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HomeMy WebLinkAbout07-4213-Formed-Metal-Wall-Panels_Rev_1Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 FORMED METAL WALL PANELS 07 4213.13 - 1 SECTION 07 4213.13 FORMED METAL WALL PANELS 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 exposed-fastener, lap-seam metal wall panels. 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 07 2715 “Non-Bituminous Self-Adhering Sheet Air Barriers” for air barriers applied over sheathing. 3. Section 07 4213.23 "Metal Composite Material Wall Panels" for metal-faced composite wall panels. 4. Section 07 4246 “High-Performance Cementitious Wall Panels” for glass-fiber-reinforced concrete wall panel system. 5. Section 07 6200 “Sheet Metal Flashing And Trim” for flashings and other sheet metal work not part of the formed metal wall panel system. 1.3 PREINSTALLATION MEETINGS A. Preinstallation Conference: Conduct conference at Project site. 1. Meet with Owner, Architect, Owner's insurer if applicable, metal panel Installer, metal panel manufacturer's representative, structural-support Installer, and installers whose work interfaces with or affects metal panels, including installers of doors, windows, and louvers. 2. Review and finalize construction schedule and verify availability of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays. 3. Review methods and procedures related to metal panel installation, including manufacturer's written instructions. 4. Examine support conditions for compliance with requirements, including alignment between and attachment to structural members. 5. Review flashings, special siding details, wall penetrations, openings, and condition of other construction that affect metal panels. 6. Review governing regulations and requirements for insurance, certificates, and tests and inspections if applicable. 7. Review temporary protection requirements for metal panel assembly during and after installation. 8. Review of procedures for repair of metal panels damaged after installation. 9. Document proceedings, including corrective measures and actions required, and furnish copy of record to each participant. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 FORMED METAL WALL PANELS 07 4213.13 - 2 1.4 ACTION SUBMITTALS A. Make Submittals in accordance with Section 01 3300 “Submittal Procedures.” B. Product Data: For each type of product. 1. Include construction details, material descriptions, dimensions of individual components and profiles, and finishes for each type of panel and accessory. 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 EN 15804 or ISO 21930. b. EPD shall have at least Cradle to Gate 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. D. Shop Drawings: 1. Include fabrication and installation layouts of metal panels; details of edge conditions, joints, panel profiles, corners, anchorages, attachment system, trim, flashings, closures, and accessories; and special details. 2. Accessories: Include details of the flashing, trim, and anchorage systems, at a scale of not less than 1-1/2 inches per 12 inches. E. Samples for Verification: For each type of exposed finish, prepared on Samples of size indicated below: 1. Metal Panels: 12 inches long by actual panel width. Include fasteners, closures, and other metal panel accessories. 1.5 INFORMATIONAL SUBMITTALS A. Qualification Data: For Installer. B. Product Test Reports: For each product, for tests performed by a qualified testing agency. C. Sample Warranties: For special warranties. 1.6 CLOSEOUT SUBMITTALS A. Maintenance Data: For metal panels to include in maintenance manuals. 1.7 QUALITY ASSURANCE A. Installer Qualifications: An entity that employs installers and supervisors who are trained and approved by manufacturer. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 FORMED METAL WALL PANELS 07 4213.13 - 3 B. Mockups: Build mockups to verify selections made under Sample submittals and to demonstrate aesthetic effects and set quality standards for fabrication and installation. 1. Build mockup of typical metal panel assembly as shown on Drawings, including supports, attachments, and accessories. 2. Approval of mockups does not constitute approval of deviations from the Contract Documents contained in mockups unless Architect specifically approves such deviations in writing. 3. 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 components, metal panels, and other manufactured items so as not to be damaged or deformed. Package metal panels for protection during transportation and handling. B. Unload, store, and erect metal panels in a manner to prevent bending, warping, twisting, and surface damage. C. Stack metal panels horizontally on platforms or pallets, covered with suitable weathertight and ventilated covering. Store metal panels to ensure dryness, with positive slope for drainage of water. Do not store metal panels in contact with other materials that might cause staining, denting, or other surface damage. D. Retain strippable protective covering on metal panels during installation. 