Beetlekill Siding Class C Fire Rating

Cedur fire retardant cedar shakes.

Beetlekill siding class c fire rating.

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. Has a minimum fire rating for the assembly of 1 hour which is a typical requirement for many building codes. Type c fire rated drywall sometimes referred to as improved. Class c fire retardant treatment a product that is effective against light fire exposures.

The tests used to determine the fire ratings for roofs also provide fire resistance information. Class b roofing will last about one hour while class c will only last about 20 minutes. Lp smartside is a class c iii rated product when tested according to astm e84. What is the fire rating.

Or 3 5 8 inch 610 mm steel studs spaced 24 o c. The highest rating possible for fire resistance. Under such exposures roof coverings of this class are not readily flammable afford a measurable degree of fire protection to the roof deck do not slip from position and pose no flying brand hazard. The astm d 2898 standard rain test the highest fire classification is class a.

Rollex navigator steel siding for example has a class a fire rating. 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. Fire ratings for roofs are classified as either class a class b class c or are unrated if a roof covering cannot meet the requirements for any of these classifications. Fire resistance that is the amount of time the product lasts before ignition is also taken into consideration with regard to the fire rating.

Fiber cement can withstand high heat from fires. Non classified roof systems have no fire rating. 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. Class a is the highest rating offering the highest resistance to fire and unrated is the worst.

Type x fire rated gypsum drywall that is 5 8 inch 15 9mm thick and installed on each side of nominal 2 inch x 4 inch 38x89mm wood studs spaced 16 inch 400mm o c. 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. Hourly fire resistance ratings hourly ratings are a function of the assembly being used. Note that a class c roof system is considered fire resistant while a class c or iii building material as above is not.

All lp smartside siding can be used in a 1 hour fire rated assembly when it is installed over 5 8 type x gypsum which is consistent with other siding types such as fiber cement siding.