Roofing Shingle Classes

2218 steel ball listing.

Roofing shingle classes.

Roofing with a class c rating is able to. Ul 790 and astm e 108. There are three levels of fire resistance. Experience maximum flame spread of 13 feet.

Roof shingles are installed in such a fashion that each seam or joint is overlapped by a shingle further up the roof. The class 4 shingle. Class a is the highest level. Due to the materials used in their construction most asphalt shingle roof assemblies have a class a fire resistance rating.

With a regular shingle most of our competitors impact resistant shingles are only class 3 cracks and ruptures will appear from that kind of impact. Currently the highest class of asphalt shingles is the class 4 shingle which will carry at least the u l. Withstand a burning brand measuring 1 5 x 1 5 and weighing 1 4 gram. Patented weatherguard technology helps duration storm shingles achieve a ul 2218 class 4 rating the highest rating for impact resistance by integrating a polymeric backing material on the shingle.

Pressure treated shakes and shingles are the most common roofing materials to fall under the class b rating. Class c roofing provides only light fire protection. Fire resistance is based on two test standards. Roof shingles consist of a series of individual overlapping components that when laid together in rows or courses starting at the bottom edge of a roof form a barrier designed to repel water snow and ice.

What are roof shingles. With class 4 shingles there are no splits or tears. Cool roof shingles california title 24.