SECTION 05 7300 DECORATIVE METAL RAILINGS PART 1 GENERAL 1.01 SECTION INCLUDES A.
Railing and guardrail assemblies.
1.02 REFERENCE STANDARDS A.
16 CFR 1201 - Safety Standard for Architectural Glazing Materials ; current edition.
B.
AAMA 611 - Voluntary Specification for Anodized Architectural Aluminum; American Architectural Manufacturers Association ; 1998.
C.
ANSI Z97.1 - American National Standard for Safety Glazing Materials Used in Buildings, Safety Performance Specifications and Methods of Test ; 2009.
D.
ASTM A666 - Standard Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar ; 2010.
E.
ASTM B221 - Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes ; 2008.
F.
ASTM C920 - Standard Specification for Elastomeric Joint Sealants ; 2011.
G.
ASTM C1172 - Standard Specification for Laminated Architectural Flat Glass ; 2009e1.
H.
ASTM C1193 - Standard Guide for Use of Joint Sealants ; 2009.
I.
ASTM E935 - Standard Test Methods for Performance of Permanent Metal Railing Systems and Rails for Buildings ; 2000 (Reapproved 2006).
J.
ASTM E985 - Standard Specification for Permanent Metal Railing Systems and Rails for Buildings ; 2000 (Reapproved 2006).
K.
AWS D1.1/D1.1M - Structural Welding Code - Steel ; 2010.
L.
AWS D1.6 - Structural Welding Code - Stainless Steel ; 1999.
1.03 ADMINISTRATIVE REQUIREMENTS A.
Pre-Installation Meeting: Schedule and conduct a preinstallation meeting one week before starting work of this section. Attendees shall include, but not be limited to: 1. Contractor. 2. Manufacturer's representative. 3. Architect. 4. Owner's representative. 5. Other subcontractors of adjacent work.
1.04 SUBMITTALS A.
See Section 01 3000 - Administrative Requirements, for submittal procedures.
B.
Product Data: Submit manufacturer's product data including description of materials, components, finishes, fabrication details, glass, anchors, and accessories.
C.
Shop Drawings: Indicate railing system elevations and sections, details of profile, dimensions, sizes, connection attachments, anchorage, size and type of fasteners, and accessories. Indicate anchor and joint locations, brazed connections, transitions, and terminations.
D.
Test Reports: Submit test reports from an independent testing agency showing compliance with specified design and performance requirements.
E.
Manufacturer's Installation Instructions.
F.
Maintenance Data: Manufacturer's instructions for care and cleaning.
G.
Warranty: Submit manufacturer warranty and ensure that forms have been completed in Owner's name and registered with manufacturer.
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1.06 QUALITY ASSURANCE A.
Installer Qualifications: Company specializing in installing glazed railing systems and acceptable to manufacturer.
B.
Installer Qualifications: Manufacturer of railing.
C.
Mock-ups: Construct a railing of each type specified. Locate mock-ups where directed. Mockups may remain as part of the work.
1.07 DELIVERY, STORAGE, AND HANDLING A.
Deliver railing materials in factory provided protective coverings and packaging.
B.
Protect railing materials against damage during transit, delivery, storage, and installation at site.
C.
Inspect railing materials upon delivery for damage. Repair damage to be indistinguishable from undamaged areas; if damage cannot be repaired to be indistinguishable from undamaged parts and finishes, replace damaged items.
D.
Prior to installation, store materials and components under cover, in a dry location.
1.08 FIELD CONDITIONS A.
Do not install railings until project is enclosed and ambient temperature of space is minimum 65 degrees F (18.3 degrees C) and maximum 95 degrees F (35 degrees C).
B.
Maintain ambient temperature of space at minimum 65 degrees F (18.3 degrees C) and maximum 95 degrees F (35 degrees C) for 24 hours before, during, and after railing installation.
1.09 WARRANTY A.
Warranty: Manufacturer's standard one year warranty against defects in materials, fabrication, finishes, and installation commencing on Date of Substantial Completion.
PART 2 PRODUCTS 2.01 MANUFACTURERS A.
Decorative Metal Railings: 1. Julius Blum & Co, Inc.
B.
Railing Components: 1. Manufacturer/Fabricator specified for railings.
