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HomeMy WebLinkAbout05 73 13 Glazed Decorative Metal RailingsTHE KENT 05 73 13 - THE KENT Issue Date 05.09.18 GLAZED DECORATIVE METAL RAILINGS THE KENT SECTION 05 73 13 - GLAZED DECORATIVE METAL RAILINGS PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section Includes: 1. Aluminum post-supported railings with glass infill. B. Related Requirements: 1. Section 06 10 00 "Rough Carpentry" for wood blocking for anchoring railings. 2. Section 09 22 16 "Non-Structural Metal Framing" for metal backing for anchoring railings. 1.3 DEFINITIONS A. Railings: Guards, handrails, and similar devices used for protection of occupants at open-sided floor areas and for pedestrian guidance and support, visual separation, or wall protection. 1.4 COORDINATION AND SCHEDULING A. Coordinate selection of shop primers with topcoats to be applied over them. Comply with paint and coating manufacturers' written instructions to ensure that shop primers and topcoats are compatible. 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 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 satisfy structural performance requirements. 1.5 PRE-INSTALLATION MEETINGS A. Pre-installation Conference: Conduct conference at Project site. 1.6 ACTION SUBMITTALS A. Product Data: For the following: THE KENT 05 73 13 - THE KENT Issue Date 05.09.18 GLAZED DECORATIVE METAL RAILINGS THE KENT 1. Manufacturer's product lines of railings assembled from standard components. 2. Grout, anchoring cement, and paint products. B. Shop Drawings: Include plans, elevations, sections, and attachment details. 1. For installed products indicated to comply with design loads, include structural analysis data signed and sealed by the qualified professional engineer responsible for their preparation. C. Samples for Initial Selection: For products involving selection of color, texture, or design, including mechanical finishes. D. Samples for Verification: For each type of exposed finish required. 1. Sections of each distinctly different linear railing member, including handrails, top rails, posts, and balusters. 2. Each type of glass required. 3. Fittings and brackets. 4. 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. E. 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. 1.7 INFORMATIONAL SUBMITTALS A. Qualification Data: For professional engineer and testing agency. B. Mill Certificates: Signed by manufacturers of stainless steel products certifying that products furnished comply with requirements. C. Evaluation Reports: For post-installed anchors, from ICC-ES. 1.8 QUALITY ASSURANCE A. Source Limitations: Obtain each type of railing through one source from a single manufacturer. B. Mockups: Build mockups, if requested in writing by Architect, to verify selections made under Sample submittals, to demonstrate aesthetic effects, and to set quality standards for fabrication and installation. 1. Build mockups as shown on Drawings. 2. 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 in length. 3. Subject to compliance with requirements, approved mockups may become part of the completed Work if undisturbed at time of Substantial Completion. THE KENT 05 73 13 - THE KENT Issue Date 05.09.18 GLAZED DECORATIVE METAL RAILINGS THE KENT 1.9 FIELD CONDITIONS A. Field Measurements: Verify actual locations of walls and other construction contiguous with railings by field measurements before fabrication and indicate measurements on Shop Drawings. PART 2 - PRODUCTS 2.1 MANUFACTURERS A. Manufacturer: Subject with compliance with requirements, provide the following or approved equivalent: 1. Hollaender Manufacturing, 10285 Wayne Avenue, Cincinnati, OH 45215-6399, Ph.: 800.772.8800. a. Product: Interna-Rail VUE for Glass. B. Source Limitations: Obtain each type of railing from single source from single manufacturer. C. 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. 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. D. Product Options: Drawings indicate size, profiles, and dimensional requirements of railings and are based on the specific system indicated. See Section 01 60 00 "Product Requirements." 1. 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. 2.2 PERFORMANCE REQUIREMENTS A. Delegated Design: Engage a qualified professional engineer, as defined in Section 01 40 00 "Quality Requirements," to design railings, including attachment to building construction. B. All railings shall be supplied to conform to applicable sections of the following codes: 1. International Building Code. 2. ADAAG. C. General: In engineering railings to withstand structural loads indicated, determine allowable design working stresses of railing materials based on the following: 1. Aluminum: The lesser of minimum yield strength divided by 1.65 or minimum ultimate tensile strength divided by 1.95. 