Fire Ratings for Roofing Material

Article Written by:
Stephen L. Quarles, Senior Scientist,  Insurance Institute for Business & Home Safety, Richburg, SC

Fire ratings for roofs are classified as either Class A, Class B, Class C or are unrated if a roof covering cannot meet the requirements for any of these classifications. Class A is the highest rating, offering the highest resistance to fire, and unrated is the worst. Examples of a Class A roof covering include concrete or clay roof tiles, fiberglass asphalt composition …