SECTION 08800
GLAZING
PART 1 - GENERAL
1.1SUMMARY
A.Section Includes:
1.Types of work in this Section include glass and glazing for:
a.Float Glass
b.Tempered Glass
c.Insulated Units
d.Polished Wire Glass
e.Fire Rated Safety Glass
f.Mirrors
B.Related Documents:
1.Drawings and General Provisions of Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to work of this Section.
C.Related Sections:
1.Section 07920 - Sealants
2.Section 08110 - Steel Doors and Frames
3.Section 08200 – Wood Doors
4.Section 08410 - Aluminum Entrances and Storefronts
5.Section 08520 - Aluminum Windows
1.2SUBMITTALS
A.Submit “Letter of Conformance” in accordance with Section 01330.
B.Product Data: Submit manufacturer's technical data for each glazing material and fabricated glass product required, including installation and maintenance instructions.
C.Samples: Submit, for verification purposes, 12" square samples of each type of glass indicated except for clear single pane units, and 12" long samples of each color required (except black) for each type of sealant or gasket exposed to view. Install sealant or gasket sample between two strips of material representative of adjoining framing system in color. Sample requirement may be waived by Owner’s Representative at his description.
D.Compatibility and Adhesion Test Report: Submit statement from sealant manufacturer indicating that glass and glazing materials have been tested for compatibility and adhesion with glazing sealants and interpreting test results relative to material performance, including recommendations for primers and substrate preparation needed to obtain adhesion.
1.3QUALITY ASSURANCE
A.Glazing Standards: Comply with recommendations of Flat Glass Marketing Association (FGMA) "Glazing Manual" and "Sealant Manual" except where more stringent requirements are indicated. Refer to those publications for definitions of glass and glazing terms not otherwise defined in this section or other referenced standards.
B.Single Source Responsibility for Glass: To ensure consistent quality of appearance and performance, provide materials produced by a single manufacturer or fabricator for each kind and condition of glass indicated and composed of primary glass obtained from a single source for each type and class required.
1.4DELIVERY, STORAGE, AND HANDLING
A.Protect glass and glazing materials during delivery, storage and handling to comply with manufacturer's directions and as required to prevent edge damage to glass, and damage to glass and glazing materials from effects of moisture including condensation, of temperature changes, of direct exposure to sun, and from other causes.
1.5PROJECT CONDITIONS
A.Environmental Conditions: Do not proceed with glazing when ambient and substrate temperature conditions are outside the limits permitted by glazing material manufacturer or when joint substrates are wet due to rain, frost, condensation or other causes.
1.6WARRANTY
A.General: Warranties shall be in addition to, and not a limitation of, other rights the Owner may have under the Contract Documents.
B.All material shall be free from manufacturer defects and installation workmanship. Any material or workmanship judged to be defective shall be replaced at no cost to the Owner.
C.Insulating glass units shall be jointly guaranteed for a period of ten (10) years by the manufacturer and installer against obstruction of vision between interior glass surfaces caused by failure of the hermetic seal. Units damaged during guarantee period shall be replaced at no cost to the Owner.
PART 2 - PRODUCTS
2.1ACCEPTABLE GLASS MANUFACTURERS
A.All glass shall be new material, graded under Federal Specifications DD-G-451-D-451D
B.All glass in related area shall be from one manufacturer.
2.2GLASS MATERIALS
A.Refer to Drawings for location of glass.
B.Glass I: Clear Float Glass: Type 1 (transparent glass, flat), Class 1 (clear), Quality q3 (glazing select), as manufactured by one of the following:
1.Manufacturers:
a.PPG Industries, Inc. (800-377-5267)
b.LOF/Pilkington (419-247-4721)
c.AFG Industries, Inc. (800-251-0441)
C.Glass II: Tempered Glass: 1/4", Condition A (uncoated surfaces), Type 1 (transparent glass, flat), Class 1 (clear), Quality q3, clear, fully tempered safety glass (meet requirements of ANSI Z97.1).
1.All tempered glass shall conform to ANSI Z97.1, ASTM C1048, and Federal Standard CPSC 16 SFR 1201, Category II. Tempered glass shall bear permanent monogram indicating tempered quality. Fabrication marks on tempered glass shall be located to be concealed in completed installation.
