Addendum_1_-_08800_BSD-Glazing.pdf

PSXE 102033

GLAZING 08800 - 1

SECTION 08800

GLAZING

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Glass.

B. Glazing compounds and accessories.

1.2 RELATED REQUIREMENTS

A. Section 07260 - Weather Barriers.

B. Section 07900 - Joint Sealers: Sealant and back-up material.

C. Section 08110 - Steel Doors and Frames: Glazed doors and borrowed lites.

D. Section 08120 - Aluminum Doors and Frames: Glazed doors.

E. Section 08520 - Aluminum Windows: Glazing furnished by window manufacturer.

1.3 REFERENCE STANDARDS

A. 16 CFR 1201 - Safety Standard for Architectural Glazing Materials; current edition.

B. ASTM C920 - Standard Specification for Elastomeric Joint Sealants; 2014.

C. ASTM C1036 - Standard Specification for Flat Glass; 2011e1.

D. ASTM C1193 - Standard Guide for Use of Joint Sealants; 2013.

E. ASTM E84 - Standard Test Method for Surface Burning Characteristics of Building Materials;

2014.

F. GANA (SM) - GANA Sealant Manual; Glass Association of North America; 2008.

G. ICC (IBC) - International Building Code; 2012.

1.4 PERFORMANCE REQUIREMENTS FOR ANTI-TERRORISM AND FORCE PROTECTION

A. Department of Defense Minimum Antiterrorism Standards for Building (UFC 4-010-01, current edition) window frame requirements including frames, anchorage, and glazing pockets.

Contractor shall demonstrate by calculations or tests that the window provided comply with the follow requirements:

1. Glazing: Use a minimum of two 6 mm (1/4 inch) nominal laminated glass for all exterior windows, skylights and glazed doors. The 6 mm (1/4 inch) laminated glass consists of two nominal 3-mm (1/8 inch) glass panes bonded together with a minimum of a 0.75 mm (0.030 inch) polyvinyl-butyral (PVB) interlayer. For insulating glass units, use 6 mm (1/4 inch) laminated glass for the inboard pane as a minimum. For glazing alternatives to the 6 mm (1/4 inch) laminated glass that provide equivalent levels of protection, refer to the DoD Security Engineering Facilities Design Manual.

a. Design Blast Pressure: 44 lbs per square foot

2. Frame Member design: Comply with ASTM F2248. Steel member may be designed using ultimate yield stress and aluminum members may be designed based on a 0.2% offset yield strength. Equivalent stress design loads for the window, skylight and door members shall be 7 kilopascals (1 lb per square inch) applied to the surface of the glazing and frame. Deformations shall not exceed 1/60 of the unsupported member lengths.

a. Framing Design Pressure: 8 x 44 lbs per square foot.

3. Glazing Frame Bite: Comply with ASTM F2248. The glazing shall have a minimum frame bite of 9.5 mm (3/8 inch) for structurally glazed systems and 25 mm (1 inch) for window systems that are not structurally glazed.

4. Connection design: Comply with ASTM F2248. Equivalent Static design loads for connections to the window, skylight, or door frame the surrounding walls or roof, hardware and associated connections, and glazing stop connections shall be 75 kilopascals, (10.8 lbs per square inch) for glazing panels with a vision area less than or equal to 1.0 square meters (10.8 square feet) and 30 kilopascals (4.4 lbs per square inch) for glazing panels

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with a vision area greater than 1.0 square meters (10.8 square feet) but less than or equal to 3.0 square meters (32 square feet). Loads shall be applied to the surface of the glazing and frame. Connections and hardware may be designed based on ultimate strength for steel and 0.2% offset yield strength for aluminum.

1.5 SUBMITTALS

A. See Section 01300 - Submittals, for submittal procedures.

B. Product Data on Glass Types: Provide structural, physical and environmental characteristics, size limitations, special handling or installation requirements.

C. Product Data on Glazing Compounds: Provide chemical, functional, and environmental characteristics, limitations, special application requirements. Identify available colors.