2.02 RAILING SYSTEMS A.
Railings - General: Factory- or shop-fabricated in design indicated, to suit specific project conditions, and for proper connection to building structure, and in largest practical sizes for delivery to site. 1. Design Criteria: Design and fabricate railings and anchorages to resist the following loads without failure, damage, or permanent set; loads do not need to be applied simultaneously. a. Lateral Force: 75 lb (333 N) minimum, at any point, when tested in accordance with ASTM E935. b. Distributed Load: 50 pounds per foot (0.73 kN per m) minimum, applied in any direction at the top of the handrail, when tested in accordance with ASTM E935. c. Concentrated Loads on Intermediate Rails: 50 pounds per square ft (0.22 per sq m), minimum. d. Concentrated Load: 200 pounds (888 N) minimum, applied in any direction at any point along the handrail system, when tested in accordance with ASTM E935. 2. Assembly: Join lengths, seal open ends, and conceal exposed mounting bolts and nuts using slip-on non-weld mechanical fittings, flanges, escutcheons, and wall brackets. 3. Joints: Tightly fitted and secured, machined smooth with hairline seams. 4. Field Connections: Provide sleeves to accommodate site assembly and installation. 5. Welded and Brazed Joints: Make exposed joints butt tight, flush, and hairline; use methods that avoid discoloration and damage of finish; grind smooth, polish, and restore to required finish.
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a. b.
Ease exposed edges to small uniform radius. Welded Joints: 1) Stainless Steel: Perform welding in accordance with AWS D 1.6.
B.
Base Mount Railing System: Engineered, base supported railing system with structural glass. 1. Top Cap: None 2. Base Shoe, Aluminum: ASTM B221, 6063 T5 alloy; 2-1/2 inch (64 mm) wide by 4-1/8 inch (105 mm) high, rectangular profile, mill finish. 3. Glass: As specified in this section. 4. Fasteners: a. Attachment to Steel: Provide 24 inch (610 mm) center-to-center hole spacing; 1/2 inch (13 mm), stainless steel, socket head cap screws for drilled and tapped or drilled and bolted attachment.
C.
Handrail: 1. 1-1/2 inch (38 mm) diameter stainless steel; No. 4 satin finish. 2. Handrail Brackets: Manufacturer's standard stainless steel brackets. a. Mounting: Glass. b. Finish: No. 4 satin finish.
2.03 MATERIALS A.
Aluminum Components: ASTM B221/B221M. 1. Natural Anodized Finish: Class I, AAMA 611 AA-M12C22A41 Clear anodic coating with electrolytically deposited organic seal; not less than 0.7 mils (0.018 mm) thick.
B.
Stainless Steel Components: 1. ASTM A666, Type 304. 2. Stainless Steel Tubing: 16 gage (0.0625 inch) (1.59 mm), 1-1/2 inch (38 mm) diameter. 3. Stainless Steel Finish: No. 4 Satin.
C.
Glass: Laminated safety glass; ASTM C 1172, unless otherwise indicated. 1. Plastic Interlayer: Minimum 0.060 inch (1.52 mm) thick. 2. Impact Strength: Category II, tested in accordance with 16 CFR 1201. 3. Thickness: 3/4 inch 4. Configuration: As indicated on drawings. 5. Edges: Ground smooth and polished. 6. Color: Clear, no tint.
2.04 ACCESSORIES A.
Non-Weld Mechanical Fittings for Aluminum Railings: Slip-on aluminum fittings, with flush setscrews for tightening by standard hex wrench, no bolts or screw fasteners.
B.
Welding Fittings: Factory- or shop-welded from matching pipe or tube; joints and seams ground smooth.
C.
Anchors and Fasteners: Provide anchors and other materials as required to attach to structure, made of same materials as railing components unless otherwise indicated; where exposed fasteners are unavoidable provide flush countersunk fasteners. 1. For anchorage to concrete, provide inserts to be cast into concrete for bolting anchors. 2. For anchorage to masonry, provide brackets to be embedded in masonry for bolting anchors. 3. For anchorage to stud walls, provide backing plates for bolting anchors. 4. Posts: Provide adjustable flanged brackets. 5. Exposed Fasteners: No exposed bolts or screws.
D.
Hydraulic Expansion Cement: ASTM C1107/C1107M.
E.
Bituminous Coating: Cold-applied asphalt mastic, noncorrosive compound free of asbestos, sulfur, and other deleterious impurities; 0.015 inch (0.4 mm) dry film thickness per coat..
