1518.9 Metal Panels/Shingles

Steel panels/shingles shall be a minimum of G-90 corrosion resistant, and shall be not less than 26 gage in thickness. Aluminum panels/shingles shall not be less than 0.025 inch (0.685 mm) thick. All other metal panel/shingle products shall be an equivalent weight. All metal panel/shingle assemblies shall be capable of withstanding foot traffic without damage to the metal panels/shingles. Metal panels/shingles shall have product approval for a complete metal system, which shall include the panel/shingle, underlayment and all related accessories to provide a complete waterproof system.

All metal panels/shingles assemblies shall be tested in accordance with Section 1523 and TAS 125.

The entire application method of all metal panel/shingle systems shall be detailed in the product approval and RAS 133, as applicable.

Metal shingles may be applied as a recover over a single layer of asphaltic shingles or smooth surface roofing, providing the deck is solid sheathed and in compliance with the provisions of this code, the existing prepared roof covering is in compliance with provisions of this code and the entire metal shingle system is applied as set forth in the product approval.

Metal panel/shingle systems shall not extend more than 1 inch (25 mm) beyond the roof eave.

All intersections shall be flashed in metal as provided in Section 1517.6, RAS 111 and the roof assembly product approval.