Table of Contents(Page DL-13)

Double-Lok® SPECIFICATIONS

6. Thermal Loads
a. Roof panels shall be free to move in response to the expansion and contraction forces resulting from a total temperature range of___degrees F during the life of the structure. [#Choose temperature differential based on Max. and Min. for specific area lAW MBMA Climatological Data]

# Specifier: Select applicable building code for paragraph A.1 Select Temperature differential for paragraph A.6.

B. Framing Members Supporting the SSSMR System

1. Any additions/revisions to framing members supporting the SSSMR system to accommodate the manufacturer/fabricator’s design shall be submitted for review and approval. New or revised framing members and their connections shall be designed in accordance with [\AISC\] [\-AISI-\] [\SJI\] design specifications. Maximum deflection under applied live load, snow, or wind load shall not exceed [# choose one: L/180, L/240] of the span length.

1.05 SUBMITTALS

A. Shop drawings:

1. Submit complete shop drawings and erection details, approved by the metal roofing manufacturer, to the architect (owner) for review. Do not proceed with manufacture of roofing materials prior to review of shop drawings and field verification of all dimensions. Do not use drawings prepared by the architect (owner) for shop or erection drawings.
2. Shop drawings show methods of erection, elevations and plans of roof and wall panels, sections and details, anticipated loads, flashings, roof curbs, vents, sealants, interfaces with all materials not supplied and proposed identification of component parts and their finishes.

B. Performance Tests:

1. Submit certified test results by a recognized testing laboratory or manufacturer’s lab (witnessed by a professional engineer) in accordance with specified test methods for each panel system.

C. Calculations:

1. Submit engineering calculations defining cladding loads for all roof areas based on specified building codes, allowable clip loads and required number of fasteners to secure the panel clips to the designated substructure.
2. Compute uplift loads on clip fasteners with full recognition of prying forces and eccentric clip loading.
3. Calculate holding strength of fasteners in accordance with submitted test data provided by Fastener Manufacturer based on length of embedment and properties of materials.

 4. Submit drainage calculations for valley, gutter, and downspout designs for a rainfall intensity (inches per hour) of [# choose one: 5 year or 25 year recurrence] for a 5 minute duration. (See MBMA Low Rise Building Systems Design Manual Section A22 for Wind, Snow, Seismic, and Rain Data by County)
5. Submit thermal calculations and details of floating clip, flashing attachments, and accessories certifying the free movement in response to the expansion/contraction forces resulting from a total temperature differential of 110 degrees F

D. Samples:

1. Submit samples and color chips for all proposed finishes.
a. Submit one 8 inch long sample of panel, including clips.
b. Submit two 3 inch x 5 inch color chip samples in color selected by the architect (owner).

E. Warranty(s):
Metal roof system manufacturer, upon final acceptance for project, furnish a warranty [#choose one:

1. Covering bare metal against rupture, structural failure and perforation due to normal atmospheric corrosion exposure for a period of 20 years.
2. Covering paint finish against cracking, checking, blistering, peeling, flaking, chipping, chalking and fading for a period of # choose one: twenty (20) years for roof panels (premium thermoset silicone polyester) or twenty (20) years for wall panels and twenty (20) years for roof panels (premium fluorocarbon coating produced with Kynar 500 or Hylar 5000 resin)].
3. Submit specimen copy of manufacturer’s Weathertightness Warranty, including evidence of application for warranty and manufacturer’s acceptance of the applicator and warranty conditions.

F Test Reports:

1. Submit Test Reports showing that metal panels meet the air infiltration requirements of ASTM E 1680-95 when tested with a 6.24 PSF pressure differential with resulting air infiltration of 0.0071 cfm/sq ft.
2. Submit Test Reports showing that metal panels meet the water penetration requirements of ASTM E 1646-95 when tested with a 12.00 PSF pressure differential with no uncontrollable water leakage when five gallons per hour of water is sprayed per square foot of roof area.

G. Metal roof system fabrication certification:

1. Submit a letter from the metal panel manufacturer certifying the Double-Lok® panels have been produced in a factory environment (not job site) with fixed-base roll forming equipment.

H. Installation contractor’s qualifications:

1. Submit certificate from manufacturer certifying that installer of the metal roof system has met all of the criteria outlined in "1.02 C. Installer’s qualifications" and is an authorized installer certified by the manufacturer within one year of the beginning of installation of the metal roof system.

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