Fire Retardant Treatment for Cedar Shakes and Shingles
There are three different classes of fire retardant treatments available. Check with your local building official to determine which Class A, B or C roof is best suited in your area.
FSR™s fire retardant treatment is offered for all specifications of
Western Red Cedar Shakes and
Shingles. Our pressure treated roofing material meets all local and state wildland urban interface requirements.
Class A Fire Retardant Treatment
This classification uses a Class B fire retardant treated product along with a UL (Underwriters Laboratories) rated fire retardant fiberglass cap sheet underlay. A Class A product is effective against severe fire exposures. Under such exposures, roof coverings afford a fairly high degree of fire protection to the roof deck, do not slip from position and pose no flying-brand hazard.
Class B Fire Retardant Treatment
Class B fire retardant treatment is effective against moderate fire exposures. Under such exposures, roof coverings of this class are not readily flammable, afford a moderate degree of fire protection to the roof deck, do not slip from position and pose no flying-brand hazard.
Class C Fire Retardant Treatment
A product that is effective against light fire exposures. Under such exposures, roof coverings of this class are not readily flammable, afford a measurable degree of fire protection to the roof deck, do not slip from position and pose no flying-brand hazard.
