Roofing Shingle Classes

I ll share on several test that can be performed in this category for the highest performing impact resistant shingles on the market today.

Roofing shingle classes.

Roofing with a class c rating is able to. Class c roofing provides only light fire protection. 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. Fire resistance is based on two test standards.

2218 steel ball listing. Due to the materials used in their construction most asphalt shingle roof assemblies have a class a fire resistance rating. Class a is the highest level. There are three levels of fire resistance.

In a class 4 ul 2218 impact resistance test a 2 inch steel ball is dropped from 20 feet to see if the shingles will fracture. 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. Currently the highest class of asphalt shingles is the class 4 shingle which will carry at least the u l. 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.

With class 4 shingles there are no splits or tears. What are roof shingles. Ul 790 and astm e 108. Cool roof shingles california title 24.

This scrim reinforcement helps the shingle withstand the impact of hail. The class 4 shingle. Withstand a burning brand measuring 1 5 x 1 5 and weighing 1 4 gram.