Ul Class A Roof

A stone coated steel roof costs about 2 1 2 times as much as a standard asphalt roof.

Ul class a roof.

It also serves as a key differentiator for products within the roofing market. All class 1 roof assemblies are class a roofs but not all class a roof systems meet the class 1 rating. Class a roof assemblies also include ferrous or copper shingles or sheets metal sheets and shingles clay or concrete roof tile or slate installed on noncombustible decks or ferrous copper or metal sheets installed without a roof deck on noncombustible framing. Roofing materials are changing for the better becoming more and more advanced each year.

0 0416 kg m 2 copper sheets installed over combustible decks. This class for roof will qualify homeowners for a discount with most insurance companies. Assembly rated class a roof coverings are those that meet class a standards when combined with other elements. A class 1 roof has undergone a series of tests that evaluate the entire roof assembly including the external spread of flame test utilized for the class a rating.

Class a roof assemblies include minimum 16 oz sq. Asphalt roof shingles roofing shingles architectural shingles class a roof shingles 4 in. For example shake roofing with a fire retardant treatment rates class b on its own but achieves a class a rating when combined with specified underlying materials such as type 72 roll roofing material.