2. Stainless Steel: 60 percent of minimum yield strength. 3. Steel: 72 percent of minimum yield strength. THE KENT 05 73 13 - THE KENT Issue Date 05.09.18 GLAZED DECORATIVE METAL RAILINGS THE KENT 4. 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." D. Structural Performance: Railings, including attachment to building construction, shall withstand the effects of gravity loads and the following loads and stresses within limits and under conditions indicated: 1. Handrails and Top Rails of Guards: a. Uniform load of 50 lbf/ft. applied in any direction. b. Concentrated load of 200 lbf applied in any direction. c. Uniform and concentrated loads need not be assumed to act concurrently. 2. Infill of Guards: a. Concentrated load of 50 lbf applied horizontally on an area of 1 sq. ft. b. Infill load and other loads need not be assumed to act concurrently. 3. 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. E. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes acting on exterior railings by preventing buckling, opening of joints, overstressing of components, failure of connections, and other detrimental effects. 1. Temperature Change: 120 deg F, ambient; 180 deg F, material surfaces. 2.3 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. 2.4 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: ASTM B 221, Alloy 6063-T5/T52, 6005-T5. C. Extruded Structural Pipe and Round Tubing: ASTM B 429, Alloy 6061-T6. 1. Provide 1-1/2-inch IPS (1.90 in OD) Standard Weight (Schedule 40) pipe for rails, Schedule 80 for posts, unless otherwise indicated. D. Drawn Seamless Tubing: ASTM B 210, Alloy 6063-T832. E. Plate and Sheet: ASTM B 209, Alloy 6061-T6. F. Die and Hand Forgings: ASTM B 247, Alloy 6061-T6. G. Base Flange Castings: ASTM B 26, Alloy Almag 535. THE KENT 05 73 13 - THE KENT Issue Date 05.09.18 GLAZED DECORATIVE METAL RAILINGS THE KENT 2.5 GLASS AND GLAZING MATERIALS A. Safety Glazing: Glazing shall comply with 16 CFR 1201, Category II. B. 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. Glass Color: Clear. 2. Thickness for Glass Infill Panels: 3/8 inch with maximum spacing between posts to be 4 ft. C. Glazing Cement and Accessories for Structural Glazing: Glazing cement, setting blocks, shims, and related accessories as recommended or supplied by railing manufacturer for installing structural glazing in metal sub-rails. 1. Glazing Cement: Non-shrinking organic cement designed for curing by passing an electric current through metal sub-rail holding glass panel, as standard with manufacturer. D. 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. 2.6 FLANGES AND ANCHORS A. Anchors: Provide concrete adhesive anchors where indicated or necessary. B. Flanges: 1. For level railing, provide Hollaender 142-8 internal cast flanges with four holes, capped with Hollaender 242-8 anodized aluminum escutcheon plate. 2. For raked railing on steel stringers, use Hollaender 146I-8 internal spud with integral cover plate. 3. For side mount, use Hollaender 52E-8 flange. 2.7 FASTENERS A. General: Provide the following: 1. Aluminum Railings: Type 302 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. Structural Fasteners for Interconnecting Railing Components: 1. The top rail shall be connected to the main body of the post with Hollaender 255-8 EXT tees. Tee fittings shall be manufactured from 6063-T6 aluminum alloy and shall be internally connected to the rail by the means of 5/16 inch set screw that engages a lug on the 255-8 tee through the wall of the Sch 80 post. The stainless-steel set screw shall have an internal/external, reverse knurl, cup point. This combination shall prevent any loosening of the system due to changes in temperature or vibration. Systems using pop rivets or adhesives will not be accepted. THE KENT 05 73 13 - THE KENT Issue Date 05.09.18 GLAZED DECORATIVE METAL RAILINGS THE KENT D. Glass panels shall be secured to the post using Hollaender 244-8 two-piece glass panel clips. 244-8 clips shall be manufactured from 6063-T6 aluminum alloy and secured to the rails using anodized aluminum tubular rivet nuts, size 5/16-18 UNC and stainless-steel socket head cap screws. The glass shall be supported at the bottom using Hollaender 244B-8 glass support clips. No holes shall be drilled in the glass except at corner or end post conditions. 2.8 HANDRAIL FOR ADA APPLICATIONS OR STAIRS (AS REQUIRED) A. Stairways shall have handrails on both sides. B. Handrail shall be attached to the guardrail sections using Hollaender Model 87-8 adjustable brackets. C. Handrail shall be installed at a height of 34-38 inches above ramp surface or stair tread nosings. D. Handrails shall be anodized aluminum 6063 Sch 40, 1-1/2-inch IPS nominal (1.90 inch OD) and shall have a continuous surface. Where necessary, lengths of handrail will be spliced using Hollaender Model 70ES-8 internal locking splices. E. Handrails shall return to a wall, guard or walking surface. If returning to the guard, Hollaender Model 185 post return swivel shall be used to connect the end of the handrail to the guardrail post. 2.9 MISCELLANEOUS MATERIALS A. Bituminous Paint: Cold-applied asphalt emulsion complying with ASTM D 1187. 