StormMaster® Slate shingles featuring Scotchgard™ Protector are designed to resist the harshest weather conditions including high wind, pounding rain and destructive hail. StormMaster shingles are made with a rubberized polymer to make the shingles flexible, strong, and durable.

Atlas StormMaster® Shingles built with Core4™ Enhanced Polymer Technology were designed to withstand damaging wind and hail, as well as wide variations in heat and cold (known as thermal shock).

Third-party testing by the Insurance Institute for Business and Home Safety (IBHS) ranked Atlas StormMaster® Shingles No. 1 for impact resistance among all other brands tested.

Atlas Shingles with Core4™ consist of four key features:

• PolyCore™ Technology
• FlexCore™ Technology
• WeatherCore™ Technology
• ThermalCore™ Technology