Ul Class A Roof

A roof is classified as a class a as the result of one test the external spread of flame test astme 108 or ul 790 standard.

Ul class a roof. This class for roof will qualify homeowners for a discount with most insurance companies. 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. Quick roof cement 3 tab green how doers get more done need help. It also serves as a key differentiator for products within the roofing market.

Asphalt roof shingles roofing shingles architectural shingles class a roof shingles 4 in. A stone coated steel roof costs about 2 1 2 times as much as a standard asphalt roof. Assembly rated class a roof coverings are those that meet class a standards when combined with other elements. 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.

The ul certification mark on roofing products and assemblies is relied on by code enforcement officials and buyers to verify that your products and systems meet regulatory requirements. 0 0416 kg m 2 copper sheets installed over combustible decks. All class 1 roof assemblies are class a roofs but not all class a roof systems meet the class 1 rating.