2.10 FABRICATION A. General: Fabricate railings to comply with requirements indicated for design, dimensions, member sizes and spacing, details, finish, and anchorage, but not less than that required to support structural loads. B. Assemble railings in the shop to greatest extent possible to minimize field splicing and assembly. Disassemble units only as necessary for shipping and handling limitations. Clearly mark units for reassembly and coordinated installation. Use connections that maintain structural value of joined pieces. C. Cut, drill, and punch metals cleanly and accurately. Remove burrs and ease edges to a radius of approximately 1/32 inch unless otherwise indicated. Remove sharp or rough areas on exposed surfaces. D. Form work true to line and level with accurate angles and surfaces. E. Fabricate connections that will be exposed to weather in a manner to exclude water. Provide weep holes where water may accumulate. Locate weep holes in inconspicuous locations. F. Cut, reinforce, drill, and tap as indicated to receive finish hardware, screws, and similar items. THE KENT 05 73 13 - THE KENT Issue Date 05.09.18 GLAZED DECORATIVE METAL RAILINGS THE KENT G. Non-welded Connections: Connect members with concealed mechanical fasteners and fittings. Fabricate members and fittings to produce flush, smooth, rigid, hairline joints. 1. Fittings to be of the internal double tang type activated by a reverse knurl cup point set screw. Reverse knurl is required to ensure that screw does not come loose under vibration. Plain cup point screws will not be acceptable. Fittings to be fastened to pipe by means of a 5/16-inch tubular rivet nut and socket head cap screw. H. Form changes in direction as follows: 1. By flush bends or by inserting prefabricated flush-elbow fittings. I. Form simple and compound curves by bending members in jigs to produce uniform curvature for each configuration required; maintain cross section of member throughout entire bend without buckling, twisting, cracking, or otherwise deforming exposed surfaces of components. J. Provide wall returns at ends of wall-mounted handrails, unless otherwise indicated. Close ends of returns unless clearance between end of rail and wall is ¼ inch or less. K. Brackets, Flanges, Fittings, and Anchors: Provide wall brackets, flanges, miscellaneous fittings, and anchors to interconnect railing members to other work unless otherwise indicated. Flanges to be sand cast from aluminum alloy 535 with anodized finish and fastened directly to the post by means of two reverse knurl cup point set screws. L. Fabricate splice joints for field connection using an epoxy structural adhesive if this is manufacturer’s standard splicing method. Fabricate anchorage devices capable of withstanding loads imposed by railings. Coordinate anchorage devices with supporting structure. 2.11 GLAZING PANEL FABRICATION A. General: Fabricate to sizes and shapes required; provide for proper edge clearance and bite on glazing panels. 1. Clean-cut or flat-grind edges at butt-glazed sealant joints to produce square edges with slight chamfers at junctions of edges and faces. 2. Grind smooth exposed edges, including those at open joints, to produce square edges with slight chamfers at junctions of edges and faces. B. Infill Panels: Provide tempered glass panels. 2.12 GENERAL FINISH REQUIREMENTS A. Comply with NAAMM’s “Metal Finishes Manual for Architectural and Metal Products” for recommendations for applying and designating finishes. B. Protect mechanical finishes on exposed surfaces from damage by applying a strippable, temporary protective covering before shipment. C. Appearance of Finished Work: Noticeable variations in same piece are not acceptable. Variations in appearance of abutting or adjacent pieces are acceptable if they are within one- half of the range of approved Samples. Variations in appearance of other components are acceptable if they are within the range of approved Samples and are assembled or installed to minimize contrast. THE KENT 05 73 13 - THE KENT Issue Date 05.09.18 GLAZED DECORATIVE METAL RAILINGS THE KENT D. Provide exposed fasteners with finish matching appearance, including color and texture, of railings. 