Core4® is the most innovative development in asphalt shingle manufacturing and consists of these four features:
PolyCore™ Technology is what makes shingles with Core4™ stronger and longer-lasting than other leading shingle brands.
Shingles with Core4™ Technology come with the highest wind warranty in the industry.
Built with FlexCore™ Technology, these shingles bend and flex - when others crack and tear.
These shingles are built to mitigate the effects of expansion and contraction due to temperature changes.
Designed to Withstand Nature's Extremes
StormMaster® Shake and Pinnacle® Impact shingles are UL2218 Class 4 Impact rated. the test consists of simulating the speed and terminal velocity of a 2'' hail stone falling from the sky. To meet Class 4 Impact criteria, the shingle must show no evidence of fractures or cracks on the backside.
PolyCore® Technology is what makes shingles with Core4® stronger and longer-lasting than other leading shingle brands. StormMaster® Shake shingles with Core4® are made from enhanced virgin polymers, which means the asphalt core is scientifically engineered to perform better with increased consistency and reduced variability. Because of PolyCore®, Core4® shingles:
StormMaster® Shake shingles with Core4® Technology come with the highest wind warranty in the industry. Core4® enhanced polymers, coupled with the Atlas double FASTAC® adhesive sealant line, create a strong, thermally bonded roofing system.
In fastener pull-through tests, which examine the strength of the nail within the Atlas 1 1/2” Sweet Spot™ nailing area, shingles with Core4® performed more than 50 percent better than standard asphalt shingles.
StormMaster® Shake shingles with FlexCore® Technology bend and flex when others crack and tear. Their elasticity is what makes them stronger in two ways:
During its lifetime, your roof experiences thermal shock, or wide variations in heat and cold. StormMaster® Shake shingles are built to mitigate the effects of expansion and contraction due to temperature changes. ThermalCore® Technology also leads to better granule adhesion.
Even as the shingles expand and contract, they are less prone to shedding granules. Granule adhesion is important because shingle granules play a critical role in protecting your roof from the elements. Premature granule loss can lead to accelerated aging, asphalt exposure, and roof deterioration.