Fire Rating Siding Class A

Fiber cement siding is the only siding on the market to receive a class 1 a rating making it ideal for any property where the threat of fire may be a concern.

Fire rating siding class a.

Building code fire resistance requirements building codes establish fire resistance requirements for roofs based on the type of construction e g concrete steel wood for the building. Wui approved class a fire rated decking and siding dassoxtr has been tested and meet standards for class a fire rated and w u i. Class a fire retardant high fire zone wood siding. Dassoxtr fused bamboo decking siding has been tested for flame smoke and fire testing and has earned the class a fire rating.

Rollex navigator steel siding for example has a class a fire rating. The period of time a fire resistant building element like jameshardie siding along with other components of the assembly maintains the ability to confine a fire continues to perform a given structural function or both as determined by astm e 119 tests. In this case the class a highest degree of fire resistance b or c rating provides relative information about the ability of the roof covering and assembly to resist the penetration of fire as a result of a standard fire exposure astm e 108. In addition fiber cement is beautiful versatile and resistant to things like rot and termites as well so you can extend that peace of mind to other areas of home maintenance as well.

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. A class a rating means it is going to offer the maximum protection possible. What constitutes a 1 hour fire rated assembly. Roofing products with a class a rating will last 2 to 4 hours before igniting.

The tests used to determine the fire ratings for roofs also provide fire resistance information. Steel siding not only offers protection against a fire it is also naturally resistant and does not require the use of fire resistant treatments. Cedur fire retardant cedar shakes. Posted september 19 2011 by timbersil wood news in building materials construction fire retardant lumber glass infused wood green building green products lumber zero voc.

Tested roof systems are fire classified class a b or c where the most fire resistant roof assemblies are class a and class c is least resistant. The highest rating possible for fire resistance. Class b roofing will last about one hour while class c will only last about 20 minutes. Fire resistance that is the amount of time the product lasts before ignition is also taken into consideration with regard to the fire rating.

Class a fire rated wood siding. Approved for both our decking siding.