SECTION 074213.19 - INSULATED 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: 1. Foamed-insulation-core metal wall panels. 2. Laminated-fire-resistant metal wall panels. 3. Laminated-insulation-core metal wall panels. 1.3 PREINSTALLATION MEETINGS A. Pre-bid Conference: Conduct conference at Kodiak AST Post & Kodiak Airport @ 2921 # A Mill Bay Road, Kodiak Alaska 99615. Thursday January 23, 2014 at 1:30 p.m. 1.4 ACTION SUBMITTALS A. Product Data: For each type of product. B. LEED Submittals: 1. EA Energy and Atmosphere a. EA Credit 1: Optimize Energy Performance. 1) Demonstrating percentage of performance improvement that meets or surpasses ASHRAE/IESNA Standard 90.1. 2. EA Credit 2: Minimum Energy Performance 3. MR Material and Resource a. MR Credit 1.1 & 1.2: Building Reuse 1) Maintain Existing Walls, Floors & Roof 2) Maintain Interior Non-Structural Elements b. MR Credit 3: Materials Reuse c. MR Credit 4: Recycled Content INSULATED METAL WALL PANELS 074213.19-1
1) Percentage weight of post-consumer and pre-consumer recycled content use materials with recycled content. 2) Recycled content value of product assembly by weight. 3) Indicate total value (cost) of each product used. 4. MR Credit 6: Rapidly Renewable Materials 5. IEQ Indoor Environmental Quality a. IEQ Credit 4.1: Low-Emitting Materials Adhesives and Sealants 1) Product data on adhesives and sealants to comply with standards for South Coast Air Quality Management District rule #1168. 2) Product data for paint and coatings having no VOC's 6. ID- Innovation in Design: C. Shop Drawings: a. ID Credits 1.1 to 1.4. 1. Include elevations, fastening patterns, and sections of each condition. 2. Include material type, metal thickness, paint finish, and manufacturer's installation suggestions. D. Panel Samples: Submit 1 ft - 0 in (30.48 cm) by full width sample panel indicating the metal, texture, and finish proposed. 1.5 INFORMATIONAL SUBMITTALS A. Product test reports. B. Warranties: Samples of special warranties. 1.6 QUALITY ASSURANCE A. Installer Qualifications: Installed by a contractor with a minimum of five (5) years experience with this type of construction, and documentation indicating successful completion of contracts for projects of similar size, scope and materials. B. Manufacturer Qualifications: Manufacturer s production and quality processes are inspected on a quarterly basis by third party quality control auditing programs through Factory Mutual, Underwriter Laboratories, and Intertek Testing Services. Quality control manuals for each accreditation agency are in place detailing the production and quality processes and methods used in the manufacturing of product. 1.7 DELIVERY, STORAGE, AND HANDLING INSULATED METAL WALL PANELS 074213.19-2
A. Protect products of metal panel system during shipping, handling, and storage to prevent staining, denting, deterioration of components, or other damage. B. Deliver, unload, store, and erect metal panels and accessory items in a manner to prevent bending, warping, twisting, and surface damage. C. Store panels in accordance with manufacturer's written instructions. D. Shield foam-insulated metal wall panels from direct sunlight until installation. E. Store products off the ground, with panels sloped for drainage and covered to protect factory finishes from damage. Stack bundles no more than two high. 1.8 WARRANTY A. Warranty: Manufacturer's written limited warranty providing panels to be free from defects in materials and workmanship, excluding coil coatings (paint finishes) that are covered under separate warranty. 1. Warranty Period: Two years from date of Substantial Completion. B. 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. Finish Warranty Period: a. 40 year limited warranty on the exterior paint finish for adhesion to the metal. substrate b. 30 year limited warranty on the exterior paint finish for chalk and fade. PART 2 - PRODUCTS 2.1 PERFORMANCE REQUIREMENTS A. Recycled Content of Steel Products: Postconsumer recycled content plus one-half of preconsumer recycled content not less than 25 percent. B. Structural Performance: Provide metal panel systems capable of withstanding the effects of the following loads, based on testing according to ASTM E 72: 1. Wind Loads: Verified using a 20 psf simulated wind load. 2. Deflection Limits: For wind loads, no greater than 1/180 for exterior wall panels and 1/120 for partition and liner walls. 3. Large Missile Impact Test: Conducted in accordance with ASTM E 1886 and ASTM E 1996. INSULATED METAL WALL PANELS 074213.19-3
