Evolution Guide Specification – February 3, 2011
SECTION 07411 - MANUFACTURED ROOF PANELS
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Special Conditions and Division 1 Specifications Sections, apply to this Section.
1.2 SUMMARY
A. This Section includes the following:
1. Formed custom roof panels of type and profile indicated over air/vapor barrier, nailable sub-base underlayment and insulation. Also included are all related flashing, trims and accessories.
1.3 PERFORMANCE REQUIREMENTS
A. General: Provide manufactured roof panel assemblies complying with performance requirements indicatedand capable of withstanding structural movement, thermally induced movement, and exposure to weather without failure or infiltration of water into the building interior.
B. Air Infiltration: Provide manufactured roof panel assemblies with permanent resistance to air leakage through assembly of not more than 0.09 cfm/sq. ft. of fixed roof area when tested according to ASTM E 283 at a static-air-pressure difference of 4.0lbf/sq. ft.
C. Water Penetration: Provide manufactured roof panel assemblies with no water penetration as defined in the test method when tested according to ASTM E 331at a minimum differential pressure of 20 percent of inward acting, wind-load design pressure of not less than 6.24 lb/sq. ft. and not more than 12.0 lb/sq. ft.
D. Wind-Uplift Resistance: Provide roof panel assemblies that meet requirements of UL 580 for Class 90 wind-uplift resistance.
E. Structural Performance: Provide manufactured roof panel composite assemblies which are capable of withstanding design loads indicated under in-service conditions as established by ASCE 7-05 analysis with vertical deflection nogreater than the following when tested in accordance with ASTM E 330:
1. Maximum Deflection: L/175 of the span.
1.4 SUBMITTALS
A. Product Data: Include manufacturer’s product specifications, standard details, certified product test results, and general recommendations, as applicable to materials and finishes for each component and for panel assemblies.
B. Shop Drawings: Show layouts of panels on roof, details of edge conditions, joints, panel profiles, supports, anchorage, trim, flashing, underlayment, closures, snow guards, and special details. Distinguish between factory and field- assembled work.
C. Samples for Verification: Provide sample panels 12 inches long by actual panel width, in the style, color, and texture indicated. Include clips, caps, battens, fasteners, closures, and other exposed panel accessories.
D. Qualification Data: For firms and persons specified in the “Quality Assurance” Article to demonstrate their capabilities and experience. Include manufacturer’s certification of qualifications, lists of completed projects with project names and addresses, names and addresses of project architects and owners, and any other information necessary to verify qualifications.
E. Product Test Reports: Indicate compliance of manufactured roof panel assemblies and materials with performance and other requirements based on comprehensive testing of current products.
F. Mock-Up: Construct a mock-up of the roofing system for establishing appearance. Size of mock-up shall be as shown and specified on the architectural drawings. Mock-up may not become part of the completed construction.
G. Provide material cleaning instructions and recommendation to be included in Operations and Maintenance Manuals.
H. For installed products indicated to comply with certain design loading, include structural analysis data prepared in accordance with ASCE 7-05, signed and sealed by a licensed professional engineer.
1.5 QUALITY ASSURANCE
A. Qualifications of Manufacturer: Use a manufacturer who has been certified to the ISO 9001:2008 standard. Manufacturer must provide a copy of the ISO Certificate as part of the submittal process. Manufacturer must also have a minimum of ten (10) years experience in the manufacture of custom architectural sheet metal systems.
B. Manufacturer’s On-site Representation: Provide a manufacturer’s representative to provide part-time inspection of roofing system installation. Submit construction/installation progress reports and a final inspection report to the Owner’s Authorized Representative and the Architect.
C. Installer Qualifications: The Installer shall be certified by the manufacturer. The installer shall have completed metal roof panel projects similar in material, design, and extent to that indicated for this Project and have a documented record of successful in-service performance.