1.9 FIELD CONDITIONS A. Weather Limitations: Proceed with installation only when existing and forecasted weather conditions permit assembly of metal panels to be performed according to manufacturers' written instructions and warranty requirements. 1.10 COORDINATION A. Coordinate metal panel installation with rain drainage work, flashing, trim, construction of soffits, and other adjoining work to provide a leakproof, secure, and noncorrosive installation. 1.11 WARRANTY A. Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or replace components of metal panel systems that fail in materials or workmanship within specified warranty period. 1. Failures include, but are not limited to, the following: a. Structural failures including rupturing, cracking, or puncturing. b. Deterioration of metals and other materials beyond normal weathering. 2. Warranty Period: Two years from date of Substantial Completion. B. Special Warranty on Panel Finishes: Manufacturer's standard form in which manufacturer agrees to repair finish or replace metal panels that show evidence of deterioration of factory- applied finishes within specified warranty period. 1. Exposed Panel Finish: Deterioration includes, but is not limited to, the following: Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 FORMED METAL WALL PANELS 07 4213.13 - 4 a. Color fading more than 5 Delta E units when tested according to ASTM D2244. b. Chalking in excess of a No. 8 rating when tested according to ASTM D4214. c. Cracking, checking, peeling, or failure of paint to adhere to bare metal. 2. Finish Warranty Period: 20 years from date of Substantial Completion. 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. 2.2 PERFORMANCE REQUIREMENTS A. Structural Performance: Provide metal panel systems capable of withstanding the effects of the following loads, based on testing according to ASTM E1592: 1. Wind Loads: As indicated on Drawings. 2. Other Design Loads: As indicated on Drawings. 3. Deflection Limits: For wind loads, no greater than 1/180 of the span. B. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes by preventing buckling, opening of joints, overstressing of components, failure of joint sealants, failure of connections, and other detrimental effects. Base calculations on surface temperatures of materials due to both solar heat gain and nighttime-sky heat loss. 1. Temperature Change (Range): 120 deg F, ambient; 180 deg F, material surfaces. 2.3 EXPOSED-FASTENER, LAP-SEAM METAL WALL PANELS A. Provide factory-formed metal panels designed to be field assembled by lapping side edges of adjacent panels and mechanically attaching panels to supports using exposed fasteners in side laps. Include accessories required for weathertight installation. B. Tapered-Rib-Profile, Exposed-Fastener Metal Wall Panels: Formed with raised, trapezoidal major ribs and a flat pan between major ribs. 1. Basis-of-Design Product: Subject to compliance with requirements, provide 7.2 Panels by BMCI or a comparable product by one of the following or equal: a. ATAS International, Inc. b. CENTRIA Architectural System c. Morin; a Kingspan Group company. 2. Metallic-Coated Steel Sheet: Aluminum-zinc alloy-coated steel sheet complying with ASTM A792/A792M, Class AZ50 coating designation; structural quality. Prepainted by the coil-coating process to comply with ASTM A755/A755M. a. Nominal Thickness: 0.028 inch (nominal 24-gage). b. Exterior Finish: Three-coat fluoropolymer. c. Color: As selected by Architect from manufacturer's full range. 3. Major-Rib Spacing: 7.2 inches o.c. 4. Panel Coverage: 36 inches. 5. Panel Height: 1.5 inches. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 FORMED METAL WALL PANELS 07 4213.13 - 5 2.4 MISCELLANEOUS MATERIALS A. Miscellaneous Metal Subframing and Furring: ASTM C645, cold-formed, metallic-coated steel sheet, ASTM A653/A653M, G90 coating designation or ASTM A792/A792M, Class AZ50 aluminum-zinc-alloy coating designation unless otherwise indicated. Provide manufacturer's standard sections as required for support and alignment of metal panel system. B. Panel Accessories: Provide components required for a complete, weathertight panel system including trim, copings, fasciae, mullions, sills, corner units, clips, flashings, sealants, gaskets, fillers, closure strips, and similar items. Match material and finish of metal panels unless otherwise indicated. 1. Closures: Provide closures at eaves and rakes, fabricated of same metal as metal panels. 2. Backing Plates: Provide metal backing plates at panel end splices, fabricated from material recommended by manufacturer. 