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HomeMy WebLinkAbout05-7300-Decorative-Metal-Railings-(Part-of-FSB-05-0001)_Rev_1Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 DECORATIVE METAL RAILINGS 05 7300 - 1 SECTION 05 7300 DECORATIVE METAL RAILINGS (Part of Filed Sub-Bid Section 05 0001 - Miscellaneous And Ornamental Iron) 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. Work Included: Provide labor, materials and equipment necessary to complete the work of this Section, including but not limited to the following: 1. Interior steel decorative railings. 2. Other items indicated on Drawings as Work of this Section. B. Related Requirements: 1. Section 01 8113 “Sustainable Design Requirements” for general requirements and procedures for compliance with certain USGBC LEED prerequisites and credits. 2. Section 05 5113 “Metal Pan Stairs.” 3. Section 05 5213 "Pipe and Tube Railings" for exterior nonornamental railings fabricated from pipes and tubes. 4. Section 05 7100 “Decorative Metal Stairs.” 5. Section 05 7500 “Decorative Formed Metal” for perforated aluminum intake grilles at recessed base for mechanical units. 6. Section 06 1000 "Rough Carpentry" for wood blocking for anchoring railings. 1.3 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. 1.4 PREINSTALLATION MEETINGS A. Preinstallation Conference: Conduct conference at Project site. 1.5 ACTION SUBMITTALS A. Make Submittals in accordance with Section 01 3300 “Submittal Procedures.” Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 DECORATIVE METAL RAILINGS 05 7300 - 2 B. Product Data: 1. Manufacturer's product lines of decorative metal railings assembled from standard components. 2. Fasteners. 3. Post-installed anchors. 4. Handrail brackets. 5. Shop primer. 6. Bituminous paint. 7. Nonshrink, nonmetallic grout. 8. Metal finishes. C. Sustainable Design Submittals: 1. Environmental Product Declaration (EPD): Provide manufacturers’ product documentation for each product having an Environmental Product Declaration (EPD). a. Documentation should confirm EPD conforms with ISO 14205, 14040, 14044 and EN 15804 or ISO 21930 b. EPD shall have at least Cradle to Grave scope, c. Complete "LEED Materials Documentation Sheet" with MRc2 information for each product having an EPD. 2. Recycled Content: Provide manufacturers’ product documentation that includes recycled content claims for the products contributing towards compliance. Claims must conform to the definition in ISO 14021-1999, Environmental Labels and Declarations, Self-Declared Environmental Claims. a. Complete "LEED Materials Documentation Sheet" with MRc3 Option 2 information for products with recycled content installed in the building. 3. Paints And Coatings: Provide manufacturers' or third-party certification of testing to and compliance with the California Department of Public Health (CDPH) Standard method v1.2-2017 that includes the following information: a. The exposure scenario used to determine compliance. b. The range of total VOCs after 14 days, measured as specified in the CDPH Standard Method v1.2: 1) 0.5 mg/m^3 or less; 2) Between 0.5 and 5.0 mg/m^3; or 3) 5.0 mg/m^3 or more. c. Laboratory accreditation under ISO/IEC 17025. d. Claims of compliance for wet-applied products must state the amount applied in mass per surface area. e. Provide MSDS or other manufacturer documentation with disclosure of VOC content for all wet-applied products. f. Complete "LEED Materials Documentation Sheet" with IEQc2 information for paints/coatings installed within the waterproofing membrane. D. Shop Drawings: Include plans, elevations, sections, and attachment details. E. 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. Fittings, end caps, and brackets. 3. Welded connections. 4. Assembled Sample of railing system, made from full-size components, including top rail, post, handrail, and guard infill. Sample need not be full height. a. Show method of connecting and finishing members at intersections. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 DECORATIVE METAL RAILINGS 05 7300 - 3 F. Delegated-Design Submittal: For railings, including analysis data signed and sealed by the qualified professional engineer responsible for their preparation. 1.6 INFORMATIONAL SUBMITTALS A. Qualification Data: For delegated-design professional engineer. B. Welding certificates. C. Paint Compatibility Certificates: From manufacturers of topcoats applied over shop primers, certifying that shop primers are compatible with topcoats. D. Research Reports: For post-installed anchors, from ICC-ES or other qualified testing agency acceptable to authorities having jurisdiction. 