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HomeMy WebLinkAbout05-7500-Decorative-Formed-Metal-(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 FORMED METAL 05 7500 - 1 SECTION 05 7500 DECORATIVE FORMED METAL (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. Perforated aluminum intake grilles at recessed base for mechanical units. 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 7100 "Decorative Metal Stairs." 3. Section 05 7300 "Decorative Metal Railings." 1.3 COORDINATION A. Coordinate installation of anchorages for decorative formed metal items. 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. B. Coordinate installation of decorative formed metal with adjacent construction to ensure that wall assemblies, flashings, trim, and joint sealants, are protected against damage from the effects of weather, age, corrosion, and other causes of deterioration. 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.” B. Product Data: For each type of product, including finishing materials. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 DECORATIVE FORMED METAL 05 7500 - 2 C. Sustainable Design Submittals: 1. 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. D. Shop Drawings: Show fabrication and installation details for decorative formed metal. 1. Include plans, elevations, component details, and attachment details. 2. Indicate materials and profiles of each decorative formed metal member, fittings, joinery, finishes, fasteners, anchorages, and accessory items. E. Samples for Verification: For each type of exposed finish required, prepared on 6-inch- square Samples of metal of same thickness and material indicated for the Work. 1.6 INFORMATIONAL SUBMITTALS A. Qualification Data: For Installer and fabricator. 1.7 QUALITY ASSURANCE A. Fabricator Qualifications: A firm experienced in producing decorative formed metal similar to that indicated for this Project and with a record of successful in-service performance as well as sufficient production capacity to produce required units. B. Installer Qualifications: Fabricator of products. C. 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 the following types of decorative formed metal: a. Perforated aluminum intake grilles. 2. Subject to compliance with requirements, approved mockups may become part of the completed Work if undisturbed at time of Substantial Completion. 1.8 DELIVERY, STORAGE, AND HANDLING A. Deliver decorative formed metal products wrapped in protective coverings and strapped together in suitable packs or in heavy-duty cartons. Remove protective coverings before they stain or bond to finished surfaces. B. Store products on elevated platforms in a dry location. 1.9 FIELD CONDITIONS A. Field Measurements: Verify actual locations of walls, columns, beams, and other construction contiguous with decorative formed metal by field measurements before fabrication and indicate measurements on Shop Drawings. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 DECORATIVE FORMED METAL 05 7500 - 3 PART 2 - PRODUCTS 2.1 LEED REQUIREMENTS A. Recycled Content: Provide products with the maximum recycled content possible. Minimum recycled content 20 percent. 2.2 SHEET METAL A. General: Fabricate products from sheet metal without pitting, seam marks, roller marks, stains, discolorations, or other imperfections where exposed to view on finished units. B. Aluminum Sheet: Flat sheet complying with ASTM B 209, alloy and temper recommended by aluminum producer and finisher for type of use and finish indicated, and with strength and durability properties of not less than Alloy 5005-H32. 2.3 MISCELLANEOUS MATERIALS A. Fasteners: Fabricated from same basic metal and alloy as fastened metal unless otherwise indicated. Do not use metals that are incompatible with materials joined. 1. Provide concealed fasteners for interconnecting decorative formed metal items and for attaching them to other work unless exposed fasteners are unavoidable or are the standard fastening method. 2.4 FABRICATION, GENERAL A. Shop Assembly: Preassemble decorative formed metal items in 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. B. Coordinate dimensions and attachment methods of decorative formed metal items with those of adjoining construction to produce integrated assemblies with closely fitting joints and with edges and surfaces aligned unless otherwise indicated. C. Form metal to profiles indicated, in maximum lengths to minimize joints. Produce flat, flush surfaces without cracking or grain separation at bends. Fold back exposed edges of unsupported sheet metal to form a 1/2-inch- wide hem on the concealed side, or ease edges to a radius of approximately 1/32 inch and support with concealed stiffeners. D. Increase metal thickness or reinforce with concealed stiffeners, backing materials, or both, as needed to provide surface flatness equivalent to stretcher-leveled standard of flatness and sufficient strength for indicated use. 1. Support joints with concealed stiffeners as needed to hold exposed faces of adjoining sheets in flush alignment. E. Build in straps, plates, and brackets as needed to support and anchor fabricated items to adjoining construction. Reinforce decorative formed metal items as needed to attach and support other construction. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 DECORATIVE FORMED METAL 05 7500 - 4 F. Provide support framing, mounting and attachment clips, splice sleeves, fasteners, and accessories needed to install decorative formed metal items. 2.5 PERFORATED ALUMINUM INTAKE GRILLES A. Basis-of-Design Product: Subject to compliance with requirements, provide Round Hole Perforated Metal by McNICHOLS Company or a comparable product by one of the following or equal: 1. Fry Reglet Corporation. 2. Pittcon Industries. B. Form perforated aluminum intake grilles from metal of type and thickness indicated below. Fabricate to fit tightly to adjoining construction. 1. Perforated Metal: Aluminum sheet, ASTM B209, 0.050 inch thick, with 3/16-inch holes 1/4 inch o.c. in staggered rows; 51 pecent open. a. Finish: Clear anodic. C. Conceal fasteners where possible; otherwise, locate where they are as inconspicuous as possible. Size fasteners to support perforated aluminum intake grilles, with fasteners spaced to prevent buckling or waviness in finished surfaces. D. Drill and tap holes needed for securing perforated aluminum intake grilles to other surfaces. E. Miter or cope trim members at corners and reinforce with bent metal splice plates to form tight joints. 2.6 GENERAL FINISH REQUIREMENTS A. Complete mechanical finishes of flat sheet metal surfaces before fabrication where possible. After fabrication, finish all joints, bends, abrasions, and other surface blemishes to match sheet finish. B. Protect mechanical finishes on exposed surfaces from damage by applying a strippable, temporary protective covering before shipping. 2.7 ALUMINUM FINISHES A. Clear Anodic Finish: AAMA 611, AA-M12C22A41, Class I, 0.018 mm or thicker. PART 3 - EXECUTION 3.1 EXAMINATION A. Examine substrates, areas, and conditions, with Installer present, for compliance with requirements for installation tolerances and other conditions affecting performance of decorative formed metal. B. Proceed with installation only after unsatisfactory conditions have been corrected. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 DECORATIVE FORMED METAL 05 7500 - 5 3.2 INSTALLATION A. Locate and place decorative formed metal items level and plumb and in alignment with adjacent construction. Perform cutting, drilling, and fitting required to install decorative formed metal. 1. Do not cut or abrade finishes that cannot be completely restored in the field. Return items with such finishes to the shop for required alterations, followed by complete refinishing, or provide new units as required. 3.3 ADJUSTING AND CLEANING A. Unless otherwise indicated, clean metals by washing thoroughly with water and soap, rinsing with clean water, and drying with soft cloths. 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. 3.4 PROTECTION A. Protect finishes of decorative formed metal items from damage during construction period. Remove temporary protective coverings at time of Substantial Completion. END OF SECTION (THIS PAGE IS BLANK)