Fire Rated Roofing Materials

Fire resistant roofing materials fire ratings.

Fire rated roofing materials.

A reliable roofer will be able to find the right option to match your style and budget. An example of a roof assembly is given in figure 1. 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. However if the wood is treated with fire retardant chemicals it can often meet class b or even class a requirements.

Some roofing materials such as untreated wood are unrated as they cannot meet even the minimum ratings for fire safety. Before choosing a material you should know the fire ratings that are given to each material. Combustible and noncombustible refer to the performance of a material e g wood stucco steel. Your roof might also come into contact with open flame if a fire moves into your area.

A professional roofing contractor can help you decide upon the best fire resistant material for your roof. Underlying material may also be used to boost the roof material rating but these rating will. Understanding roof fire ratings class a roofing. Concrete is often listed as among the best fire resistant roofing materials too.

Their knowledge and experience can get you the best option for your needs and budget. Class a roofing is the preferred choice for any home but this type of roofing is particularly important if you live in an area that is prone to wildfires to achieve a class a rating the roof must be effective against severe fire exposure. Here are a few materials on the market that are effective in withstanding 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.

Roofing materials go through strenuous testing to determine a fire rating. An exterior fire retardant treated shake roof has a stand alone class b rating. Using quality fire resistant roofing materials gives the entire structure a better chance of surviving a fire. But by including a particular underlying material it can meet the requirements for a class a roof.

Stucco is a plaster that has been used for centuries for both artistic and structural purposes. Ul 790 is a quality assurance service listing. The resistance to fire of roofing materials is rated based on a series of tests that is defined by a fire rating. Wood shake plywood or particle board roof are the most common roofing types listed as class c.

Roofing fire ratings 101. And you shouldn t overlook the roof as essential in fire protection since it s extremely vulnerable to sparks blown from wildland fire. Fire resistant can refer to a material or an assembly e g all the component s in a wall siding insulation and sheathing products.