1.7 QUALITY ASSURANCE A. Welding Qualifications: Qualify procedures and personnel in accordance with the following: 1. AWS D1.1/D1.1M, "Structural Welding Code - Steel." B. Mockups: Build mockups to verify selections made under Sample submittals, to demonstrate aesthetic effects, and to set quality standards for fabrication and installation. 1. 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. 2. Subject to compliance with requirements, approved mockups may become part of the completed Work if undisturbed at time of Substantial Completion. 1.8 FIELD CONDITIONS A. Field Measurements: Verify actual locations of walls and other construction contiguous with railings by field measurements before fabrication. PART 2 - PRODUCTS 2.1 LEED REQUIREMENTS A. Environmental Product Declaration (EPD): Provide products with Third Party Environmental Product Declaration (EPD) whenever available. B. Recycled Content: Provide products with the maximum recycled content possible. Minimum recycled content 20 percent. C. Paints And Coatings: For field applications that are inside the weatherproofing membrane: Paints and Coatings must be tested and determined compliant in accordance with California Department of Public Health (CDPH) Standard Method v1.2-2017, using the applicable exposure scenario. The default scenario if the private office scenario. 1. All paints and coatings wet-applied on site must meet the applicable VOC limits of the California Air Resources Board (CARB) 2007, Suggested Control Measure (SCM) for Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 DECORATIVE METAL RAILINGS 05 7300 - 4 Architectural Coatings, or the South Coast Air Quality Management District (SCAQMD) Rule 1113, effective February 5, 2016. 2.2 PERFORMANCE REQUIREMENTS A. Delegated Design: Engage a qualified professional engineer, as defined in Section 01 4000 "Quality Requirements," to design railings, including attachment to building construction. B. 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. 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 STEEL AND IRON DECORATIVE RAILINGS A. Source Limitations: Obtain steel decorative railing components from single source from single manufacturer. B. Tubing: ASTM A500/A500M (cold formed) or ASTM A513/A513M, Type 5. C. Bars: Hot-rolled, carbon steel complying with ASTM A29/A29M, Grade 1010. D. Plates, Shapes, and Bars: ASTM A36/A36M. E. Cast Iron: Either gray iron, ASTM A48/A48M, or malleable iron, ASTM A47/A47M, unless otherwise indicated. 2.5 FASTENERS A. Fastener Materials: 1. Ungalvanized-Steel Railing Components: Plated-steel fasteners complying with ASTM F1941/F1941M, Class Fe/Zn 5 for electrodeposited zinc coating where concealed; Type 304 stainless steel fasteners where exposed. 2. Dissimilar Metal Railing Components: Type 304 stainless steel fasteners. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 DECORATIVE METAL RAILINGS 05 7300 - 5 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 and capable of withstanding design loads. C. Provide concealed fasteners for interconnecting railing components and for attaching railings to other work unless exposed fasteners are unavoidable. 1. Provide tamper-resistant flat-head machine screws for exposed fasteners. D. Post-Installed Anchors: Fastener systems with working capacity greater than or equal to the design load, in accordance with an evaluation report acceptable to authorities having jurisdiction, based on ICC-ES AC193 or ICC-ES AC308. 1. Material for Interior Locations: Carbon-steel components zinc plated to comply with ASTM B633 or ASTM F1941/F1941M, Class Fe/Zn 5, unless otherwise indicated. 2.6 MISCELLANEOUS MATERIALS A. Handrail Brackets: Cast cast-iron, center of handrail 2-1/2 inches from face of railing. 1. Provide cast-metal brackets with flange tapped for concealed anchorage to threaded hanger bolt. B. Welding Rods and Bare Electrodes: Select according to AWS specifications for metal alloy welded. C. Shop Primers: Provide primers that comply with Section 09 0007 "Painting." D. Nonshrink, Nonmetallic Grout: Factory-packaged, nonstaining, noncorrosive, nongaseous grout complying with ASTM C1107/C1107M. Provide grout specifically recommended by manufacturer for interior and exterior applications. 2.7 FABRICATION A. 