Class 4 Shingles are Impact Resistance
Class 4 Shingles Survives Impact Test Not many homeowners would know if the shingles on their roof would survive severe impact from a 2-inch steel ball dropping on them or if they would survive extreme weather.
Class 4 Shingles Survives Impact Test Not many homeowners would know if the shingles on their roof would survive severe impact from a 2-inch steel ball dropping on them or if they would survive extreme weather.