C. Air Infiltration: Air leakage of not more than 0.06 cfm/sq. ft. (0.3 L/s per sq. m). Air infiltration shall not exceed 0.01 cfm/sq. ft (0.05 L/s per sq. m) at 6.24 psf (.30 kpa), and 0.04 cfm/ sq. ft (0.2 L/s per sq. m) of wall area] when tested according to ASTM E 283 at a static pressure of 12 psf (.576 kpa). D. Static Water Penetration: There shall be no uncontrolled water penetration through the panel joints at a static pressure of 20 psf (.96 kpa) when tested in accordance with ASTM E 331. E. Dynamic Water Penetration: There shall be no uncontrolled water penetration through the panel joints when subjected to a 95 mph slip stream air flow and application of water for a 15 minute period in accordance with AAMA501.1. F. Condensation Resistance Factor: The minimum condensation resistance factor of the panel shall be 92 when tested in general accordance with AAMA 1503.1. G. Thermal Performance: Panels shall provide a K-factor of 0.14 btu/sf/hr/deg F at a 75 deg F (mean temperature when tested in accordance with ASTM C 518. H. Fire Test Response Characteristics: 1. Surface Burning Characteristics: The insulated core shall have been tested in accordance with ASTM E 84 for surface burning characteristics. The core shall have a maximum flame spread of 25 and a smoke developed rating of 450. 2. Factory Mutual Research Corporation (FMRC) Standard 4880: Panel assembly shall not support a self-propagating fire which reaches any limits of the 50 foot high corner test structure as evidenced by flaming or material damage of the ceiling of the assembly. 3. Fire Propagation: The fire assembly shall meet the requirements of the standard for NFPA 285 and NFPA 286. Heat potential shall be determined using NFPA 259 Test Method for Potential Heat of Building Materials. 4. Canadian Certifications Flame spread: Evaluation of fire spread over the exterior surface shall be conducted and in compliance with CAN/ULC S138. 5. IBC Chapter 26: Panel performance under the above test methods, shall meet the requirements of IBC, Chapter on foam plastics. 6. Laminated Fire-Resistive Metal Panel, Fire Resistance Data: a. Finished panel in a 4 in thickness shall meet the requirements of a one (1) hour fire resistance rating for non- load bearing wall in accordance with UL 263 (per UL design U050 for US and design W021 for Canada), ASTM E119 and CAN/ULC S101 (per Intertek design MS/WA 60-1). b. 1 and 2 hour fire rated wall panels shall meet the requirements of Fire Door and Window Assemblies as listed by UL in accordance with UL 9, CAN4-S106 and UBC Standard 7-4 ( per UL designs SP-2-001 and WA-2-001.) 2.2 FOAMED-INSULATION-CORE METAL WALL PANELS A. General: Provide factory-formed and -assembled metal wall panels fabricated from two rollformed metal facing sheets chemically bonded to insulation core foamed in place during fabrication, and with joints between panels designed to form weather tight seals. Include accessories required for weather tight installation. INSULATED METAL WALL PANELS 074213.19-4
1. Panel Performance: Kodiak AWT Hangar, Kodiak Airport Alaska, 99615 a. Freeze/Heat Cycling: No delamination, surface blistering, or permanent bowing when subjected to cyclic temperature extremes of -20 deg F to +180 deg F for 21 eight hour cycles. b. Humid Aging: Volume increase not greater than 6.0 percent and no delamination or metal corrosion when tested for seven days at 140 deg F and 100 percent relative humidity according to ASTM D 2126. c. Fatigue: No evidence of delamination, core cracking, or permanent bowing when tested to a 20-lbf/sq. ft. positive and negative wind load and with deflection of L/180 for 2 million cycles. d. Autoclave: No delamination when exposed to 2-psi pressure at a temperature of 212 deg F for 2-1/2 hours. 2. Insulation Core: Polyurethane foam using a non-cfc blowing agent, with maximum flame-spread and smoke-developed indexes of 25 and 450, respectively. a. Closed-Cell Content: 92 percent when tested according to ASTM D 6226. b. Density: 2.0 to 2.6 lb/cu. ft. when tested according to ASTM D 1622. c. Compressive Strength: Minimum 20 psi when tested according to ASTM D 1621. d. Shear Strength: 26 psi when tested according to ASTM C 273/C 273M. B. Concealed-Fastener, Foamed-Insulation-Core Metal Wall Panels CF42: Formed with tongueand-groove panel edges; designed for sequential installation by interlocking panel edges and mechanically attaching panels to supports using concealed clips or fasteners. 1. Basis-of-Design Product: Subject to compliance with requirements, provide Metl-Span LLC product named or comparable product by one of the following: a. CENTRIA Architectural Systems. b. Firestone Building Products. c. King Span LLC 2. Profiled Wall Panels: Metl-Span CF concealed fastener wall panel: a. CF-42 Wall Panel, 42 in module width, with Mesa profiled face with a Light Mesa profiled liner. 1) Thickness: 4 in. 3. Thermal-Resistance Value (R-Value): R-32 according to ASTM C 1363. 4. Materials: a. Exterior Face: G-90 galvanized steel conforming to ASTM A 653 and/or prefinished AZ50 aluminum-zinc coated steel conforming to ASTM A 792, minimum grade 33 with stucco embossed texture. 1) Thickness: 24 Ga. INSULATED METAL WALL PANELS 074213.19-5
