April 1, 2013
Hello Bob, thank you for your question regarding our Durock Cement Board. Durock Cement Board panels are noncombustible. However, even though the Durock Panels will not burn, they could allow enough heat to transfer through them to allow something behind them such as wood framing to catch on fire. If the Durock Panels are to be used in a Fire Rated Assembly care should be taken to be sure they are being used in an Assembly tested and approved by an organization such as Underwriters Laboratories.
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