Are Sierra Steeltiles fire-rated?

Sierra Steeltiles are a non-combustible roof material that will never contribute to flame spread. A unique design feature of the Steeltiles is the air space formed within the tile walls. This air space creates a thermal buffer between the roof deck and hot embers that may land on the roof during a fire. Most metal roofing, like standing seam and agricultural panels, lay directly on roof decks. This condition allows direct heat transfer from burning embers that can ignite the wood roof surface below. The top surfaces of Sierra Steeltiles are raised off the roof to prevent a fire hazard through direct heat transfer.

There are special underlayments that further enhance fire resistance with a non-combustible Sierra Steeltile roof. Ask your architect or installer for more information on these.