F.
Sealant: Silicone; black.
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G.
Finish Touch-Up Materials: As recommended by manufacturer for field application.
PART 3 EXECUTION 3.01 EXAMINATION A.
Verify that substrate and site conditions are acceptable and ready to receive work.
B.
Verify field dimensions of locations and areas to receive work.
C.
Notify Architect immediately of conditions that would prevent satisfactory installation.
D.
Do not proceed with work until detrimental conditions have been corrected.
E.
Furnish components to be installed in other work to installer of that other work, including but not limited to blocking, sleeves, inserts, anchor bolts, embedded plates and supports for attachment of anchors.
3.02 PREPARATION A.
Protect existing work.
B.
Review installation drawings before beginning installation. Coordinate diagrams, templates, instructions and directions for installation of anchorages and fasteners.
C.
Clean surfaces to receive units. Remove materials and substances detrimental to the installation.
3.03 INSTALLATION A.
Comply with manufacturer's drawings and written instructions.
B.
Install components plumb and level, accurately fitted, free from distortion or defects and with tight joints, except where necessary for expansion.
C.
Anchor securely to structure.
D.
Conceal anchor bolts and screws whenever possible. Where not concealed, use flush countersunk fastenings.
E.
Isolate dissimilar materials with bituminous coating, bushings, grommets or washers to prevent electrolytic corrosion.
3.04 TOLERANCES A.
Maximum Variation From Plumb: 1/4 inch (6 mm) per floor level, non-cumulative.
B.
Maximum Offset From True Alignment: 1/4 inch (6 mm).
C.
Maximum Out-of-Position: 1/4 inch (6 mm).
3.05 FIELD QUALITY CONTROL A.
Field Services: Provide the services of the manufacturer for field observation of installation of railings.
3.06 CLEANING A.
Remove protective film from exposed metal surfaces.
B.
Metal: Clean exposed metal finishes with potable water and mild detergent, in accordance with manufacturer recommendations; do not use abrasive materials or chemicals, detergents or other substances that may damage the material or finish.
C.
Glass and Glazing: Clean glazing surfaces; remove excess glazing sealant compounds, dirt, and other substances.
3.07 PROTECTION A.
Protect installed components and finishes from damage after installation.
B.
Repair damage to exposed finishes to be indistinguishable from undamaged areas. 1. If damage to finishes and components cannot be repaired to be indistinguishable from undamaged finishes and components, replace damaged items. END OF SECTION
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SECTION 057300 - DECORATIVE METAL RAILINGS PART 1 - GENERAL 1.1
RELATED DOCUMENTS A.
1.2
Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. SUMMARY
A.
Section Includes: 1. 2. 3. 4. 5. 6. 7.
B.
Related Sections: 1. 2. 3. 4. 5. 6.
1.3
Aluminum decorative railings[ with stainless-steel, wire-rope guard infill]. Copper-alloy decorative railings. Stainless-steel decorative railings[ with stainless-steel, wire-rope guard infill]. Steel and iron decorative railings[ with stainless-steel, wire-rope guard infill]. Glass- and plastic-supported railings. Post-supported railings with glass infill. Illuminated decorative railings.
Division 05 Section "Metal Stairs" for steel tube railings included with metal stairs. Division 05 Section "Pipe and Tube Railings" for railings fabricated from pipe and tube components. Division 06 Section "[Rough Carpentry] [Miscellaneous Rough Carpentry]" for wood blocking for anchoring railings. Division 06 Section "[Exterior Finish Carpentry] [Interior Finish Carpentry] [Interior Architectural Woodwork]" for wood railings. Division 09 Section "Non-Structural Metal Framing" for metal backing for anchoring railings. Division 26 Sections for electrical service and connections for illuminated railings.
DEFINITIONS A.
1.4
Railings: Guards, handrails, and similar devices used for protection of occupants at open-sided floor areas, pedestrian guidance and support, visual separation, or wall protection. PERFORMANCE REQUIREMENTS
A.
Delegated Design: Design railings, including comprehensive engineering analysis by a qualified professional engineer, using performance requirements and design criteria indicated.
B.
General: In engineering railings to withstand structural loads indicated, determine allowable design working stresses of railing materials based on the following:
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C.