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. Shop assemble railings to greatest extent possible to minimize field splicing and assembly. Disassemble units only as necessary for shipping and handling limitations. 1. Clearly mark units for reassembly and coordinated installation. 2. Use connections that maintain structural value of joined pieces. C. Cut, drill, and punch metals cleanly and accurately. 1. Remove burrs and ease edges to a radius of approximately 1/32 inch unless otherwise indicated. 2. Remove sharp or rough areas on exposed surfaces. D. Form work true to line and level with accurate angles and surfaces. E. Cut, reinforce, drill, and tap as indicated to receive finish hardware, screws, and similar items. F. Connections: Fabricate railings with welded or mechanical connections unless otherwise indicated. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 DECORATIVE METAL RAILINGS 05 7300 - 6 G. Welded Connections: Cope components at connections to provide close fit, or use fittings designed for this purpose. Weld all around at connections, including at fittings. 1. Use materials and methods that minimize distortion and develop strength and corrosion resistance of base metals. 2. Obtain fusion without undercut or overlap. 3. Remove flux immediately. 4. At Decorative Metal Stairs: At exposed connections, finish exposed welds to comply with NOMMA's "Voluntary Joint Finish Standards" for Finish #1 welds; ornamental quality with no evidence of a welded joint. 5. At Metal Pan Stairs: At exposed connections, finish exposed welds to comply with NOMMA's "Voluntary Joint Finish Standards" for Finish #2 welds; good appearance, completely sanded joint, some undercutting and pinholes okay. H. Mechanical Connections: Connect members with concealed mechanical fasteners and fittings. 1. Fabricate members and fittings to produce flush, smooth, rigid, hairline joints. 2. Fabricate splice joints for field connection using an epoxy structural adhesive if this is manufacturer's standard splicing method. I. Form changes in direction by radius bends of radius indicated or by inserting prefabricated elbow fittings of radius indicated. J. Bend 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. K. Close exposed ends of hollow railing members with prefabricated cap and end fittings of same metal and finish as railings. L. 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 1/4 inch or less. M. Brackets, Flanges, Fittings, and Anchors: Provide wall brackets, flanges, handrail brackets, miscellaneous fittings, and anchors to interconnect railing members to other Work unless otherwise indicated. 1. At brackets and fittings fastened to gypsum board partitions, provide crush-resistant fillers or other means to transfer loads through wall finishes to structural supports and to prevent bracket or fitting rotation and crushing of substrate. N. Provide inserts and other anchorage devices for connecting railings to concrete or masonry Work. 1. Fabricate anchorage devices capable of withstanding loads imposed by railings. 2. Coordinate anchorage devices with supporting structure. O. For railing posts set in concrete, provide stainless steel sleeves not less than 6 inches long with inside dimensions not less than 1/2 inch greater than outside dimensions of post, with metal plate forming bottom closure. 2.8 GENERAL FINISH REQUIREMENTS A. Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal Products" recommendations for applying and designating finishes. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 DECORATIVE METAL RAILINGS 05 7300 - 7 B. Appearance of Finished Work: Noticeable variations in same piece are unacceptable. 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. C. Provide exposed fasteners with finish matching appearance, including color and texture, of railings. 2.9 STEEL AND IRON FINISHES A. For nongalvanized-steel railings, provide nongalvanized ferrous-metal fittings, brackets, fasteners, and sleeves; however, hot-dip galvanize anchors to be embedded in exterior concrete or masonry. B. Preparation for Shop Priming: Prepare uncoated ferrous-metal surfaces to comply with SSPC- SP 7/NACE No. 4. C. Primer Application: Apply shop primer to prepared surfaces of railings unless otherwise indicated. Comply with requirements in SSPC-PA 1 for shop painting. Primer need not be applied to surfaces to be embedded in concrete or masonry. 1. Shop prime uncoated railings with primers specified in Section 09 0007 "Painting." PART 3 - EXECUTION 3.1 EXAMINATION A. Examine 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, GENERAL A. Perform cutting, drilling, and fitting required for installing railings. 