RI Roofing Contractor Practice Questions - Rhode Island Commercial Roofing Contractor Exam

What is the primary difference between a Class A and Class C fire-rated roofing assembly?

Class A is for residential only; Class C is for commercial Class A withstands severe fire exposure; Class C withstands light fire exposure Class A uses only metal materials; Class C uses asphalt Class A requires a 2-hour rating; Class C requires 30 minutes

Correct Answer:

Class A withstands severe fire exposure; Class C withstands light fire exposure

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