Aluminum: The lesser of minimum yield strength divided by 1.65 or minimum ultimate tensile strength divided by 1.95. Copper Alloys: 60 percent of minimum yield strength. Stainless Steel: 60 percent of minimum yield strength. Steel: 72 percent of minimum yield strength. Glass: 25 percent of mean modulus of rupture (50 percent probability of breakage), as listed in "Mechanical Properties" in AAMA's Aluminum Curtain Wall Series No. 12, "Structural Properties of Glass."
Handrails and Top Rails of Guards: a. b. c.
2.
b. 3.
Concentrated load of 50 lbf (0.22 kN) applied horizontally on an area of 1 sq. ft. (0.093 sq. m). Infill load and other loads need not be assumed to act concurrently.
Glass-Supported Railings: Support each section of top rail by a minimum of three glass panels or by other means so top rail will remain in place if any one panel fails.
Thermal Movements: Allow for thermal movements from ambient and surface temperature changes acting on exterior metal fabrications by preventing buckling, opening of joints, overstressing of components, failure of connections, and other detrimental effects. 1.
1.5
Uniform load of 50 lbf/ft. (0.73 kN/m) applied in any direction. Concentrated load of 200 lbf (0.89 kN) applied in any direction. Uniform and concentrated loads need not be assumed to act concurrently.
Infill of Guards: a.
E.
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Structural Performance: Railings shall withstand the effects of gravity loads and the following loads and stresses within limits and under conditions indicated: 1.
D.
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Temperature Change: 120 deg F (67 deg C), ambient; 180 deg F (100 deg C), material surfaces.
Control of Corrosion: Prevent galvanic action and other forms of corrosion by insulating metals and other materials from direct contact with incompatible materials. PRECONSTRUCTION TESTING
A.
Preconstruction Testing Service: [Owner will engage] [Engage] a qualified testing agency to perform preconstruction testing on laboratory mockups. Payment for these services will be made [by Owner] [from the testing and inspecting allowance, as authorized by Change Orders] [by Contractor]. Retesting of products that fail to meet specified requirements shall be done at Contractor's expense. 1. 2. 3.
Build laboratory mockups at testing agency facility; use personnel, materials, and methods of construction that will be used at Project site. Test railings according to ASTM E 894 and ASTM E 935. Notify Architect [seven] days in advance of the dates and times when laboratory mockups will be tested.
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SUBMITTALS A.
Product Data: For the following: 1. 2.
B.
LEED Submittals: 1.
C.
Manufacturer's product lines of railings assembled from standard components. Grout, anchoring cement, and paint products.
Product Data for Credit MR 4.1[ and Credit MR 4.2]: For products having recycled content, documentation indicating percentages by weight of postconsumer and preconsumer recycled content. Include statement indicating costs for each product having recycled content.
Shop Drawings: Include plans, elevations, sections, details, and attachments to other work. 1.
For illuminated railings, include wiring diagrams and roughing-in details.
D.
Samples for Initial Selection: For products involving selection of color, texture, or design[, including mechanical finishes].
E.
Samples for Verification: For each type of exposed finish required. 1. 2. 3. 4. 5. 6.
Sections of each distinctly different linear railing member, including handrails, top rails, posts, and balusters. Each type of glass required. Fittings and brackets. Welded connections. Brazed connections. Assembled Samples of railing systems, made from full-size components, including top rail, post, handrail, and infill. Show method of finishing members at intersections. Samples need not be full height.
F.
Delegated-Design Submittal: For installed products indicated to comply with performance requirements and design criteria, including analysis data signed and sealed by the qualified professional engineer responsible for their preparation.
G.
Qualification Data: For qualified [professional engineer] [testing agency].
H.
Mill Certificates: Signed by manufacturers of stainless-steel products certifying that products furnished comply with requirements.
I.
Welding certificates.
J.
Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified testing agency, according to ASTM E 894 and ASTM E 935.
K.
Preconstruction test reports.
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QUALITY ASSURANCE A.
Source Limitations: Obtain each type of railing from single source from single manufacturer.
B.
Product Options: Information on Drawings and in Specifications establishes requirements for system's aesthetic effects and performance characteristics. Aesthetic effects are indicated by dimensions, arrangements, alignment, and profiles of components and assemblies as they relate to sightlines, to one another, and to adjoining construction. Performance characteristics are indicated by criteria subject to verification by one or more methods including structural analysis, preconstruction testing, field testing, and in-service performance. 1.
