The Scotchgard Roofing System

The Scotchgard™ Roofing System is the single most effective algae-resistant solution available. And it is your most effective long-term solution for a beautiful roof. For more information, call the 3M Industrial Mineral Products Division Laboratory at 800-447-2914, ext. 31, or visit www.scotchgard.com/roofinggranules.