Don’t let algae growth ruin the exterior appearance of your home. As an industry leader in innovation, Owens Corning blends copper-lined granules, which help resist algae growth, into our colorful granules in a way that is proprietary to us and is scientifically developed to meet the needs of specific regional climates.
Owens Corning® StreakGuard™ Algae Resistance Protection helps inhibit the growth of blue-green algae to provide protection against those ugly black streaks.
*See actual warranty for complete details, limitations and requirements.