C.
Product Options: Drawings indicate size, profiles, and dimensional requirements of railings and are based on the specific system indicated. Refer to Division 01 Section "Product Requirements." 1.
D.
Do not modify intended aesthetic effects, as judged solely by Architect, except with Architect's approval. If modifications are proposed, submit comprehensive explanatory data to Architect for review.
Do not modify intended aesthetic effects, as judged solely by Architect, except with Architect's approval. If modifications are proposed, submit comprehensive explanatory data to Architect for review.
Welding Qualifications: Qualify procedures and personnel according to the following: 1. 2. 3.
AWS D1.1/D1.1M, "Structural Welding Code - Steel." AWS D1.2/D1.2M, "Structural Welding Code - Aluminum." AWS D1.6, "Structural Welding Code - Stainless Steel."
E.
Safety Glazing Labeling: Permanently mark glass with certification label of [the SGCC] [the SGCC or another certification agency acceptable to authorities having jurisdiction] [or] [manufacturer]. Label shall indicate manufacturer's name, type of glass, thickness, and safety glazing standard with which glass complies.
F.
Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.
G.
Mockups: Build mockups to verify selections made under sample submittals and to demonstrate aesthetic effects and set quality standards for fabrication and installation. 1. 2.
3. H.
Build mockups as shown on Drawings. Build mockups for each form and finish of railing consisting of two posts, top rail, infill area, and anchorage system components that are full height and are not less than 24 inches (600 mm) in length. Approved mockups may become part of the completed Work if undisturbed at time of Substantial Completion.
Preinstallation Conference: Conduct conference at [Project site] .
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PROJECT CONDITIONS A.
1.9
Field Measurements: Verify actual locations of walls and other construction contiguous with railings by field measurements before fabrication and indicate measurements on Shop Drawings. COORDINATION AND SCHEDULING
A.
Coordinate selection of shop primers with topcoats to be applied over them. Comply with paint and coating manufacturers' written recommendations to ensure that shop primers and topcoats are compatible with one another.
B.
Coordinate installation of anchorages for railings. Furnish setting drawings, templates, and directions for installing anchorages, including sleeves, concrete inserts, anchor bolts, and items with integral anchors, that are to be embedded in concrete or masonry. Deliver such items to Project site in time for installation.
C.
Schedule installation so wall attachments are made only to completed walls. Do not support railings temporarily by any means that do not suit structural performance requirements.
PART 2 - PRODUCTS 2.1
MANUFACTURERS A.
Manufacturers: Subject to compliance with requirements, [provide products by one of the following] [available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following]: 1.
Aluminum Decorative Railings: a. b. c. d. e. f. g. h. i. j. k. l. m. n. o. p. q. r.
Architectural Metal Works. Architectural Railings & Grilles, Inc. ATR Technologies, Inc. Blum, Julius & Co., Inc. Blumcraft of Pittsburgh. Braun, J. G., Company; a division of the Wagner Companies. CraneVeyor Corp. Laurence, C. R. Co., Inc. Livers Bronze Co. Newman Brothers, Inc. Pisor Industries, Inc. Platers Polishing Company; a division of Rippel Architectural Metals. Poma Corporation. Sterling Dula Architectural Products, Inc.; Div. of Kane Manufacturing. Superior Aluminum Products, Inc. Wagner, R & B, Inc.; a division of the Wagner Companies. Wylie Systems. .
Steel and Iron Decorative Railings: a. b. c. d. e. f. g. h. i. j. k. l. m.
5.
Architectural Metal Works. Blum, Julius & Co., Inc. Blumcraft of Pittsburgh. Braun, J. G., Company; a division of the Wagner Companies. CraneVeyor Corp. Lavi Industries. Livers Bronze Co. Newman Brothers, Inc. Platers Polishing Company; a division of Rippel Architectural Metals. Tri Tech, Inc. Wagner, R & B, Inc.; a division of the Wagner Companies. Wylie Systems. .
Glass- and Plastic-Supported Railings:
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Architectural Metal Works. Blum, Julius & Co., Inc. Blumcraft of Pittsburgh. Clearail, Inc. CraneVeyor Corp. Livers Bronze Co. Newman Brothers, Inc. Platers Polishing Company; a division of Rippel Architectural Metals. TACO Metals Inc. Tri Tech, Inc. .
