Technical Specifications
StormMaster
®
performs
better than standard
asphalt products
64%
Mechanical
Uplift Lab
Test Results
StormMaster® Slate shingles with
Core4™ are UL 2218 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 back side.
UL 2218 Class 4 Impact Test
Standard Asphalt
Products
StormMaster® Slate shingles with
Core4™ Technology come with an Atlas
130 mph Wind Limited Warranty.
**
Double Sealant Lines
Core4™ enhanced polymers, coupled with the Atlas double FASTAC® adhesive sealant line,
create a strong, thermally bonded roong system.