Pristine Shingles with Scotchgard Protector

Atlas Roofing Corp. has made available its Pristine Shingles with Scotchgard Protector from 3M. Scotchgard eliminates stains and streaks caused by algae on the Pristine Shingles, which include Pinnacle, StormMaster Shake and StormMaster Slate. 3M developed a copper granule to protect the roofing surface; the granule is used in a 10 percent blend rate in the Pristine Shingles, which is verified by a third-party laboratory.