALS

Provide types required for the applicable setting method specified in the GANA Glazing Manual, unless specified otherwise herein. Do not use metal sash putty, non-skinning compounds, nonresilient preformed sealers, or impregnated preformed gaskets. Materials exposed to view and unpainted shall be gray or neutral color.

2.4.1 Elastomeric Sealant

ASTM C 920, Type S or M, Grade NS, Class 12.5, Use NT. Use for channel or stop glazing and metal sash. Sealant shall be chemically compatible with setting blocks, edge blocks, and sealing tapes. Color of sealant shall be black.

2.4.2 Sealing Tapes, Beads or Gaskets

Gaskets or beads shall be at least 3/8 inch wide with a Shore "A" durometer hardness of 50 and conform to ASTM C 509.

2.4.3 Setting Blocks and Edge Blocks

Use neoprene of 70 to 90 Shore "A" durometer hardness, chemically compatible with sealants used, and of sizes recommended by the glass manufacturer.

2.4.4 Accessories

Use accessories as required to provide 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.

2.5 WINDOW ASSEMBLIES

Window units shall conform to AAMA 101.

2.5.1 Provisions for Glazing

Provide windows and rabbets suitable for specified glass thickness. Minimum edge clearance shall be 1/2 inch. Nominal bite shall be 1 inch. Minimum face clearance shall be 3/8 inch. Provide sash for glazing and for securing glass with glazing channels and glazing compound.

2.5.2 Sealant, Gaskets, and Beads

Sealant, gaskets, and beads shall be continuous around the perimeter of the glass.

SECTION 08565 Page 6

2.5.3 Weatherstripping

Provide for ventilating sections of windows to ensure a weathertight seal meeting the infiltration requirements specified in AAMA 101. Provide factory-applied weatherstripping that can be replaced by field repair mechanics. Use molded vinyl, molded or molded-expanded neoprene for weatherstripping for compression contact surfaces. Do not use neoprene or polyvinyl chloride weatherstripping where it will be exposed to direct sunlight.

2.5.4 Fasteners

Provide flathead, cross-recessed type, exposed head screws and bolts with standard threads for use on windows, trim, and accessories. Screw heads shall finish flush with adjoining surfaces. Self-tapping sheet-metal screws are not acceptable for material more than 1/16 inch thick.

2.5.5 Drips and Weep Holes

Provide continuous drips over heads of top ventilators. Where fixed windows adjoin ventilators, drips shall be continuous across tops of fixed windows. Provide drips and weep holes as required to return water to the outside.

2.5.6 Accessories

Provide windows complete with necessary hardware, fastenings, clips, fins, anchors, glazing beads, and other appurtenances necessary for complete installation and proper operation.

2.5.7 Hardware

The item, type, and functional characteristics shall be the manufacturer's standard for the particular window type and shall conform to AAMA 101.

Provide hardware that functions after the window assembly has withstood the application of the design blast pressure causing the development of a static design resistance, ru, uniformally applied over both glazing and frame as defined in paragraph entitled "Certificates of Compliance" of this section. Equip operating ventilators with a lock or latching device which can be secured from the inside.

2.5.8 Anchors

Provide concealed anchors of the type recommended by the window manufacturer for the specific type of construction. Anchors and fasteners shall be compatible with the window and the adjoining construction. Provide a minimum of three anchors for each jamb located approximately 6 inches from each end and at midpoint.

2.5.9 Finishes

Exposed aluminum surfaces shall be factory finished with an anodic coating. Windows shall have the same finish.

2.5.9.1 Anodic Coating

Clean exposed aluminum surfaces and provide an anodized finish conforming to AA DAF-45. Finish shall be as selected by the Contracting Officer from

SECTION 08565 Page 7 the color selection samples.

PART 3 EXECUTION

3.1 INSTALLATION

3.1.1 Method of Installation

Install in accordance with the window manufacturer's printed instructions and details. Set windows at proper elevation, location, and reveal. Brace properly to prevent distortion and misalignment. Bed screws or bolts in sill members, joints at mullions, contacts of windows with sills, built-in fins, and subframes in mastic sealant of a type recommended by the window manufacturer. Install windows in a manner that will prevent entrance of water. Fasten hardware to windows.

