Fire Rated Cement Board Siding

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Fire rated cement board siding.

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. The astm designation for durockbrand cement board is c1325. On 2 x 8 common plate 3 1 2 thermafiber safb both cavities joints taped. Cement board with edgeguard model 172954 view the tile backerboard collection 10 97.

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. Many fiber cement products carry a class a fire rating meaning that they can withstand several hours of heat before melting down. This does not mean that clearances to combustible building materials can be reduced by using hardiebacker 1 4. Note that most fiber cement sidings require a gypsum board underlayment to reach their maximum efficacy.

See national evaluation service reports no 259 and no 396 for fire resistant designs and or conditions of use. Hardietrim boards hardiesoffit pre cut panels artisan by james hardie hardiewrap weather barrier hardiebacker cement board. 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. Fiber cement siding maintenance.

This means that coupled with other fire resistant building materials including insulation and framing fiber cement siding will withstand fire and in some. 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. Concrete block plywood siding fire resistant building materials metal roofing building materials abc siding all electrical supplies. Fiber cement siding is a home siding material that is attractive paintable and is also fire resistant.

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. Nichiha s robust architectural wall panel rainscreen system and thick sierra lap board are ibc code compliant for use as exterior cladding in fire resistance rated wall assemblies. 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. And fiber cement brings documented fire resistant properties that help protect your home in the event the worst happens.