08 80 00 Glazing.doc

610-20-517 Remodel Building 97

10-15

SECTION 08 80 00

GLAZING

PART 1 ‑ GENERAL

1.1 DESCRIPTION

This section specifies glass, related glazing materials and accessories. Glazing products specified apply to factory or field glazed items.

1.2 LABELS

A.

Temporary labels:

1.

Provide temporary label on each light of glass identifying manufacturer or brand and glass type, quality, and nominal thickness.

2.

Label in accordance with NFRC (National Fenestration Rating Council) label requirements.

3.

Temporary labels shall remain intact until glass is approved by Project Engineer.

B.

Permanent labels:

1.

Locate in corner for each pane.

2.

Label in accordance with ANSI Z97.1 and SGCC (Safety Glass Certification Council) label requirements.

1.3 PERFORMANCE REQUIREMENTS

A.

Building Enclosure Vapor Retarder and Air Barrier:

1.

Utilize the inner pane of multiple pane sealed units for the continuity of the air barrier and vapor retarder seal.

2.

Maintain a continuous air barrier and vapor retarder throughout the glazed assembly from glass pane to heel bead of glazing sealant.

B.

Glass Thickness:

1.

Select thickness of exterior glass to withstand dead loads and wind loads acting normal to plane of glass at design pressures calculated in accordance with ASCE 7.

2.

Limit glass deflection to 1/200 or flexure limit of glass, whichever is less, with full recovery of glazing materials.

3.

Test in accordance with ASTM E 330.

4.

Thicknesses listed are minimum. Coordinate thicknesses with framing system manufacturers.

1.4 SUBMITTALS

A.

In accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, and SAMPLES.

B.

Manufacturer's Certificates:

1.

Certificate on shading coefficient.

2.

Certificate on "R" value when value is specified.

C.

Warranty: Submit written guaranty, conforming to General Condition requirements, and to “Warranty of Construction” Article in this Section.

D.

Manufacturer's Literature and Data:

1.

Glass, each kind required.

2.

Insulating glass units.

3.

Elastic compound for metal sash glazing.

4.

Glazing cushion.

5.

Sealing compound.

E.

Samples:

Size: 150 mm by 150 mm (6 inches by 6 inches).

F.

Preconstruction Adhesion and Compatibility Test Report: Submit glazing sealant manufacturer’s test report indicating glazing sealants were tested for adhesion to glass and glazing channel substrates and for compatibility with glass and other glazing materials.

1.5 DELIVERY, STORAGE AND HANDLING

A.

Delivery: Schedule delivery to coincide with glazing schedules so minimum handling of crates is required. Do not open crates except as required for inspection for shipping damage.

B.

Storage: Store cases according to printed instructions on case, in areas least subject to traffic or falling objects. Keep storage area clean and dry.

C.

Handling: Unpack cases following printed instructions on case. Stack individual windows on edge leaned slightly against upright supports with separators between each.

1.6 PROJECT CONDITIONS

Field Measurements: Field measure openings before ordering tempered glass products. Be responsible for proper fit of field measured products.

1.7 warranty

Warranty: Conform to terms of "Warranty of Construction" Article in Section 00 72 00, GENERAL CONDITIONS, except extend warranty period for the following: Insulating glass units to remain sealed for 10 years.

1.8 APPLICABLE PUBLICATIONS

A.

Publications listed below form a part of this specification to extent referenced. Publications are referenced in text by basic designation only.

B.

American National Standards Institute (ANSI):

Z97.1‑04 Safety Glazing Material Used in Building ‑ Safety Performance Specifications and Methods of Test.

C.

American Society for Testing and Materials (ASTM):

C1363-05 Thermal Performance of Building Assemblies, by Means of A Hot Box Apparatus

C542‑05 Lock‑Strip Gaskets.

C716‑06 Installing Lock-Strip Gaskets and Infill Glazing Materials.

C864‑05 Dense Elastomeric Compression Seal Gaskets, Setting Blocks, and Spacers.

C920‑05 Elastomeric Joint Sealants.

C1036‑06 Flat Glass.

C1048‑04 Heat‑Treated Flat Glass‑Kind HS, Kind FT Coated and Uncoated Glass.

E84‑01 Surface Burning Characteristics of Building Materials.

E330-02 Structural Performance of Exterior Windows, Curtain Walls, and Doors by Uniform Static Air Pressure Difference.

E774‑97 Sealed Insulating Glass Units

D.

Code of Federal Regulations (CFR):

16 CFR 1201 ‑ Safety Standard for Architectural Glazing Materials; 1977, with 1984 Revision.

E.

National Fenestration Rating Council (NFRC):

Certified Products Directory (Latest Edition).

F.

Safety Glazing Certification Council (SGCC):

Certified Products Directory (Issued Semi‑Annually).

PART 2 – PRODUCT

2.1 HEAT-TREATED GLASS

Clear Tempered Glass.

1.

ASTM C1048, Kind FT, Condition A, Type I, Class 1, Quality q3.

2.

Thickness, 6 mm (1/4 inch) as indicated.

2.2 INSULATING GLASS UNITS

A.