3.1.2 Glass Setting

Items to be glazed shall be either shop or field glazed using glass of the quality and thickness specified or indicated. Preparation and glazing, unless otherwise approved, shall conform to applicable recommendations in the GANA Glazing Manual. 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 furnished with items to be glazed, to secure glass in place.

3.1.3 Dissimilar Materials

Where aluminum surfaces are in contact with, or fastened to, masonry, wood, or dissimilar metals, except stainless steel or zinc, the aluminum surface shall be protected from dissimilar materials as recommended in the Appendix to AAMA 101. Do not coat surfaces on which sealants are to adhere.

3.1.4 Anchors and Fastenings

Make provision for securing units to each other and to adjoining construction.

3.1.5 Adjustments After Installation

After installation of windows and completion of glazing and field painting, adjust ventilators and hardware to operate smoothly and to provide weathertight sealing when ventilators are closed and locked. Lubricate hardware and operating parts as recommended by the manufacturer.

3.2 CLEANING

Clean interior and exterior surfaces of window units of mortar, plaster, paint spattering spots, and other foreign matter to present a neat appearance, to prevent fouling of weathering surfaces and weatherstripping, and to prevent interference with the operation of hardware. Remove stained, discolored, or abraded windows that cannot be restored to their original condition, and replace with new windows.

-- End of Section --

SECTION 08565 Page 8

SECTION 08800

GLAZING

10/03

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

ANSI Z97.1 (2004) Safety Glazing Materials Used in Buildings

ASTM INTERNATIONAL (ASTM)

ASTM C 1036 (2006) Standard Specification for Flat Glass

ASTM C 1048 (2004) Heat-Treated Flat Glass - Kind HS, Kind FT Coated and Uncoated Glass

ASTM C 1172 (2003) Laminated Architectural Flat Glass

ASTM C 509 (2006) Elastomeric Cellular Preformed Gasket and Sealing Material

ASTM C 864 (2005) Dense Elastomeric Compression Seal Gaskets, Setting Blocks, and Spacers

ASTM C 920 (2008) Standard Specification for Elastomeric Joint Sealants

ASTM D 395 (2003; R 2008) Standard Test Methods for Rubber Property - Compression Set

ASTM E 1300 (2007e1) Determining Load Resistance of Glass in Buildings

ASTM E 2010 (2001) Positive Pressure Fire Tests of Window Assemblies

ASTM E 773 (2001) Accelerated Weathering of Sealed Insulating Glass Units

ASTM E 774 (1997) Classification of the Durability of Sealed Insulating Glass Units

GLASS ASSOCIATION OF NORTH AMERICA (GANA)

GANA Glazing Manual (2004) Glazing Manual

GANA Sealant Manual (1990) Sealant Manual

SECTION 08800 Page 1

GANA Standards Manual (2001) Tempering Division's Engineering Standards Manual

INSULATING GLASS MANUFACTURERS ALLIANCE (IGMA)

SIGMA A1202 (1983) Commercial Insulating Glass Dimensional Tolerances

SIGMA TM-3000 (1997) Glazing Guidelines for Sealed Insulating Glass Units

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 252 (2007) Standard Methods of Fire Tests of Door Assemblies

NFPA 257 (2006) Fire Test for Window and Glass Block Assemblies

NFPA 80 (2006; Errata 2008) Standard for Fire Doors and Other Opening Protectives

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

16 CFR 1201 Safety Standard for Architectural Glazing Materials

U.S. GREEN BUILDING COUNCIL (USGBC)

LEED Reference Guide (2007) LEED-NC v2.2 Reference Guide for New Construction

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. Submit the following in accordance with Section 01330 GENERAL REQUIREMENTS:

SD-02 Shop Drawings

Installation

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.

