StormMaster® Shake shingles featuring Scotchgard™ Protector preserve your home's curb appeal by helping to prevent ugly black streaks caused by algae, leaving the roof looking beautiful and allowing the shingle's original color to shine.

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