3. Closure Strips: Closed-cell, expanded, cellular, rubber or crosslinked, polyolefin-foam or closed-cell laminated polyethylene; minimum 1-inch- thick, flexible closure strips; cut or premolded to match metal panel profile. Provide closure strips where indicated or necessary to ensure weathertight construction. C. Flashing and Trim: Provide flashing and trim formed from same material as metal panels as required to seal against weather and to provide finished appearance. Locations include, but are not limited to, bases, drips, sills, jambs, corners, endwalls, framed openings, rakes, fasciae, parapet caps, soffits, reveals, and fillers. Finish flashing and trim with same finish system as adjacent metal panels. D. Panel Fasteners: Self-tapping screws designed to withstand design loads. Provide exposed fasteners with heads matching color of metal panels by means of plastic caps or factory-applied coating. Provide EPDM or PVC sealing washers for exposed fasteners. 2.5 FABRICATION A. Fabricate and finish metal panels and accessories at the factory, by manufacturer's standard procedures and processes, as necessary to fulfill indicated performance requirements demonstrated by laboratory testing. Comply with indicated profiles and with dimensional and structural requirements. B. Provide panel profile, including major ribs and intermediate stiffening ribs, if any, for full length of panel. C. Sheet Metal Flashing and Trim: Fabricate flashing and trim to comply with manufacturer's recommendations and recommendations in SMACNA's "Architectural Sheet Metal Manual" that apply to design, dimensions, metal, and other characteristics of item indicated. 1. Form exposed sheet metal accessories that are without excessive oil canning, buckling, and tool marks and that are true to line and levels indicated, with exposed edges folded back to form hems. 2. Seams for Aluminum: Fabricate nonmoving seams with flat-lock seams. Form seams and seal with epoxy seam sealer. Rivet joints for additional strength. 3. Seams for Other Than Aluminum: Fabricate nonmoving seams in accessories with flat- lock seams. Tin edges to be seamed, form seams, and solder. 4. Sealed Joints: Form nonexpansion, but movable, joints in metal to accommodate sealant and to comply with SMACNA standards. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 FORMED METAL WALL PANELS 07 4213.13 - 6 5. Conceal fasteners and expansion provisions where possible. Exposed fasteners are not allowed on faces of accessories exposed to view. 6. Fabricate cleats and attachment devices from same material as accessory being anchored or from compatible, noncorrosive metal recommended in writing by metal panel manufacturer. a. Size: As recommended by SMACNA's "Architectural Sheet Metal Manual" or metal wall panel manufacturer for application but not less than thickness of metal being secured. 2.6 FINISHES A. Protect mechanical and painted finishes on exposed surfaces from damage by applying a strippable, temporary protective covering before shipping. B. Appearance of Finished Work: Variations in appearance of abutting or adjacent pieces are acceptable if they are within one-half of the range of approved Samples. Noticeable variations in same piece are not acceptable. 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. Steel Panels and Accessories: 1. Three-Coat Fluoropolymer: AAMA 621. Fluoropolymer finish containing not less than 70 percent polyvinylidene fluoride (PVDF) resin by weight in both color coat and clear topcoat. Prepare, pretreat, and apply coating to exposed metal surfaces to comply with coating and resin manufacturers' written instructions[ for seacoast and severe environments. 2. Concealed Finish: Apply pretreatment and manufacturer's standard white or light-colored acrylic or polyester backer finish consisting of prime coat and wash coat with a minimum total dry film thickness of 0.5 mil. PART 3 - EXECUTION 3.1 EXAMINATION A. Examine substrates, areas, and conditions, with Installer present, for compliance with requirements for installation tolerances, metal panel supports, and other conditions affecting performance of the Work. 1. Examine wall sheathing to verify that sheathing joints are supported by framing or blocking and that installation is within flatness tolerances required by metal wall panel manufacturer. a. Verify that air- or water-resistive barriers have been installed over sheathing or backing substrate to prevent air infiltration or water penetration. B. Examine roughing-in for components and systems penetrating metal panels to verify actual locations of penetrations relative to seam locations of metal panels before installation. C. 