Fire Rated Cement Board Siding

Usg durock brand 1 2 in.

Fire rated cement board siding.

Note that most fiber cement sidings require a gypsum board underlayment to reach their maximum efficacy. This is called home hardening. Reports are subject to re examination revisions and possible changes all durockbrand cement board products meet astm standard e136 for noncombustibility. Cement board with edgeguard model 172954 view the tile backerboard collection 10 97.

This means that coupled with other fire resistant building materials including insulation and framing fiber cement siding will withstand fire and in some. Fiber cement siding maintenance. 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.

Many fiber cement products carry a class a fire rating meaning that they can withstand several hours of heat before melting down. On 2 x 8 common plate 3 1 2 thermafiber safb both cavities joints taped. While more fiber cement siding manufacturers have popped up in recent years unlike other home related materials such as flooring or tile fiber cement is not a market that lends itself to small or even medium scale manufacturers. Icc es ner 405 fire resistance rated wall assemblies ner report ner 405 click the link above and go to section 3 5 of ner 405.

Fiber cement fiber cement shingles and clapboards made from a mix of portland cement sand and wood usually carry a class a fire rating which means they can withstand 2 to 4 hours of high heat before your home s structure starts to fail. See national evaluation service reports no 259 and no 396 for fire resistant designs and or conditions of use. An alternative to vinyl siding fiber cement a mixture of cement sand and wood fibers manages to achieve very high fire resistance without sacrificing convenience and durability. 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.

Hardietrim boards hardiesoffit pre cut panels artisan by james hardie hardiewrap weather barrier hardiebacker cement board. View top sellers in. The astm designation for durockbrand cement board is c1325. Concrete block plywood siding fire resistant building materials metal roofing building materials abc siding all electrical supplies.