2.Color: Clear to match aluminum windows glazing, Section 08520.
D.Glass III: Coated Low Emissitivity Glass: 1/4", Condition C (other coated glass), Type I (transparent glass, flat), Class I (clear), Quality q3 (glazing select), with coating type and performance characteristics complying with requirements specified below:
1.Low E Coating: Side 3 on insulated units
2.Manufacturers:
a."Sungate 500"; PPG Industries (800-377-5267)
b."Advantage Low-E"; LOF, Libbey-Owens-Ford (419-247-4721)
c."Comfort E"; AFG (800-251-0441)
E.Sealed Insulating Glass Units
1.Provide preassembled units consisting of organically sealed panes of glass enclosing a hermetically sealed dehydrated air space and complying with ASTM E 774 for performance classification indicated as well as with other requirements specified for glass characteristics, air, space, sealing system, sealant, space material, and desiccants.
a.Thickness of Each Pane: 1/4"
b.Air Space Thickness: 1/2"
c.Sealing System: Manufacturer's Standard Dual Seal
d.Desiccant: Manufacturer's Standard - Either Molecular Sieve or Silica Gel or Blend of Both
e.Spacer Material: Manufacturer's Standard Metal, with Bronze Anodized Finish
2.Exterior Pane of Glass: Glass Type II
3.Interior Pane of Glass
a.Glass III
F.Glass IV: Wire Glass: Type II, Class I (translucent), Quality q8 (glazing), complying with ANSI Z97.1, 1/4" thick; Form I (wired, polished both sides), mesh M2 (square).
2.3FIRE-RESISTIVE GLAZING PRODUCTS
A.Manufacturers:
1.Manufacturers:
a.5/16" thick, "Premium FireLite Plus" distributed by Technical Glass Products (800-426-0279).
b.1/4" thick, "Pyroswiss" distributed by Technical Glass Products (800-426-0279).
c.No substitutions permitted.
B.Fire-Resistive, Ceramic Glazing Material: Proprietary product in the form of clear flat sheets psf, permanently labeled with appropriate marks of testing and inspecting agency, acceptable to authorities having jurisdiction, showing product complies with fire-resistive installation indicated, and as follows:
1.Safety Glass: Shall conform to ANSI Z97.1, ASTM C 1048, and Federal Standard CPSC 16 SFR 1201.
2.Polished on both surfaces, transparent with minimum visible light transmission of 85 percent.
2.4MIRRORS
A.Location: Unframed mirrors at public bathrooms.
B.Manufacturers:
1.Binswanger Mirror Co. (800-221-8408)
2.Falconer Glass Industries, (800-828-2210)
3.Gardner Mirror Corporation, (800-334-7267)
C.Mirror glazing "select" quality float glass complying with ASTM C1036 and CPSC 16 CFR 1201, 1/4" thick.
D.Silvering: Provide electro-deposited silvering in two coats.
E.Exposed edges ground smooth and polished.
F.Mirror sizes indicated on the drawings. Extend mirror to within 1" of adjacent walls, on each end, in one piece.
G.Mirror Adhesive System:
1.Manufacturers:
a.Edge Seal: "UC-4401" - PPG Industries, Inc., Glass Div., (800-377-5267), or as recommended by mirror manufacturer.
b.Adhesive: “Mirror-Mastic”; Palmer Products Corp. (800-431-6151)
c.No substitutions permitted.
H.Exposed Mirror Clips
1.Manufacturers:
a.Top Clip: 9/16” wide x 1-1/4” long; Model No. 318; Knape & Vogt.
b.Bottom Clip: Continuous “j” track at base.
c.Approved substitution.
2.5ELASTOMERIC GLAZING SEALANTS AND PREFORMED GLAZING TAPES
A.General: Provide products of type indicated and complying with the following requirements:
1.Compatibility: Select glazing sealants and tapes of proven compatibility with other materials with which they will come into contact, including glass products, seals of insulating glass units, and glazing channel substrates, under conditions of installation and service, as demonstrated by testing and field experience.