SD-03 Product Data

Insulating Glass

Glazing Accessories

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

SD-04 Samples

Insulating Glass

SECTION 08800 Page 2

Two 8 x 10 inch samples of each of the following: tinted glass and insulating glass units.

Sealant

SD-08 Manufacturer's Instructions

Setting and sealing materials

Glass setting

Submit glass manufacturer's recommendations for setting and sealing materials and for installation of each type of glazing material specified.

SD-11 Closeout Submittals

LEED Documentation Notebook

1.3 LEED® DOCUMENTATION

Refer to Section 01332 LEED® DOCUMENTATION. Comply with submittal documentation requirements specified in USGBC LEED Reference Guide.

1. Enter information onto the LEED NC version 2.2 Online Submittal Template(s) provided by the Contracting Officer for the prerequisites or credits indicated in this specification. Include documentation in LEED Documentation Notebook.

2. In the event of a discrepancy between the requirements stated in the LEED Reference Guide and the requirements stated in this specification section, the Submittal Documentation requirements stated in the LEED Reference Guide shall take precedence.

1.3.1 MR CR 4.1 & 4.2

Material and Resources Credit 4.1 and 4.2 Recycled Content - Product Data - Submit the following:

1. Total project materials costs Div 02 to 10 and Section 13120 METAL

BUILDING SYSTEMS OR

2. Total project cost for Div 02 -10 and Section 13120 METAL BUILDING SYSTEMS to apply 45 percent default materials value.

3. Tabulation of each material used that is tracked for recycled content, AND

4. Narrative describing any special circumstances regarding credit approach.

1.3.2 MR CR 5.1 & 5.2

Materials and Resources Credit 5.1 and 5.2 Regional Materials - Product Data - Submit the following:

1. Total project materials costs Div 02 to 10 and Section 13120 METAL

BUILDING SYSTEMS OR

SECTION 08800 Page 3

2. Total project cost for Div 02 -10 and Section 13120 METAL BUILDING SYSTEMS to apply 45 percent default materials value

3. Complete regional material calculation table for each tracked material.

4. Narrative describing any special circumstances regarding credit approach.

1.3.3 EQ CR 4.1

Environmental Quality Credit 4.1 Low Emitting Materials - Adhesives & Sealants - Submit the following:

1. Provide list of each indoor adhesive, sealant, sealant primer and aerosol adhesive used on the project including manufacturer's name, product name, VOC data, etc.

2. Narrative describing special circumstances.

1.4 SYSTEM DESCRIPTION

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

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

Do not start glazing work until the outdoor temperature is above40 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 WARRANTY

1.7.1 Warranty for Insulating Glass Units

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 5-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.

SECTION 08800 Page 4

PART 2 PRODUCTS

2.1 GLASS

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

2.1.1 Clear Glass

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

Type I, Class 1 (clear), Quality q5 (B). 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.

2.1.2 Annealed Glass

Annealed glass shall be Type I transparent flat type, Class 1 - clear, Quality q3 - glazing select, 85 percent light transmittance, 15 percent shading coefficient, conforming to ASTM C 1036.

2.1.3 Wired Glass

Glass for fire-rated windows shall be UL listed and shall be rated for 20 minutes when tested in acccordance with ASTM E 2010. Wired glass shall be Type II flat type, Class 1 - translucent, Quality q8 - glazing, Form 1 -wired and polished both sides, 85 percent light transmittance, 15 percent shading coefficient, conforming to ASTM C 1036. Wire mesh shall be polished stainless steel Mesh 1 - diamond. Wired glass for fire-rated windows shall bear an identifying UL label or the label of a nationally recognized testing agency, and shall be rated for 45 minutes when tested in accordance with NFPA 257. Wired glass for fire-rated doors shall be tested as part of a door assembly in accordance with NFPA 252.

2.1.4 Laminated Glass

Fabricated from two pieces of Type I, Class 1, Quality q3 glass laminated together with a clear 0.030 or 0.060 inch thick polyvinyl butyral interlayer or alternatives such as resin laminates, conforming to requirements of 16 CFR 1201 and ASTM C 1172. Color shall be clear. The total thickness shall be nominally 1/4 inch or nominal 5/16 inch.

