Impact-rated roofing materials are often certified as Class 4, although some may fall into the Class 3 category. Impact-resistant asphalt shingles, metal roofs, clay tiles and slate can all ...

Check out CR’s top-rated 3 ... shingles and eventually leaks. We also drop 5-pound weights from various heights to simulate heavy hail to see which shingles bend, dent, or crack from the impact.