2.Suitability: Comply with recommendations of sealant and glass manufacturers for selection of glazing sealants and tapes which have performance characteristics suitable for applications indicated and conditions at time of installation.
3.Elastomeric Sealant Standard: Provide manufacturer's standard chemically curing, elastomeric sealant of base polymer indicated which complies with ASTM C 920 requirements, including those for Type, Grade, Class and Uses.
4.Colors: Provide color of exposed sealants indicated or, if not otherwise indicated, as selected by Owner’s Representative from manufacturer's standard colors.
B.Preformed Butyl-Polyisobutylene Glazing Tape: Provide manufacturer's standard solvent-free butyl-polyisobutylene formulation with a solids content of 100 percent; complying with AAMA A 804.1; in extruded tape form; non-staining and non-migrating in contact with nonporous surfaces; packaged on rolls with a release paper on one side; with or without continuous spacer rod as recommended by manufacturers of tape and glass for application indicated.
C.Sealants: Provide structural and weatherseal sealants recommended by the manufacturer of the structural sealant glazed curtain wall system.
1.As manufactured by the following:
a.General Electric
b.Tremco
2.Refer to Section 07920 for requirements.
3.Structural silicone sealant shall be specifically designed and tested for use as structural sealant.
D.Spacers, Setting Blocks, Gaskets, and Bond Breakers: Provide the curtain wall manufacturer's permanent nonmigrating types compatible with sealants and suitable for joint movement and sealing requirements.
2.6MISCELLANEOUS GLAZING MATERIALS
A.Compatibility: Provide materials with proven record of compatibility with surfaces contacted in installation.
B.Cleaners, Primers and Sealers: Type recommended by sealant or gasket manufacturer.
C.Setting Blocks: Neoprene, EPDM or silicone blocks as required for compatibility with glazing sealants, 80 to 90 Shore A durometer hardness.
D.Spacers: Neoprene, EPDM or silicone blocks, or continuous extrusions, as required for compatibility with glazing sealant, of size, shape and hardness recommended by glass and sealant manufacturers for application indicated.
E.Edge Blocks: Neoprene, EPDM or silicone blocks as required for compatibility with glazing sealant, of size and hardness required to limit lateral movement (side-walking) of glass.
F.Compressible Filler Rods: Closed-cell or waterproof-jacketed rod stock of synthetic rubber or plastic foam, flexible and resilient, with 5-10 psi compression strength for 25 percent deflection.
PART 3 - EXECUTION
3.1EXAMINATION: Require Glazier to inspect work of glass framing erector for compliance with manufacturing and installation tolerances, including those for size, squareness, offsets at corners; for presence and functioning of weep system; for existence of minimum required face or edge clearances; and for effective sealing of joinery. Obtain Glazier's written report listing conditions detrimental to performance of glazing work. Do not allow glazing work to proceed until unsatisfactory conditions have been corrected.
3.2PREPARATION: Clean glazing channels and other framing members to receive glass, immediately before glazing. Remove coatings which are not firmly bonded to substrates. Remove lacquer from metal surfaces where elastomeric sealants are indicated for use.
3.3GLAZING, GENERAL
A.Comply with combined printed recommendations of glass manufacturers, of manufacturers of sealants, gaskets and other glazing materials, except where more stringent requirements are indicated, including those of referenced glazing standards.
B.Protect glass from edge damage during handling and installation; use a rolling block in rotating glass units to prevent damage to glass corners. Do not impact glass with metal framing. Use suction cups to shift glass units within openings; do not raise or drift glass with a pry bar. Rotate glass with flares or bevels along one horizontal edge which would occur in vicinity of setting blocks so that these are located at top of opening. Remove from project and dispose of glass units with edge damage or other imperfections of kind that, when installed, weakens glass and impairs performance and appearance.
C.Apply primers to joint surfaces where required for adhesion of sealants, as determined by preconstruction sealant-substrate testing.
D.Anchor components securely in place in the manner indicated. Shim and allow for movement resulting from changes in thermal conditions. Provide separators and isolators to prevent corrosion, electrolytic deterioration, and "freeze-up" of moving joints.
