CertainTeed StreakFighter® for Algae Resistance

StreakFighter® provides reliable, long-term protection against the unsightly black streaks caused by algae formation. Featuring copper-infused surface granules that possess natural anti-algae properties, StreakFighter works to prevent algae from taking hold on shingles - helping roofs maintain their beauty and color, and helping homeowners avoid expensive algae cleaning or time-consuming roof maintenance. 

StreakFighter protection is backed by an industry-leading warranty, and is a standard feature on CertainTeed asphalt shingles sold in regions where the algae that causes black streaking is prominent.