Cement Board Vs Drywall Fire Rating

Drywall by john vann.

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. Most type x drywall has a one hour fire rating. Hardiebacker board is not designed to take the place of stone drywall or other materials used near or on your fireplace. Also because it is denser than normal gypsum and paper drywall it takes longer for the fire to degrade it.

National gypsum company fire and sound selector ul type designation product name 5 16 gold bondfsw brand fire shield gypsum board 5 8 gold bond brand fire shield gypsum board type x 5 8 gold bond brand fire shield exterior soffit board type x 5 8 gold bond brand hi abuse xp fire shield gypsum board type x 5 8 gold bond brand hi impact xp fire shield. Glass fibers are added to the board to help it retard fire. Such materials include drywall also known as sheetrock and durock also known as cement board. Instead it was designed to be a subfloor or backing material for another material installed on top of it.

Hanging drywall is not difficult if you have patience the right tools and. Fire rating of durock vs. 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. Blue board drywall is not made for mud tape or paint.

Around a fireplace you can use hardiebacker board to prepare an area for tile installation either stone or ceramic. Thermafiber safb sheetrock firecode panels r ul des u329 durock cement board systems ny sa932 5. Get free shipping on qualified fire resistant cement boards or buy online pick up in store today in the building materials department. 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.

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. 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. This does not mean that clearances to combustible building materials can be reduced by using hardiebacker 1 4.