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// CODE SNIPPET

R902.1 Roofing Covering Materials

Residential Code 2015 of Utah > 9 Roof Assemblies > R902 FIRE CLASSIFICATION > R902.1 Roofing Covering Materials
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Roofs shall be covered with materials as set forth in Sections R904 and R905. Class A, B or C roofing shall be installed in jurisdictions designated by law as requiring their use or where the edge of the roof is less than 3 feet (914 mm) from a lot line. Class A, B and C roofing required by this section to be listed shall be tested in accordance with UL 790 or ASTM E108.

Exceptions:

1. Class A roof assemblies include those with coverings of brick, masonry and exposed concrete roof deck.

2. Class A roof assemblies include ferrous or copper shingles or sheets, metal sheets and shingles, clay or concrete roof tile, or slate installed on noncombustible decks.

3. Class A roof assemblies include minimum 16 ounces per square foot copper sheets installed over combustible decks.

4. Class A roof assemblies include slate installed over underlayment over combustible decks.
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