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 FORMED METAL WALL PANELS 07 4213.13 - 7 3.2 PREPARATION A. Miscellaneous Supports: Install subframing, furring, and other miscellaneous panel support members and anchorages according to ASTM C754 and metal panel manufacturer's written recommendations. 3.3 INSTALLATION A. Install metal panels according to manufacturer's written instructions in orientation, sizes, and locations indicated. Install panels perpendicular to supports unless otherwise indicated. Anchor metal panels and other components of the Work securely in place, with provisions for thermal and structural movement. 1. Shim or otherwise plumb substrates receiving metal panels. 2. Flash and seal metal panels at perimeter of all openings. Fasten with self-tapping screws. Do not begin installation until air- or water-resistive barriers and flashings that will be concealed by metal panels are installed. 3. Install screw fasteners in predrilled holes. 4. Locate and space fastenings in uniform vertical and horizontal alignment. 5. Install flashing and trim as metal panel work proceeds. 6. Locate panel splices over, but not attached to, structural supports. Stagger panel splices and end laps to avoid a four-panel lap splice condition. 7. Align bottoms of metal panels and fasten with blind rivets, bolts, or self-tapping screws. Fasten flashings and trim around openings and similar elements with self-tapping screws. 8. Provide weathertight escutcheons for pipe- and conduit-penetrating panels. B. Fasteners: Use stainless steel fasteners for surfaces exposed to the exterior; use galvanized- steel fasteners for surfaces exposed to the interior. C. Metal Protection: Where dissimilar metals contact each other or corrosive substrates, protect against galvanic action as recommended in writing by metal panel manufacturer. D. Lap-Seam Metal Panels: Fasten metal panels to supports with fasteners at each lapped joint at location and spacing recommended by manufacturer. 1. Lap ribbed or fluted sheets one full rib. Apply panels and associated items true to line for neat and weathertight enclosure. 2. Provide metal-backed washers under heads of exposed fasteners bearing on weather side of metal panels. 3. Locate and space exposed fasteners in uniform vertical and horizontal alignment. Use proper tools to obtain controlled uniform compression for positive seal without rupture of washer. 4. Install screw fasteners with power tools having controlled torque adjusted to compress washer tightly without damage to washer, screw threads, or panels. Install screws in predrilled holes. 5. Flash and seal panels with weather closures at perimeter of all openings. E. Accessory Installation: Install accessories with positive anchorage to building and weathertight mounting, and provide for thermal expansion. Coordinate installation with flashings and other components. 1. Install components required for a complete metal panel system including trim, copings, corners, seam covers, flashings, sealants, gaskets, fillers, closure strips, and similar items. Provide types indicated by metal wall panel manufacturer; or, if not indicated, provide types recommended by metal panel manufacturer. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 FORMED METAL WALL PANELS 07 4213.13 - 8 F. Flashing and Trim: Comply with performance requirements, manufacturer's written installation instructions, and SMACNA's "Architectural Sheet Metal Manual." Provide concealed fasteners where possible, and set units true to line and level as indicated. Install work with laps, joints, and seams that are permanently watertight. 1. Install exposed flashing and trim that is without buckling and tool marks, and that is true to line and levels indicated, with exposed edges folded back to form hems. Install sheet metal flashing and trim to fit substrates and achieve waterproof performance. 2. Expansion Provisions: Provide for thermal expansion of exposed flashing and trim. Space movement joints at a maximum of 10 feet with no joints allowed within 24 inches of corner or intersection. Where lapped expansion provisions cannot be used or would not be sufficiently waterproof, form expansion joints of intermeshing hooked flanges, not less than 1 inch deep, filled with mastic sealant (concealed within joints). 3.4 CLEANING AND PROTECTION A. Remove temporary protective coverings and strippable films, if any, as metal panels are installed, unless otherwise indicated in manufacturer's written installation instructions. On completion of metal panel installation, clean finished surfaces as recommended by metal panel manufacturer. Maintain in a clean condition during construction. B. After metal panel installation, clear weep holes and drainage channels of obstructions, dirt, and sealant. C. Replace metal panels that have been damaged or have deteriorated beyond successful repair by finish touchup or similar minor repair procedures. END OF SECTION