b. Interior Liner: G-90 galvanized steel conforming to ASTM A 653 and/or AZ50 aluminum-zinc coated steel conforming to ASTM A 792, minimum grade 33, with stucco embossed texture. 1) Thickness: 26 Ga. c. Foam Core: Continuously foamed-in-place, zero ODP and zero VOC closed cell polyurethane. d. Flashing and Trim: 5. Finishes: 1) Provide complete insulated metal wall panel assembly incorporating trim and miscellaneous flashings. Provide required fasteners, clips, closures, tapes, and sealants. 2) Flashing and trim shall be brake-formed sheet metal in the same thickness and finish to match panels. a. Exterior face sheet: 1) Base Primer: Nominal 0.2 mil. 2) Finish Coat: Nominal 0.7 mil full strength 70 percent PVDF Fluoropolymer coating in manufacturer's standard colors. b. Interior Sheet: 6. Side Connections: 1) Primer: Nominal 0.2 mil primer. 2) Finish Coat: Nominal 0.7 mil polyester coating in USDA compliant Igloo White. a. CF-42 wall panel shall have offset double tongue and groove joinery with an extended metal shelf allowing fasteners to penetrate both metal faces with clips concealed in the side joint. 7. Sealants: a. All sealants shall be field applied to ensure vapor and water tightness. 2.3 FABRICATION A. General: 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. INSULATED METAL WALL PANELS 074213.19-6
C. Fabricate metal panel joints with factory-installed captive gaskets or separator strips that provide a weather tight seal and prevent metal-to-metal contact, and that minimize noise from movements. D. 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. 2.4 FINISHES A. Panels and Accessories: 1. Two-Coat Fluoropolymer: Fluoropolymer finish containing not less than 70 percent PVDF resin by weight in color coat. Prepare, pretreat, and apply coating to exposed metal surfaces to comply with coating and resin manufacturers' written instructions. PART 3 - EXECUTION 3.1 EXAMINATION A. Examine all structural steel before beginning installation to insure that all supporting members are straight, level, plumb and satisfactory for panel installation. B. Intermediate framing member (secondary structural supports) alignment tolerances required, as specified below: 1. 0 to ¼ inch outward of the actual wall framing plane for members at 10 ft or greater spacing. C. Do not begin installation until unsatisfactory conditions are corrected. D. Beginning of installation shall signify the structure and adjacent conditions as being proper and acceptable. 3.2 PREPARATION A. Miscellaneous Supports: Install sub-framing, furring, and other miscellaneous panel support members and anchorages according to ASTM C 754 and metal panel manufacturer's written recommendations. 3.3 INSULATED METAL WALL PANEL INSTALLATION A. General: Apply continuous ribbon of sealant to panel joint on concealed side of insulated metal wall panels as vapor seal; apply sealant to panel joint on exposed side of panels for weather seal. INSULATED METAL WALL PANELS 074213.19-7
1. Fasten foamed-insulation-core metal wall panels to supports with fasteners at each lapped joint at location and spacing and with fasteners recommended by manufacturer. 2. Apply panels and associated items true to line for neat and weather tight enclosure. Avoid "panel creep" or application not true to line. 3. Provide metal-backed washers under heads of exposed fasteners on weather side of insulated metal wall panels. 4. 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. 5. Provide sealant tape at lapped joints of insulated metal wall panels and between panels and protruding equipment, vents, and accessories. 6. Apply a continuous ribbon of sealant tape to panel side laps and elsewhere as needed to make panels weather tight. 7. Apply snap-on battens to exposed-fastener, insulated-core metal wall panel seams to conceal fasteners. B. Foamed-Insulation-Core Metal Wall Panels: Fasten metal wall panels to supports with concealed clips at each joint at location and spacing and with fasteners recommended by manufacturer. Fully engage tongue and groove of adjacent panels. 1. Install clips to supports with self-tapping fasteners. C. Accessory Installation: Install accessories with positive anchorage to building and weather tight mounting, and provide for thermal expansion. Coordinate installation with flashings and other components. D. 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. Install work with laps, joints, and seams that are permanently watertight. 3.4 FIELD QUALITY CONTROL A. Panel installer shall inspect and approve each completed wall area and shall be responsible for protection of completed work from damage by other trades. 3.5 CLEANING A. Remove temporary protective coverings and strippable films before exposure to sunlight. B. Wipe finished surfaces clean of any filings caused by drilling or cutting to prevent rust staining. 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 074213.19 INSULATED METAL WALL PANELS 074213.19-8