Flame Resistant Roofing

Before choosing a material you should know the fire ratings that are given to each material.

Flame resistant roofing.

A professional roofing contractor can help you decide upon the best fire resistant material for your roof. Expect to pay between 6 50 and 8 50 per square foot installed. Metal roofing is non combustible and offers class a protection in combination with a fire resistant underlayment. Wood shake plywood or particle board roof are the most common roofing types listed as class c.

Shingles are categorized into classes that identify their fire resistance. Class a is the most fire resistant and should be the choice of anyone living in wildfire prone areas. A reliable roofer will be able to find the right option to match your style and budget. It s lightweight won t corrode and requires little maintenance.

Fire resistant roofing materials fire ratings. A fire resistant or fireproof roof gives the entire structure a better chance to survive a fire. Obviously since wildfires and the fire season has become increasingly worse it is important to note the roofing materials that are the lowest rated. A one hour rating would mean the structural elements have not yet reached their yield point when exposed to a under deck heat load defined in astm e119 for steel structural members as reaching 1 070 degrees f.

And you shouldn t overlook the roof as essential in fire protection since it s extremely vulnerable to sparks blown from wildland fire. Class c fire resistant roofing material. Fire resistance ratings time temperature include structural elements and everything above including the roof membrane and its surfacing. An exterior fire retardant treated shake roof has a stand alone class b rating.

The resistance to fire of roofing materials is rated based on a series of tests that is defined by a fire rating. Classes b and c denote progressively less fire resistant qualities. Class a roofing materials are the most fire resistant. Manufactured using a highly effective fire retardant and underlaid with a fire resistant barrier this assembly is one of only a few synthetic roofing materials to get ul s class a fire rating.

Common underlying materials include a type 72 roll roofing material also known as 72 pound felt or 72 pound capsheet material and a panelized gypsum product. Here are a few materials on the market that are effective in withstanding fire. Stucco is a plaster that has been used for centuries for both artistic and structural purposes. Their knowledge and experience can get you the best option for your needs and budget.

But by including a particular underlying material it can meet the requirements for a class a roof. An unrated roof is the most vulnerable the most common example of an unrated roof covering is one made using non fire retardant treated wood shakes or shingles.