Fire Rating Roofing Shingles

Class c roofing provides only light fire protection.

Fire rating roofing shingles.

Roof covering packaging that encloses shingles or other roofing that have a fire rating will display the level of fire or wind resistance rating of the materials. Pressure treated shakes and shingles are the most common roofing materials to fall under the class b rating. Shingles are categorized into classes that identify their fire resistance. But by including a particular underlying material it can meet the requirements for a class a roof.

Class a roofing materials are the most fire resistant. An exterior fire retardant treated shake roof has a stand alone class b rating. Experience maximum flame spread of 13 feet. 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.

Ul 790 is a quality assurance service listing. Consumer reports reveals the best roofing shingles from its comprehensive tests including 3 tab architectural and multilayered architectural asphalt shingles. Withstand a burning brand measuring 1 5 x 1 5 and weighing 1 4 gram. 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 with a class c rating is able to. Classes b and c denote progressively less fire resistant qualities.