There are three different classes of fire ratings given to asphalt shingles a b and c.
Fire resistant shingle siding.
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.
50 to 100 per square enough shingles to cover 100 square feet installed.
Cedur fire retardant cedar shakes.
Fortunately you can identify if a type of asphalt shingle is fireproof by its fire rating.
Steel siding not only offers protection against a fire it is also naturally resistant and does not require the use of fire resistant treatments.
This product is available with permanent pre impregnated colors or primed and paintable is durable rot resistant and can be significantly less expensive than.
For fire hazardous areas such as california cedar shakes and shingles with ftx fire retardant treatment provide permanent fire protection.
Class a roofing materials are the most fire resistant.
Class b roofing will last about one hour while class c will only last about 20 minutes.
Unlike wood siding fiber cement siding doesn t burn even under extreme heat.
Generally most fiberglass shingles have class a.
Rollex navigator steel siding for example has a class a fire rating.
The secret to fiber cement s durability is also what makes it fire resistant.
Roofing products with a class a rating will last 2 to 4 hours before igniting.
A special vacuum pressure impregnation process ensures that the.
This is an example of a noncombustible siding of fiber cement shingles designed to look extremely realistic almost indistinguishable from highly combustible cedar shake shingles.
Each metal type has a different melting point but most fires do not reach such extreme temperatures making a metal roof one of the.
A class a rating means it is going to offer the maximum protection possible.
Fire resistance that is the amount of time the product lasts before ignition is also taken into consideration with regard to the fire rating.
A fire resistant or fireproof roof gives the entire structure a better chance to survive a fire.
Metal is an extremely fire resistant roofing material regardless of what material the shingles are composed of.
Shingles are categorized into classes that identify their fire resistance.
Roof fire protection ratings.
The different materials can vary from zinc copper steel galvanized steel aluminum and so on.
Fiber cement can withstand high heat from fires.
Classes b and c denote progressively less fire resistant qualities.
90 of the planks are made of materials that won t burn giving fiber cement siding a class 1 a fire flame spread rating the highest classification available.
The highest rating possible for fire resistance.
The fiberglass based variety also offers excellent fire resistance when installed with fire code compliant underlayments.
