The future of asphalt shingle technology starts with the Core 4 roofing shingle from Atlas Roofing. Atlas Roofing has spent numerous years perfecting this technology so that your shingles are guaranteed to withstand the most severe of weather in the Triad. This technology uses synthetic rubber to reinforce the asphalt shingle that are built to withstand weather patterns including high wind rates and velocities up to Class 4 impact resistance. These shingles are made for whatever Mother Nature can throw at them: Wind, Hail, Rain! They are the highest rated impact shingles on the market today.