D. Samples: Submit two samples 4x4 inch in size of glass units, showing coloration and design.

E. Certificates: Certify that products meet or exceed specified requirements.

F. Buy American Act Certification: Submit documentation certifying that products comply with provisions of the Buy American Act BAA - 41 U.S.C. §§ 10a-10d

G. LEED Submittal:

1. Submit 01360 LEED New Product Form.

2. See 01356 for form submittal procedures.

1.6 QUALITY ASSURANCE

A. Perform Work in accordance with GANA Sealant Manual for glazing installation methods.

B. Installer Qualifications: Company specializing in performing the work of this section with minimum three years documented experience.

1.7 MOCK-UP

A. Provide mock-up of window installation including glass and air barrier and vapor retarder seal.

B. Locate where directed.

C. Mockup may remain as part of the Work if approved.

1.8 FIELD CONDITIONS

A. Do not install glazing when ambient temperature is less than 50 degrees F.

B. Maintain minimum ambient temperature before, during and 24 hours after installation of glazing compounds.

1.9 WARRANTY

A. See Section 01780 - Closeout Submittals, for additional warranty requirements.

B. Manufacturer's Special Project Warranty on Insulating Glass: Submit written warranty signed by manufacturer of insulating glass agreeing to furnish replacements for insulating glass units that deteriorate as defined in "Definitions" article, f.o.b. point of manufacture, freight allowed Project site, within specified warranty period indicated below. Warranty covers only deterioration due to normal conditions of use and not to handling, installing, protecting, and maintaining practices contrary to glass manufacturer's published instructions.

1. Warranty Period: Manufacturer's standard but not less than 10 years after date of

Substantial Completion.

C. Manufacturer’s Special Warranty on Coated-Glass Products: Written warranty, made out and signed by coated-glass manufacturer agreeing to furnish replacements for those coated-glass units that deteriorate as defined in “Definitions” Article, f.o.b. the nearest shipping point to Project site, within specified warranty period indicated below.

1. Warranty Period: 10 years from date of Substantial Completion.

PART 2 PRODUCTS

2.1 INSULATING GLASS UNITS

A. Sealed Insulating Glass Units: Vision glazing, low-E.

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1. Application(s): All exterior glazing unless otherwise indicated.

2. Substitutions: See Section 01600 – Materials, Equipment, and Substitutions.

a. Other products of the basis of design manufacturer and products of other manufacturers will be considered provided the overall performance is within the specified range(s) and the overall appearance is not significantly different from that of the specified product.

b. Contracting Officer's decision on substitutions is final.

3. Between-lite space filled with argon.

4. Thermal Resistance (U-Value): Winter Nighttime 0.29 Summer Daytime 0.27, exactly.

5. Total Solar Heat Gain Coefficient: 0.38 , exactly.

6. Total Visible Light Transmittance: 70 percent , exactly.

7. Basis of Design: PPG Industries, Inc: www.ppgideascapes.com.

8. Outboard Lite: Annealed float glass, 1/4 inch total thickness . Refer to PERFORMANCE

REQUIREMENTS FOR ANTI-TERRORISM AND FORCE PROTECTION

a. Coating: PPG Solarban 60 on # 2 surface, no coating on #3 surface.

b. Tint: None (clear).

9. Inboard Lite: Laminated float glass, 1/4 inch total thickness. Refer to PERFORMANCE

REQUIREMENTS FOR ANTI-TERRORISM AND FORCE PROTECTION

a. Tint: None (clear).

10. Total Thickness: 1 inch.

2.2 GLAZING COMPOUNDS

A. Manufacturers:

1. Pecora Corporation: www.pecora.com.

2. Substitutions: See Section 01600 - Materials, Equipment, Substitutions.

B. Butyl Sealant: Single component; ASTM C 920, Grade NS, Class 12-1/2, Uses M and A; Shore A hardness of 10 to 20; black color; non-skinning. Comply with VOC requirements per division 1 where applied inside the envelope of the building.

C. Silicone Sealant: Single component; neutral curing; capable of water immersion without loss of properties; non-bleeding, non-staining; ASTM C 920, Type S, Grade NS, Class 25, Uses M, A, and G; cured Shore A hardness of 15 to 25; color as selected by Contracting Officer.