E.Glazing: Inspect glass and framing for compliance with manufacturing and installation tolerances, including size, squareness, and offsets at corners; for existence of minimum face or edge clearances; and for effective sealing of joinery.
1.Avoid point loading of glass. Do not proceed with glazing work until unsatisfactory conditions have been corrected. Do not field-cut glass.
2.Field-Glazed Structural Silicone Glazing Work: Clean frames and glass surfaces with an approved solvent. Prime surfaces and apply structural sealant in accordance with manufacturer's recommendations. Clean excess structural sealant before curing. Mechanically hold glass firmly in place until sealant is sufficiently cured. Install compressible backer rods in joint before applying weatherseal sealant.
F.Erection Tolerances: Install curtain wall components plumb, level, accurately aligned, and located in reference to column lines and floor levels. Erection tolerances indicated below are the maximum allowable for both no-load and full-load conditions and are not cumulative. Adjust work to conform to the following tolerances:
1.Plumb: 1/8 inch in 10 feet; 1/4 inch in 40 feet.
2.Level: 1/8 inch in 20 feet; 1/4 inch in 40 feet.
3.Alignment: Limit offset of member alignment to 1/16 inch where surfaces are flush or less than 1/2 inch out of flush and separated by less than 3 inches by protruding work; otherwise limit offsets to 1/8 inch.
4.Location: 3/8 inch maximum deviation from the measured theoretical location of any member at any location.
3.4GLAZING
A.Install setting blocks of proper size in sill rabbet, located one quarter of glass width from each corner, but with edge nearest corner not closer than 6" from corner, unless otherwise required. Set blocks in thin course of sealant which is acceptable for heel bead use.
B.Provide spacers inside and out, of correct size and spacing to preserve required face clearances, for glass sizes larger than 50 united inches (length plus height), except where gaskets or glazing tapes with continuous spacer rods are used for glazing. Provide 1/8" minimum bite of spacers on glass and use thickness equal to sealant width, except with sealant tape use thickness slightly less than final compressed thickness of tape.
C.Provide edge blocking to comply with requirements of referenced glazing standard, except where otherwise required by glass unit manufacturer. Set units of glass in each series with uniformity of pattern, draw, bow and similar characteristics.
D.Provide compressible filler rods or equivalent back-up material, as recommended by sealant and glass manufacturers, to prevent sealant from extruding into glass channel weep systems and from adhering to joints back surface as well as to control depth of sealant for optimum performance, unless otherwise indicated. Force sealants into glazing channels to eliminate voids and to ensure complete "wetting" or bond of sealant to glass and channel surfaces.
3.5MIRROR INSTALLATION
A.Do not install mirrors on new plaster, freshly painted walls, or where airborne solvents, heavy-duty cleaners, etc., are in the air. Sub-surfaces shall be allowed to cure for a minimum of 72 hours.
B.Use exposed clips at top and continuous bottom clip at base of mirror.
C.Seal bottom edges of mirror track with clear sanitary sealant. Refer to Section 07920. Allow to dry.
D.Apply adhesive to 60% of back of mirror.
E.Set mirror supported by setting blocks and press against substrate to ensure bond of adhesive.
F.Hold mirror in place until adhesive fully sets.
3.6PROTECTION AND CLEANING
A.Protect exterior glass from breakage immediately upon installation by use of crossed streamers attached to framing and held away from glass. Do not apply markers to surfaces of glass. Remove nonpermanent labels and clean surfaces.
B.Protect glass from contact with contaminating substances resulting from construction operations. If, despite such protection, contaminating substances do come into contact with glass, remove immediately by method recommended by glass manufacturer.
C.Examine glass surfaces adjacent to or below exterior concrete and other masonry surfaces at frequent intervals during construction, but not less often than once a month, for build-up of dirt, scum, alkali deposits or staining. When examination reveals presence of these forms of residue, remove by method recommended by glass manufacturer.
D.Remove and replace glass which is broken, chipped, cracked, abraded or damaged in other ways during construction period, including natural causes, accidents and vandalism.
E.Wash glass on both faces not more than 4 days prior to date scheduled for inspections intended to establish date of substantial completion.
END OF SECTION
08800 - 1LK 00000