An American invention first used in 1901, asphalt shingles are the most widely used, easily recognizable product in North America. Technology has improved since the advent of the asphalt shingle, and organic material (originally cotton rags) has been replaced by more durable fiberglass. Asphalt shingles are produced in widely varying qualities and can be applied to any sloped roof with no additional attic or substrate bracing.
Some manufacturers offer impact resistant shingles by using SBS (styrene based rubber) during production. These products carry Class A fire ratings and Class 4 impact resistance ratings. These ratings usually qualify for discounted insurance premiums with underwriters. Contact your insurance provider to find out how much you could save.