2.3 GLAZING ACCESSORIES

A. Setting Blocks: Neoprene, 80 to 90 Shore A durometer hardness; ASTM C864 Option II. Length of 0.1 inch for each square foot of glazing or minimum 4 inch x width of glazing rabbet space minus 1/16 inch x height to suit glazing method and pane weight and area.

B. Spacer Shims: Neoprene, 50 to 60 Shore A durometer hardness; ASTM C864 Option II.

Minimum 3 inch long x one half the height of the glazing stop x thickness to suit application, self adhesive on one face.

C. Glazing Tape, Back Bedding Mastic Type: Preformed, butyl-based, 100 percent solids compound with integral resilient spacer rod applicable to application indicated; hardness range of 5 to 30 cured Shore A durometer; coiled on release paper; black color.

D. Glazing Gaskets: Resilient silicone extruded shape to suit glazing channel retaining slot; ASTM C864 Option II; ________ color.

E. Glazing Clips: Manufacturer's standard type.

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify that openings for glazing are correctly sized and within tolerance.

B. Verify that surfaces of glazing channels or recesses are clean, free of obstructions that may impede moisture movement, weeps are clear, and ready to receive glazing.

3.2 PREPARATION

A. Clean contact surfaces with solvent and wipe dry.

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B. Seal porous glazing channels or recesses with substrate compatible primer or sealer.

C. Prime surfaces scheduled to receive sealant.

D. Install sealants in accordance with ASTM C1193 and GANA Sealant Manual.

E. Install sealants in accordance with manufacturer's instructions.

3.3 INSTALLATION - EXTERIOR/INTERIOR DRY METHOD (GASKET GLAZING)

A. Place setting blocks at 1/4 points with edge block no more than 6 inch from corners.

B. Rest glazing on setting blocks and push against fixed stop with sufficient pressure on gasket to attain full contact.

C. Install removable stops without displacing glazing gasket; exert pressure for full continuous contact.

3.4 INSTALLATION - EXTERIOR DRY METHOD (TAPE AND GASKET SPLINE GLAZING)

A. Cut glazing tape to length; install on glazing pane. Seal corners by butting tape and sealing junctions with butyl sealant.

B. Place setting blocks at 1/4 points with edge block no more than 6 inch from corners.

C. Rest glazing on setting blocks and push against fixed stop with sufficient pressure to attain full contact.

D. Install removable stops without displacing glazing spline. Exert pressure for full continuous contact.

E. Trim protruding tape edge.

3.5 INSTALLATION - INTERIOR DRY METHOD (TAPE AND TAPE)

A. Comply with Manufacturer's recommendations for installation. Report discrepancies to the Contracting Officer prior to proceeding.

B. Cut glazing tape to length and set against permanent stops, projecting 1/16 inch above sight line.

C. Place setting blocks at 1/4 points with edge block no more than 6 inch from corners.

D. Rest glazing on setting blocks and push against tape for full contact at perimeter of pane or unit.

E. Place glazing tape on free perimeter of glazing in same manner described above.

F. Install removable stop without displacement of tape. Exert pressure on tape for full continuous contact.

G. Knife trim protruding tape.

3.6 FIELD QUALITY CONTROL

A. Glass and Glazing product manufacturers to provide field surveillance of the installation of their products.

B. Monitor and report installation procedures and unacceptable conditions.

3.7 CLEANING

A. Remove glazing materials from finish surfaces.

B. Remove labels after Work is complete.

C. Clean glass and adjacent surfaces.

3.8 PROTECTION

A. After installation, mark pane with an 'X' by using removable plastic tape or paste; do not mark heat absorbing or reflective glass units.

B. Protect exterior glass from breakage 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.

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C. Protect glass from contact with contaminating substances resulting from construction operations including weld splatter. If, despite such protection, contaminating substances do come into contact with glass, remove them immediately as recommended by glass manufacturer.

D. 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 build-up of dirt, scum, alkali deposits, or stains, and remove as recommended by glass manufacturer.

E. Remove and replace glass that is broken, chipped, cracked, abraded, or damaged in any way, including natural causes, accidents and vandalism, during construction period.

F. Wash glass on both faces in each area of Project not more than 4 days prior to date scheduled for inspections that establish date of Substantial Completion. Wash glass as recommended by glass manufacturer.

END OF SECTION