METALS, GENERAL A.
Metal Surfaces, General: Provide materials with smooth surfaces, without seam marks, roller marks, rolled trade names, stains, discolorations, or blemishes.
B.
Brackets, Flanges, and Anchors: Same metal and finish as supported rails unless otherwise indicated. 1. 2. 3. 4.
2.3
Provide cast-metal brackets with flange tapped for concealed anchorage to threaded hanger bolt. Provide either formed- or cast-metal brackets with predrilled hole for exposed bolt anchorage. Provide formed-steel brackets with predrilled hole for bolted anchorage and with snap-on cover that matches rail finish and conceals bracket base and bolt head. Provide extruded-aluminum brackets with interlocking pieces that conceal anchorage. Locate set screws on bottom of bracket.
ALUMINUM A.
Aluminum, General: Provide alloy and temper recommended by aluminum producer and finisher for type of use and finish indicated, and with strength and durability properties for each aluminum form required not less than that of alloy and temper designated below.
B.
Extruded Bars and Shapes[, Including Extruded Tubing]: ASTM B 221 (ASTM B 221M), Alloy 6063-T5/T52.
C.
Extruded Structural [Pipe] [and] [Round Tubing]: ASTM B 429/B 429M, Alloy 6063-T6. 1.
Provide Standard Weight (Schedule 40) pipe unless otherwise indicated.
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D.
Drawn Seamless Tubing: ASTM B 210 (ASTM B 210M), Alloy 6063-T832.
E.
Plate and Sheet: ASTM B 209 (ASTM B 209M), [Alloy 5005-H32] [Alloy 6061-T6].
F.
Die and Hand Forgings: ASTM B 247 (ASTM B 247M), Alloy 6061-T6.
G.
Castings: ASTM B 26/B 26M, Alloy A356.0-T6.
H.
Perforated Metal: Aluminum sheet, ASTM B 209 (ASTM B 209M), Alloy 6061-T6, [0.063 inch (1.60 mm)] thick, [with 1/4-inch (6.4-mm) holes 3/8 inch (9.5 mm) o.c. in staggered rows] . 1.
I.
2.4
Basis-of-Design Product: Provide product with perforations matching .
Wire Rope: [1-by-19] [7-by-7] [7-by-19] wire rope made from wire complying with ASTM A 492, Type 316. Wire-Rope Fittings: Connectors of types indicated, fabricated from stainless steel, and with capability to sustain, without failure, a load equal to minimum breaking strength of wire rope with which they are used.
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2.6
Style Designation: [3/4 number 13] [1-1/2 number 10] .
Perforated Metal: Stainless-steel sheet, ASTM A 240/A 240M or ASTM A 666, [Type 304] [Type 316L], [0.062 inch (1.59 mm)] thick, [with 1/4-inch (6.4-mm) holes 3/8 inch (9.5 mm) o.c. in staggered rows] . 1.
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Expanded Metal: ASTM F 1267, [Type I (expanded)] [Type II (expanded and flattened)], Class 3 (corrosion-resisting steel), made from stainless-steel sheet complying with ASTM A 666, [Type 304] [Type 316]. 1.
H.
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Basis-of-Design Product: Provide product with perforations matching .
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Woven-Wire Mesh: Intermediate-crimp, [diamond] [square] pattern, 2-inch (50-mm) wovenwire mesh, made from 0.135-inch (3.5-mm) nominal diameter wire complying with ASTM A 510 (ASTM A 510M). GLASS AND GLAZING MATERIALS
A.
Tempered Glass: ASTM C 1048, Kind FT (fully tempered), Condition A (uncoated), Type 1 (transparent flat glass), Quality-Q3. Provide products that have been tested for surface and edge compression according to ASTM C 1048 and for impact strength according to 16 CFR 1201 for Category II materials. 1. 2. 3. 4. 5. 6.
B.
Glass Color: [Clear] [Blue] [Blue-green] [Bronze] [Green] [Gray] . Thickness for Structural Glass Balusters: [12.0] [19.0] mm. Thickness for Structural Glass Balusters: As required by structural loads, but not less than [12.0] [19.0] mm. Thickness for Glass Infill Panels: [6.0] [10.0] mm. Thickness for Glass Infill Panels: As required by structural loads, but not less than [6.0] [10.0] mm. Thickness: As indicated on Drawings.