D. Professional Engineer Qualifications: A professional engineer who is legally licensed to practice in the jurisdiction where the Project is located.
E. Fire-Test-Response Characteristics: Where fire resistance rated roof panel assemblies are indicated, provide materials and construction identical to those of assemblies tested for fire resistance per ASTM E 119 by an independent testing and inspecting agency acceptable to authorities having jurisdiction.
1.6 DELIVERY, STORAGE, AND HANDLING
A. Deliver panels and other components so they will not be damaged or deformed. Package panels for protection against damage during transportation or handling.
B. Handling: Exercise care in unloading, storing, and erecting roof panels to prevent bending, warping, twisting, and surface damage.
C. Stack material on platforms or pallets, covered with tarpaulins or other suitable weather-tight and ventilated covering. Store panels to ensure dryness. Do not store panels on contact with other materials that might cause staining, denting, or other surface damage.
1.7 PROJECT CONDITIONS
A. Field Measurements: Verify location of structural members and openings in substrates by field measurements before fabrication and indicate measurements on Shop Drawings. Coordinate fabrication schedule with construction progress to avoid delaying the work.
1. Established Dimensions: Take accurate field measurements before panels are made without delaying the work, establish dimensions and proceed with fabricating roof panels. Without field measurements product will be fabricated in accordance with dimensions noted on approved shop drawings. Coordinate roof construction to ensure actual locations of structural members and to ensure opening dimensions correspond to established dimensions.
1.8 WARRANTY
A. General Warranty: Special warranties specified in the Article shall not deprive the Owner of other rights the Owner may have under other provisions of the Contract Documents and shall be in addition to, and run concurrent with, other warranties made by the Contractor under requirements of the Contract Document.
B. Special Finish Warranty: Submit a written warranty, signed by finish applicator, covering failure of the factory-applied exterior paint finish on metal roof panels within the specified warranty period and agreeing to repair finish or replace roof panels that show evidence of finish deterioration. Deterioration of finish includes, but is not limited to, color fade, chalking, cracking, peeling, and loss of film integrity.
1. Paint Finish Warranty Period: 20 years from date of Substantial Completion.
2. Special Weather-tight Warranty: Submit a written single-source warranty, executed by the roofing system manufacturer agreeing to repair or replace the metal roof panel assembly that fails to remain weather-tight within the specified warranty period. The 20 year Weather-tight Warranty shall include all flashing, roof panels, and all other metal system components.The hanging/built-in gutters shall be warranted for five years.
PART 2 - PRODUCTS
2.1 METAL PANEL ROOF SYSTEM
A. Product and Manufacturer - Basis of Design:
Overly Manufacturing Co., 574 West Otterman Street, Greensburg, Pa.15601,
TEL (724) 834-7300, FAX (724) 830-2877
1. Profile: Custom EVOLUTION Roof System as indicated.
2. Gutter System: Provide metal gutter system with welded/soldered seams and expansion joints.
3. Movement: Provide for independent movement of all roof components consistent with a thermal range of 120 degrees F and consistent with anticipated movement of building structure.
4. Replacement of Panels: Provide for the non-destructive selection removal and replacement of individual roof components.
5. Panel system shall have continuous extruded internal drainage channel and compression cover cap.
2.2 METALS AND FINISHES
A. Sheets: Aluminum 18 gauge (0.040 inches) 3003-H14 alloy with a two coatPvdf2finish in a standard color as selected by the architect.
- Panel Infill Board, factory applied to the underside of all panels, is required. Material shall be un-faced, pre-formed, rigid, cellular, polyisocyanurate thermal insulation complying with ASTM C 591, Type 2, thermal-resistance values for 1-inch thickness of 6.2 degrees F x h x sq. ft./Btu at 75 degrees F.
B. Internal Drainage Channel and Compression Cover Plate: Overly type “EVOLUTION”; 0.056 inches thick minimum and 0.125 inches nominal thickness, each in a 6063 alloy aluminum T-5 temper.
