Section 074100 Metal Roof Panels
Panel shall be attached to substrate at a maximum spacing of 60"
All fasteners for panel, trim, and structural member attachment must be a specialty fastener with an anti-back out thread design and must be supplied by the metal roof system manufacturer, The fastener shall be painted to match the existing panel color.
Trim and flashing will be of the same gauge and finish unless approved otherwise by the metal roof system manufacturer.
D, Sealants and Sealant Tapes will be specified and supplied by the metal roof and wall system manufacturer
Part 3 - Execution
Substrate Inspection & Underlayment
Determine, with the presence of the installer, that structural conditions are satisfactory for panel and trim installation,
Install 70 Ib, Underlayment over deck and Peel/Stick Ice & Water under valleys and ridges
Protective film should be removed prior to extended exposure to sunlight, heat, and other
Panels should be handled at seams to prevent buckling
Consult with adjoining trades to prevent unnecessary damage to the finish
Install continuous length panels plumb, level, and straight with seams and ribs parallel
Install panels without excessive waves, warps, or buckles
Panel and Flashing Installation
All trim shall be installed using manufacturer's instructions
Fabricate and install sheet metal flashing in accordance with SMACNA manual
In the process of sheet metal installation, allow no sealant to migrate onto exposed surfaces
Any damaged product should be removed and replaced immediately upon recognition
Touch up paint should be used minimally for minor scratches. Major scratches or paint failures shall be recognized at damaged and require replacement
Clean exposed surfaces upon completion of installation to prevent finish damage
End of Section 07 41 00