Finally wood isn t fire resistant.
Fire resistant siding types.
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 many fiber cement products carry a class a fire rating meaning that they can withstand several hours of heat before melting down.
Therefore internal corners would be a good location for a noncombustible or ignition resistant material.
Examples of different wood siding options.
It offers the look of authentic wood shiplap siding even with lookalike textured wood grain.
Chemical flame retardant sprays help improve the fire resistance of this house siding material.
Unlike wood siding fiber cement siding doesn t burn even under extreme heat.
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A class a rating means it is going to offer the maximum protection possible.
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But while it does help improve the resistance wood siding is still more susceptible to burning in a fire than other types of siding that s more fire resistant.
Fiber cement siding stormed onto the scene a few decades ago and revolutionized the house siding industry because it possesses the best of many worlds.
Concrete one of the most common building materials is also an excellent fire resistant material it is noncombustible and has low thermal conductivity meaning that it takes a long time for fire to affect its structural load bearing ability and it protects from the spread of fire.
The secret to fiber cement s durability is also what makes it fire resistant.
This can be a major deciding factor if you live in an area with a dry climate where forest fires are common.
Also keep in mind that cladding your home in fire resistant siding won t matter if embers find their way in through cracks or other flammable surfaces so be sure to enclose eaves soffits and fascias with complementary fire retardant trim.
Rollex navigator steel siding for example has a class a fire rating.
Unlike wood it is fire resistant.
Steel siding not only offers protection against a fire it is also naturally resistant and does not require the use of fire resistant treatments.
The highest rating possible for fire resistance.
Testing of siding products conducted at the uc fire research laboratory showed that the siding joint is the most vulnerable part of a combustible siding assembly.
Note that most fiber cement sidings require a gypsum board underlayment to reach their maximum efficacy.