2.1.5 Tempered Glass

ASTM C 1048, Kind FT (fully tempered), Condition A (uncoated), Type I, Class 1 (transparent), Quality q3, 1/4 inch thick, 85 percent light transmittance, 15 percent shading coefficient conforming to ASTM C 1048 and GANA Standards Manual. Color shall be clear.

2.2 INSULATING GLASS UNITS

Two panes of glass separated by a dehydrated airspace and hermetically sealed. Dimensional tolerances shall be as specified in SIGMA A1202. The units shall conform to ASTM E 773 and ASTM E 774, Class A. Spacer shall be roll-formed, with bent or tightly welded or keyed and sealed joints to

SECTION 08800 Page 5 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 Insulating Glass Assembly for Glass Type A

A. Exterior Lite: 1/4 inch clear annealed with anti-reflective low-emessivity coating on No. 2 surface.

B. 1/2 inch cavity: 90 percent Argon filled.

C. Interior Lite: 1/4 inch laminate - 1/8 inch clear, 0.030 inch clear PVB, 1/8 inch clear.

D. Glass performance shall be R-Value/Winter Nighttime 0.24, shading coefficicent 0.43.

2.2.2 Insulating Glass Assembly for Glass Type B

A. Exterior Lite: 1/4 inch laminate - 1/8 inch clear, 0.030 inch clear PVB, 1/8 inch clear with anti-reflective low-emissivity coating on No.

2 surface.

B. 1/2 inch cavity: 90 percent Argon filled.

C. Interior Lite: 5/16 inch laminate - 1/8 inch clear, 0.060 inch clear PVB 1/8 inch clear.

D. Glass performance shall be R-Value/Winter Nighttime 0.24, shading coefficicent 0.43.

2.3 SETTING AND SEALING MATERIALS

Provide as specified in the GANA Glazing Manual, SIGMA TM-3000, 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 Sealants

Provide elastomeric sealants.

2.3.1.1 Elastomeric Sealant

ASTM C 920, Type S or M, Grade NS, Class 12.5, Use G. Use for channel or stop glazing metal sash. Sealant shall be chemically compatible with setting blocks, edge blocks, and sealing tapes, with sealants used in manufacture of insulating glass units. Color of sealant shall be gray.

2.3.2 Preformed Channels

Neoprene, vinyl, or rubber, as recommended by the glass manufacturer for the particular condition.

2.3.3 Sealing Tapes

Preformed, semisolid, polymeric-based material of proper size and

SECTION 08800 Page 6 compressibility for the particular condition. 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.

2.3.4 Setting Blocks and Edge Blocks

Neoprene setting blocks shall be dense extruded type conforming to 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.

2.3.5 Glazing Gaskets

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.

2.3.5.1 Fixed Glazing Gaskets

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.

2.3.5.2 Wedge Glazing Gaskets

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.

2.3.6 Accessories

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

Preparation, unless otherwise specified or approved, shall conform to applicable recommendations in the GANA Glazing Manual, GANA Sealant Manual, SIGMA 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.

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3.2 GLASS SETTING

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, SIGMA 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.

3.2.1 Sheet Glass

Cut and set with the visible lines or waves horizontal.

3.2.2 Insulating Glass Units

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

SIGMA TM-3000.

3.2.3 Installation of Wire Glass

Install glass for fire doors in accordance with installation requirements of NFPA 80.

3.2.4 Installation of Laminated Glass

Sashes which are to receive laminated glass shall be weeped to the outside to allow water drainage into the channel.

3.3 CLEANING

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.

3.4 PROTECTION

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. Glass units which are broken, chipped, cracked, abraded, or otherwise damaged during construction activities shall be removed and replaced with new units.

3.5 CONSTRUCTION WASTE MANAGEMENT

Comply with the requirements of Section 01572 CONSTRUCTION AND DEMOLITION WASTE MANAGEMENT, for removal and disposal of construction debris and waste.

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3.2 CLEANING

2.3.6 Accessories