Fire Retardant Roofing Materials
These materials include clay concrete shingles metal roofing and fiberglass asphalt composition.
Fire retardant roofing materials. Class a roofing materials are the most fire resistant. 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. Fire resistant roofing materials with the threat of wildfires being more real these days it is important to make your building fire resistant. The fiberglass based variety also offers excellent fire resistance when installed with fire code compliant underlayments.
How doers get more done. 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. But by including a particular underlying material it can meet the requirements for a class a roof.
Class b materials are fire resistant but only withstand moderate exposure to fire. The different materials can vary from zinc copper steel galvanized steel aluminum and so on. Shingles are categorized into classes that identify their fire resistance. Gypsum board also known as drywall consists of a layer of gypsum sandwiched between two sheets of paper.
Most metal roofs are made of steel copper zinc and alloys that are best for the dry environment in nevada. Metal tiles are made of a material that does not ignite when on fire with a fire resistant barrier with a class a protection. As the most economical of all residential roofing materials asphalt shingles make up 80 percent of the u s. Metal is an extremely fire resistant roofing material regardless of what material the shingles are composed of.
The benefit of metal tiles is that they are non corrosive and sit strong on houses with a steep slope. Class c roofing is made up of things like untreated wood shakes and shingles which will only survive light fire damage. Class b materials are banned in some areas however because they are combustible. Class a roofing materials are typically non combustible can withstand severe fire exposure and don t produce firebrands.
An exterior fire retardant treated shake roof has a stand alone class b rating. Generally most fiberglass shingles have class a fire ratings and most organic shingles such as treated wood shingles have class c ratings. Many communities in fire prone areas ban class b and class c roofing materials for safety reasons.