Laminated Glass: ASTM C 1172, Condition A (uncoated), Type I (transparent flat glass), Quality-Q3 with two plies of glass and polyvinyl butyral interlayer not less than 0.060 inch (1.52 mm) thick. 1.
Products: Subject to compliance with requirements, [provide the following] [provide one of the following] [available products that may be incorporated into the Work include, but are not limited to, the following]: a.
2.
Basis-of-Design Product: Subject to compliance with requirements, provide .
.
Plastic Structural Glazing: Uncoated, transparent, monolithic acrylic sheet complying with ASTM D 4802, Category A-1 or A-2 (cell cast or continuous cast), Finish 1 (smooth or polished), and as follows: 1.
F.
or comparable product by one of the following: a.
E.
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Ceramic-Coated Glass: Heat-treated float glass, Condition C; with ceramic enamel applied by silk-screened process; complying with Specification No. 95-1-31 in GANA's "Engineering Standards Manual" and with other requirements specified. 1.
D.
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Glazing Cement: Nonshrinking organic cement designed for curing by passing an electric current through metal subrail holding glass panel, as standard with manufacturer.
Glazing Gaskets for Glass Infill Panels: Glazing gaskets and related accessories recommended or supplied by railing manufacturer for installing glass infill panels in post-supported railings. FASTENERS
A.
Fastener Materials: Unless otherwise indicated, provide the following: 1. 2. 3. 4.
Aluminum Components: [Type 304] [Type 316] stainless-steel fasteners. Copper-Alloy (Bronze) Components: Silicon bronze (Alloy 651 or Alloy 655) fasteners[ where concealed; muntz metal (Alloy 280) fasteners where exposed]. Copper-Alloy (Brass) Components: Silicon bronze (Alloy 651 or Alloy 655) fasteners[ where concealed; brass (Alloy 260 or Alloy 360) fasteners where exposed]. Stainless-Steel Components: [Type 304] [Type 316] stainless-steel fasteners.
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Uncoated Steel Components: Plated-steel fasteners complying with ASTM B 633, Class Fe/Zn 25 for electrodeposited zinc coating where concealed; Type 304 stainlesssteel fasteners where exposed. Galvanized-Steel Components: Plated-steel fasteners complying with ASTM B 633, Class Fe/Zn 25 for electrodeposited zinc coating. Dissimilar Metals: [Type 304] [Type 316] stainless-steel fasteners.
B.
Fasteners for Anchoring to Other Construction: Select fasteners of type, grade, and class required to produce connections suitable for anchoring railings to other types of construction indicated[ and capable of withstanding design loads].
C.
Provide concealed fasteners for interconnecting railing components and for attaching railings to other work unless [otherwise indicated] [exposed fasteners are unavoidable] [exposed fasteners are the standard fastening method for railings indicated]. 1.
Provide [Phillips] [tamper-resistant] [square or hex socket] flat-head machine screws for exposed fasteners unless otherwise indicated.
D.
Anchors, General: Anchors capable of sustaining, without failure, a load equal to six times the load imposed when installed in unit masonry and four times the load imposed when installed in concrete, as determined by testing according to ASTM E 488, conducted by a qualified independent testing agency.
E.
Post-Installed Anchors: [Torque-controlled expansion anchors] [or] [chemical anchors]. 1.
2.
2.9
Material for Interior Locations: Carbon-steel components zinc plated to comply with ASTM B 633 or ASTM F 1941 (ASTM F 1941M), Class Fe/Zn 5, unless otherwise indicated. Material for Exterior Locations and Where Stainless Steel Is Indicated: Alloy [Group 1 (A1)] [Group 2 (A4)] stainless-steel bolts, ASTM F 593 (ASTM F 738M), and nuts, ASTM F 594 (ASTM F 836M).
MISCELLANEOUS MATERIALS A.
Wood Rails: Clear, straight-grained hardwood rails secured to [recessed] [exposed] metal subrail. 1. 2. 3.
4.
B.
Species: [Ash] [Cherry] [Red oak] [Walnut] [White oak] . Finish: [Manufacturer's standard] [Transparent polyurethane] [Penetrating oil] [Acrylic impregnated]. Staining: [None] [Match Architect's sample] [As selected by Architect from manufacturer's full range]
