It can be used as part of a hour long fire wall which is a wall that can resist a fire for up to an hour when properly constructed.
Hardiebacker cement board fire rating.
Durock is manufactured in sheets with a thickness of anywhere from 1 4 to 5 8 inch a width of 32 36 or 38 inches and a length between 4 and 10 feet.
On 2 x 8 common plate 3 1 2 thermafiber safb both cavities joints taped.
Hardiebacker board is generally noncombustible and the heat produced from the fireplace will not damage it.
Hardiebacker cement board hardiebacker cement board is the strongest easiest to use and is the most durable lightweight cement backer board on the market today.
Hardiebacker is composed of 90 percent portland cement and.
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The best backer board choice.
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The exact fire rating of durock is dependent on the other materials used during construction but a panel 1 4 or 1 2 inch thick typically provides an additional hour of fire protection.
Yes hardiebacker 1 4 cement board is deemed noncombustible when tested to astm e 136 and can be used in conjunction with other noncombustible materials around a fireplace.
James hardie industries manufactures hardiebacker.
Hardiebacker cement board is a portable fiber cement backer board that is composed of 90 portland cement and sand 10 cellulose.
Tile backer board brands hardiebacker.
Use 5 8 inch backer board as a fire rated material similar to type x drywall.
This does not mean that clearances to combustible building materials can be reduced by using hardiebacker 1 4.
The hardiebacker board is made with a quarter inch thickness so that it can serve as fireplace facing.
Durock cement board hardie backer 0 25 in.
Unlike pure cement board hardiebacker s fiber is almost invisibly integrated into the board making for cleaner cuts.
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