Fire Resistant Flat 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.

Fire resistant flat roof.

The fire rating of a roof covering is either class a class b class c or unrated. Expect to pay between 6 50 and 8 50 per square foot installed. How fire resistant is your current roof. Metal tiles are made of a material that does not ignite when on fire with a fire resistant barrier with a class a protection.

Good fire resistant roofing materials. 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. A fire resistant roof includes the entire roofing system including the deck insulation underlayment and even the roof incline. The roof sheathing material plays a large role in preventing ignition and slowing the spread of fire to other parts of the building.

A fire resistant or fireproof roof gives the entire structure a better chance to survive a fire. When tested to see how fast a fire spreads with these materials class a materials stop the spread two feet better than class b. Have a look at ecostar s recycled rubber majestic slate traditional tiles. Class a roofing materials are the most fire resistant.

Here are some popular roofing materials to provide class a protection for your home. An exterior fire retardant treated shake roof has a stand alone class b rating. Fire resistance ratings time temperature include structural elements and everything above including the roof membrane and its surfacing. But by including a particular underlying material it can meet the requirements for a class a roof.

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 called densdeck. Classes b and c denote progressively less fire resistant qualities. Class b materials are banned in some areas however because they are combustible. Shingles are categorized into classes that identify their fire resistance.

Class b materials are fire resistant but only withstand moderate exposure to fire. The benefit of metal tiles is that they are non corrosive and sit strong on houses with a steep slope. Class a is the most fire resistant and should be the choice of anyone living in wildfire prone areas. These materials include clay concrete shingles metal roofing and fiberglass asphalt composition.

The different materials can vary from zinc copper steel galvanized steel aluminum and so on. Metal is an extremely fire resistant roofing material regardless of what material the shingles are composed of.