Fire Retardant Roofing Materials

Many structural materials will require underlying gypsum sheathing in order to achieve a good fire resistant rating and gypsum board is the most commonly used fire resistant interior finish.

Fire retardant roofing materials.

Class b roofing is made of combustible materials that are treated with chemicals to make them more fire retardant. Most metal roofs are made of steel copper zinc and alloys that are best for the dry environment in nevada. Class b materials are fire resistant but only withstand moderate exposure to fire. Metal tiles are made of a material that does not ignite when on fire with a fire resistant barrier with a class a protection.

Class a roofing materials are the most fire resistant. How doers get more done. 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. But by including a particular underlying material it can meet the requirements for a class a roof.

Classes b and c denote progressively less fire resistant qualities. Concrete block plywood siding fire resistant building materials metal roofing building materials abc siding all electrical supplies. These materials include clay concrete shingles metal roofing and fiberglass asphalt composition. Metal is an extremely fire resistant roofing material regardless of what material the shingles are composed of.

Generally most fiberglass shingles have class a fire ratings and most organic shingles such as treated wood shingles have class c ratings. Fire resistant roofing materials with the threat of wildfires being more real these days it is important to make your building fire resistant. As the most economical of all residential roofing materials asphalt shingles make up 80 percent of the u s. The fiberglass based variety also offers excellent fire resistance when installed with fire code compliant underlayments.

Class b materials are banned in some areas however because they are combustible. Gypsum board also known as drywall consists of a layer of gypsum sandwiched between two sheets of paper. Class c roofing is made up of things like untreated wood shakes and shingles which will only survive light fire damage. An exterior fire retardant treated shake roof has a stand alone class b rating.

The benefit of metal tiles is that they are non corrosive and sit strong on houses with a steep slope. Shingles are categorized into classes that identify their fire resistance. One of the most important aspects to fire proofing your home or building is the roof.