WebCharacterized by easy installation, lightweight, and exceptional fire resistance, heavy-duty asphalt shingles undergo a fan-wind tunnel test that determines their wind-rating specifications. class-D shingles are ideal to be used in areas with winds up to 90 mph, whereas class-G shingles are used in areas with winds up to 120 mph. Class H, the … WebFor the highest level of wind rated shingle, look for shingles that are rated to ASTM D3161 Class F or ASTM D7158 Class H. For the highest level of impact protection, look for …
Hurricanes: Roof - Choosing the Right Covering - FLASH
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Roof warranty and comparison guide for GAF shingles
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