2.13 ALUMINUM FINISHES A. Finish designations prefixed by AA comply with the system established by the Aluminum Association for designating aluminum finishes. B. Unless indicated otherwise, provide aluminum with the following finish: 1. Clear Anodized Finish: AA-M10C22A41 (Architectural class, .7 mil thickness or greater). PART 3 - EXECUTION 3.1 INSTALLATION, GENERAL A. Examine plaster and gypsum board assemblies, where reinforced to receive anchors, to verify that locations of concealed reinforcements have been clearly marked for Installer. Locate reinforcements and mark locations if not already done. 3.2 INSTALLATION A. Fit exposed connections together to form tight, hairline joints. B. Perform cutting, drilling, and fitting required for installing railings. Set railings accurately in location, alignment, and elevation; measured from established lines and levels and free of rack. 1. Do not weld, cut, or abrade surfaces of railing components that have been coated or finished after fabrication and that are intended for field connection by mechanical or other means without further cutting or fitting. 2. Set posts plumb within a tolerance of 1/16 inch in 3 feet. 3. Align rails so variations from level for horizontal members and variations from parallel with rake of steps and ramps for sloping members do not exceed 1/4 inch in 12 feet. C. Corrosion Protection: Coat concealed surfaces of aluminum that will be in contact with grout, concrete, masonry, wood or dissimilar metals, with a heavy coat of bituminous paint. D. Adjust railings before anchoring to ensure matching alignment at abutting joints. E. Fastening to In-Place Construction: Use anchorage devices and fasteners where necessary for securing railings and for properly transferring loads to in-place construction. 3.3 RAILING CONNECTIONS A. Non-welded Connections: Use mechanical for permanently connecting railing components. Use wood blocks and padding to prevent damage to railing members and fittings. Seal recessed holes of exposed locking screws using plastic cement filler colored to match finish of railings. THE KENT 05 73 13 - THE KENT Issue Date 05.09.18 GLAZED DECORATIVE METAL RAILINGS THE KENT B. Expansion Joints: Install expansion joints at locations indicated but not farther apart than required to accommodate thermal movement. Provide slip-joint internal sleeve extending 2 inches beyond joint on either side, fasten internal sleeve securely to one side, and locate joint within 6 inches of post. 3.4 ANCHORING RAILING ENDS A. Anchor railing ends to concrete and masonry with round flanges connected to railing ends and anchored to wall construction with anchors and bolts. B. Anchor railing ends to metal surfaces with flanges bolted to metal surfaces and connected to railing ends using non-welded connections. 3.5 ATTACHING HANDRAILS TO WALLS A. Attach handrails to wall with wall brackets. Provide brackets with 1-1/2-inch clearance from inside face of handrail and finished wall surface. B. Locate brackets as indicated or, if not indicated, at spacing required to support structural loads. C. Secure wall brackets to building construction as indicated, or if not indicated, as follows: 1. For concrete and solid masonry anchorage, use drilled-in expansion shields and hanger or lag bolts. 2. For hollow masonry anchorage, use toggle bolts. 3. Provide blocking between studs in stud wall construction. 3.6 INSTALLING GLASS PANELS A. Glass-Supported Railings: Install assembly to comply with railing manufacturer's written instructions. 1. Adjust spacing of glass panels so gaps between panels are equal before securing in position. 2. Erect glass railings under direct supervision of manufacturer's authorized technical personnel. B. Post-Supported Glass Railings: Install assembly to comply with railing manufacturer's written instructions and with requirements in other Part 3 articles. Erect posts and other metal railing components, then set factory-cut glass panels. Do not cut, drill, or alter glass panels in field. Protect edges from damage. 3.7 CLEANING A. Clean aluminum by washing thoroughly with water and soap, rinsing with clean water, and wiping dry. B. Clean and polish glass as recommended in writing by manufacturer. Wash both exposed surfaces in each area of Project not more than four days before date scheduled for inspections that establish date of Substantial Completion. THE KENT 05 73 13 - THE KENT Issue Date 05.09.18 GLAZED DECORATIVE METAL RAILINGS THE KENT 3.8 PROTECTION A. Protect finishes of railings from damage during construction period with temporary protective coverings approved by railing manufacturer. Remove protective coverings at time of Substantial Completion. B. Restore finishes damaged during installation and construction period so no evidence remains of correction work. Return items that cannot be refinished in the field to the shop; make required alterations and refinish entire unit or provide new units. END OF SECTION 05 73 13