Use Exterior Roof and Wall Claddings That are Non-combustible or Have a Minimum of a 1-hour Fire Rating.

The majority of roof shingles manufactured today have a Class A fire rating—providing the greatest fire resistance in a fiberglass shingle. Metal roofs are non-combustible and provide an excellent option. Tile roofs are also non-combustible but care must be taken to ensure that gaps under tiles at eaves of barrel vault roofs are plugged with bird stops.

Siding or cladding materials having a 1-hour fire rating include natural and synthetic stone, brick, concrete, stucco, metal, and fiber cement.