C. Fasteners: System fasteners shall be concealed and no less than a #12 stainless steel wood screwshall be used to anchor the internal drain channel; length as required for substrate construction.
2.3 UNDERLAYMENT MATERIALS
A. Self-Adhering, Sheet Underlayment:
1. Available Products: Subject to compliance with requirements, products that may be incorporated into the Work include, but are not limited to the following:
a. Self-adhering air and water barrier membrane with a minimum 90 day UV exposure rating.
2.4 MISCELLANEOUS MATERIALS
A. General: Provide materials and accessories required for a complete roof panel assembly and as recommended by panel manufacturer, unless otherwise indicated.
B. Accessories: Unless otherwise specified, provide components required for a complete roof panel assembly including trim, copings, fascia, mullions, sills, corner units, ridge closures, clips, seam covers, battens, flashing, gutters, sealants, gaskets, fillers, closure strips, and similar items. Match materials and finishes of roof panels.
C. Fasteners: Type tested and approved to secure roof panel system in accordance with UL and uplift requirements.
D. Plywood: Refer to Section 06100, Rough Carpentry.
E. Paper Slip Sheet: 5-lb/square red rosin, sized building paper conforming to FS UU-B-790, Type 1, Style 1b.
2.5 FABRICATION
A. General: Fabricate and finish panels and accessories at the factory to greatest extent possible, 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.
PART 3 - EXECUTION
3.1 EXAMINATION
A. Examine substrates and conditions, with Installer present, for compliance with requirements indicated for conditions affecting performance of metal panel roofing.
1. Panel Supports and Anchorage: Examine roof framing to verify that purlins, angles, channels, and other secondary structural panel support members and anchorage have been installed according to written instructions of manufacturer.
2. Do not proceed with roof panel installation until unsatisfactory conditions have been corrected.
3.2 PREPARATION
A. Coordinate metal panel roofing with rain drainage work; flashing; trim; and construction of decks, parapets, walls, and other adjoining work to provide a leak-proof, secure, and non-corrosive installation.
B. Promptly remove protective film, if any, from exposed surfaces of metal panels. Strip with care to avoid damage to finish.
3.3 INSTALLATION
A. General: Comply with panel manufacturer’s written instructions and recommendations for installation, as applicable to project conditions and supporting substrates. Anchor panels and other components of the work securely in place, with provisions for thermal and structural movement.
1. Field cutting exterior panels by torch is not permitted.
2. Install panels with approved fasteners.
3. Install plywood substrate, underlayment, and slip sheet material in accordance with material manufacturer’s instructions and recommendations.
B. Accessories: Install components required for a complete roof panel as assembly including trim, copings, fascia, ridge closures, clips, seam covers, battens, flashings, gutters, sealants, gaskets, fillers, closure strips, and similar items.
C. Installation Tolerances: Shim and align panel units within installed tolerance of 3/8 inch in 40 foot slope and location lines as indicated and within 1/8-inch offset of adjoining faces and of alignment of matching profiles.
3.4 FIELD TESTING
A. Conduct 10 random fastener pull tests in accordance with this section in areas designed by the Owner’s Authorized Representative, and submit test results for the comparison to design requirements.
B. Block gutter drains and fill with water. Let stand for 24 hours. Repair gutter as required and retest until gutters are watertight.
3.5 CLEANING AND PROTECTING
A. Damaged Units: Replace panels and other components of the work that have been damaged or have deteriorated beyond successful repair by finish touchup or similar minor repair procedures.
B. Cleaning: Remove temporary protective coverings and strippable films, if any, as soon as each panel is installed. On completion of panel installation, clean finished surfaces as recommended by panel manufacturer and maintain in a clean condition during construction.
C. Protection: Do not permit unnecessary walking on finished roof. Require all personnel to wear rubber-soled shoes when walking on or installing this roof system.
END OF SECTION 07411
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