Fire Rating Roofing Shingles

Shingles feature an algae defender.

Fire rating roofing shingles.

Class a fire resistance rating. Experience maximum flame spread of 13 feet. Consumer reports reveals the best roofing shingles from its comprehensive tests including 3 tab architectural and multilayered architectural asphalt shingles. 110 130 mph wind warranty.

Pressure treated shakes and shingles are the most common roofing materials to fall under the class b rating. Classes b and c denote progressively less fire resistant qualities. If wood shakes and shingles are impregnated with fire retardant chemicals they meet the requirements for a class b fire rating and can meet a class a rating if additional materials are included in the roof assemblies. 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.

Features a diamond open tooth design. The ul tests under ul 790 evaluate the behavior of a roof covering under three fire hazards exposure of the roof to intermittent flame. Withstand a burning brand measuring 1 5 x 1 5 and weighing 1 4 gram. Roofing with a class c rating is able to.

These shingles will be effective against moderate fire exposures are not readily flammable and will not cause fires to spread. Ul 790 is a quality assurance service listing. Unique diamond shape is a good choice for homes with a steep roof. Shingles are categorized into classes that identify their fire resistance.

A standard fire test is used to determine the fire rating of a roof covering. Class c roofing provides only light fire protection. The main difference. Generally most fiberglass shingles have class a fire ratings and most organic shingles such as treated wood shingles have class c ratings.

Class a roofing materials are the most fire resistant. These shingles are also not readily flammable will not readily contribute to the spread of fire and are relatively effective against moderate fire exposure. Only available in four colors.