1. Fit exposed connections together to form tight, hairline joints. 2. Install railings level, plumb, square, true to line; without distortion, warp, or rack. 3. Set railings accurately in location, alignment, and elevation; measured from established lines and levels. 4. 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. 5. Set posts plumb within a tolerance of 1/16 inch in 3 feet. 6. 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. B. Control of Corrosion: Prevent galvanic action and other forms of corrosion by insulating metals and other materials from direct contact with incompatible materials. C. Adjust railings before anchoring to ensure matching alignment at abutting joints. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 DECORATIVE METAL RAILINGS 05 7300 - 8 D. 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. Nonwelded Connections: Use mechanical or adhesive joints 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. B. Welded Connections: Use fully welded joints for permanently connecting railing components. Comply with requirements for welded connections in "Fabrication" Article, whether welding is performed in the shop or in the field. 3.4 ANCHORING POSTS A. Use stainless steel pipe sleeves preset and anchored into concrete for installing posts. After posts have been inserted into sleeves, fill annular space between post and sleeve with nonshrink, nonmetallic grout, mixed and placed to comply with anchoring material manufacturer's written instructions. B. Form or core-drill holes not less than 5 inches deep and 3/4 inch larger than OD of post for installing posts in concrete. Clean holes of loose material, insert posts, and fill annular space between post and concrete with nonshrink, nonmetallic grout, mixed and placed to comply with anchoring material manufacturer's written instructions. C. Cover anchorage joint with flange of same metal as post, attached to post with setscrews. D. Anchor posts to metal surfaces with flanges, angle type, or floor type as required by conditions, connected to posts and to metal supporting members as follows: 1. Weld flanges to posts and bolt to metal-supporting surfaces. 3.5 ATTACHING RAILINGS A. Attach handrails to walls with wall brackets. Provide brackets with 1-1/2-inch clearance from inside face of handrail and finished wall surface. 1. Use type of bracket with flange tapped for concealed anchorage to threaded hanger bolt. 2. Locate brackets as indicated or, if not indicated, at spacing required to support structural loads. B. Secure wall brackets to building construction 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. For steel-framed partitions use one of the following: a. Use hanger or lag bolts set into fire-retardant-treated wood backing between studs. Coordinate with stud installation to locate backing members. b. Fasten brackets directly to concealed steel reinforcements using self-tapping screws of size and type required to support structural loads. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 DECORATIVE METAL RAILINGS 05 7300 - 9 3.6 REPAIR A. Touchup Painting: 1. Immediately after erection, clean field welds, bolted connections, and abraded areas of shop paint, and paint exposed areas with the same material used for shop painting to comply with SSPC-PA 1 for touching up shop-painted surfaces. a. Apply by brush or spray to provide a minimum 2.0-mil dry film thickness. 3.7 FIELD QUALITY CONTROL A. Testing Agency: Owner will engage a qualified testing agency to perform tests and inspections and to prepare test reports. Payment for these services will be made by Owner. B. Extent and Testing Methodology: Testing agency will randomly select completed railing assemblies for testing that are representative of different railing designs and conditions in the completed Work. Test railings in accordance with ASTM E894 and ASTM E935 for compliance with performance requirements. C. Remove and replace railings where test results indicate that they do not comply with specified requirements unless they can be repaired in a manner satisfactory to Architect and comply with specified requirements. D. Perform additional testing and inspecting, at Contractor's expense, to determine compliance of replaced or additional work with specified requirements. 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 (THIS PAGE IS BLANK)