Dallas Roofing: Article About Fire Resistance
Homeowners who live in areas that have frequent wildfires may be interested in what types of protection are offered by different roofing materials. A Dallas roofing professional can give owners a good idea of which roofing materials are most resistant to heat and the spreading of fire.
Asphalt shingles are the most common roofing material in use for residential purposes. Shingles come in three different class designations based on their fire resistance. Class A shingles offer the highest level of fire resistance, and Class C shingles offer the least fire resistance. These ratings are for fires originating outside the building and ensure that the roofing materials will not come apart or flake away from the building to start other fires elsewhere. Both the shingle's base mat and underlayment materials contribute to the roof's overall fire resistance. Fiberglass and synthetic materials offer more fire resistance than organic felts.
Concrete and clay tiles also will not burn. However, it is possible that they will crack under extreme heat for a prolonged period of time. However, they are not susceptible to actually catching fire or spreading fire from the outside.
Metal is also highly fire resistant. The coatings on top of the metal roof provide a greater level of heat resistance to keep heat from transferring through the roof's surface and into the house.
The expert roofers at Total Roofing of Dallas can assist you with any questions regarding roof maintenance or residential roofing.
Metal roofs will not come apart under heat and can withstand external fires for an extended period of time.
One of the biggest factors in determining whether or not a roof will be able to resist fire actually has more to do with what is on and around the roof. For instance, trees that touch the roof can spread fire to asphalt shingles. In addition, since trees tend to leave behind heavy mats of dried leaves and twigs, they also represent a big fire hazard. If dried leaves do catch fire on top of the shingles, the shingles will be forced to withstand more damage than they otherwise would. The best practice is to keep trees and shrubs away from the building altogether to prevent the risk of fire spreading to the structure altogether.
Homeowners should know that the roofing materials they select should be rated to match the level of risk associated with their fire danger. Some areas are more likely to see wildfires and other types of heat damage and should have more resistant roofing to compensate for the added danger.