Provide factory fabricated, hermetically sealed glass unit consisting of two panes of glass separated by a dehydrated air space.

B.

Assemble units using glass types specified.

C.

Sealed Edge Units (SEU):

1.

Conform to ASTM E774, Class C performance requirements.

2.

Air Space not less than 13 mm (½ inch) wide.

3.

R value not less than 1.65.

D.

SEU Clear Tempered Glass:

1.

Exterior pane ASTM C1048, Kind FT, Condition A, Type I, Class 1, Quality q3, low-E coating on second surface 6 mm (1/4 inch) thick.

2.

Interior pane ASTM C1048, Kind FT, Condition A, Type I, Class 1, Quality q3 (1/4 inch) thick.

2.3 GLAZING ACCESSORIES

A.

As required to supplement the accessories provided with the items to be glazed and to provide a complete installation. Ferrous metal accessories exposed in the finished work shall have a finish that will not corrode or stain while in service.

B.

Setting Blocks: ASTM C864:

1.

Channel shape; having 6 mm (1/4 inch) internal depth.

2.

Shore a hardness of 80 to 90 Durometer.

3.

Block lengths: 50 mm (two inches) except 100 to 150 mm (four to six inches) for insulating glass.

4.

Block width: Approximately 1.6 mm (1/16 inch) less than the full width of the rabbet.

5.

Block thickness: Minimum 4.8 mm (3/16 inch). Thickness sized for rabbet depth as required.

C.

Spacers: ASTM C864:

1.

Channel shape having a 6 mm (1/4 inch) internal depth.

2.

Flanges not less 2.4 mm (3/32 inch) thick and web 3 mm (1/8 inch) thick.

3.

Lengths: One to 25 to 76 mm (one to three inches).

4.

Shore a hardness of 40 to 50 Durometer.

D.

Sealing Tapes:

1.

Semi‑solid polymeric based material exhibiting pressure‑sensitive adhesion and withstanding exposure to sunlight, moisture, heat, cold, and aging.

2.

Shape, size and degree of softness and strength suitable for use in glazing application to prevent water infiltration.

E.

Spring Steel Spacer: Galvanized steel wire or strip designed to position glazing in channel or rabbeted sash with stops.

F.

Glazing Gaskets: ASTM C864:

1.

Firm dense wedge shape for locking in sash.

2.

Soft, closed cell with locking key for sash key.

3.

Flanges may terminate above the glazing‑beads or terminate flush with top of beads.

G.

Lock‑Strip Glazing Gaskets: ASTM C542, shape, size, and mounting as indicated.

H.

Glazing Sealants: ASTM C920, silicone neutral cure:

1.

Type S.

2.

Class 25

3.

Grade NS.

4.

Shore A hardness of 25 to 30 Durometer.

I.

Color: Color of glazing compounds, gaskets, and sealants shall match existing.

PART 3 ‑ EXECUTION

3.1 EXAMINATION

A.

Verification of Conditions:

1.

Examine openings for glass and glazing units; determine they are proper size; plumb; square; and level before installation is started.

2.

Verify that glazing openings conform to details, dimensions, and tolerances indicated on manufacturer’s approved shop drawings.

B.

Advise Contractor of conditions which may adversely affect glass and glazing unit installation, prior to commencement of installation. Do not proceed with installation until unsatisfactory conditions have been corrected.

3.2 PREPARATION

A.

For sealant glazing, prepare glazing surfaces in accordance with GANA-02 Sealant Manual.

B.

Determine glazing unit size and edge clearances by measuring the actual unit to receive the glazing.

C.

Shop-fabricate and cut glass with smooth, straight edges of full size required by openings to provide GANA recommended edge clearances.

D.

Verify that components used are compatible.

E.

Clean and dry glazing surfaces.

F.

Prime surfaces scheduled to receive sealants, as determined by preconstruction sealant-substrate testing.

3.3 INSTALLATION - GENERAL

A.

Install in accordance with GANA-01 Glazing Manual and GANA-02 Sealant Manual unless specified otherwise.

B.

Glaze in accordance with recommendations of glazing and framing manufacturers, and as required meeting the Performance Test Requirements specified in other applicable sections of specifications.

C.

Set glazing without bending, twisting, or forcing of units.

D.

Do not allow glass to rest on or contact any framing member.

E.

Glaze operable sash in a securely fixed or closed and locked position until sealant has thoroughly set.

F.

Insulating Glass Units:

1.

Glaze in compliance with glass manufacturer's written instructions.

2.

When glazing gaskets are used, they shall be of sufficient size and depth to cover glass seal or metal channel frame completely.

3.

Do not use putty or glazing compounds.

4.

Do not grind, nip, cut, or otherwise alter edges and corners of fused glass units after shipping from factory.

3.4 REPLACEMENT AND CLEANING

A.

Clean new glass surfaces removing temporary labels, paint spots, and defacement after approval by Resident Engineer.

B.

Replace cracked, broken, and imperfect glass, or glass which has been installed improperly.

C.

Leave glass and frame in clean, whole, and acceptable condition.

3.5 PROTECTION

Protect finished surfaces from damage during erection and after completion of work. - - - E N D - - -

08 80 00-1