Cement Board Vs Drywall Fire Rating

Most type x drywall has a one hour fire rating.

Cement board vs drywall fire rating.

As added benefits type x absorbs sound slightly better and is slightly stronger than conventional 3 8 inch or 1 2 inch drywall. Get free shipping on qualified fire resistant cement boards or buy online pick up in store today in the building materials department. Cement board with edgeguard model 172954 view the tile backerboard collection 10 97. Hardiebacker board is not designed to take the place of stone drywall or other materials used near or on your fireplace.

Two hour fire rated construction chase walls steel framed acoustical performance construction detail description test number stc test number 9 1 2 usg durock brand cement board and 1 4 ceramic tile two rows 2 x 4 wood studs 16 o c. On 2 x 8 common plate 3 1 2 thermafiber safb both cavities joints taped. Around a fireplace you can use hardiebacker board to prepare an area for tile installation either stone or ceramic. Such materials include drywall also known as sheetrock and durock also known as cement board.

Also because it is denser than normal gypsum and paper drywall it takes longer for the fire to degrade it. 1 hour fire rated construction wood framed loadbearing acoustical performance l n test number c c test number 5 1 2 durock cement board and 1 4 ceramic tile exterior 2 x 4 studs 16 o c. Glass fibers are added to the board to help it retard fire. Blue board drywall is not made for mud tape or paint.

Drywall by john vann. To receive the type x designation a gypsum board must achieve at least a one hour fire resistance rating for 5 8 inch board or a 3 4 hour rating for 1 2 inch board in a single layer nailed on each face of load bearing wood framing members. Thermafiber safb sheetrock firecode panels r ul des u329 durock cement board systems ny sa932 5. Usg durock brand 1 2 in.

This does not mean that clearances to combustible building materials can be reduced by using hardiebacker 1 4. 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. Hanging drywall is not difficult if you have patience the right tools and. Durock 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.