Algae Growth is one main concern that can effect any home, but choosing the right shingles can help reduce algae growth . Owens Corning blends copper-lined granules, which help resist algae growth.
According to Owens Corning website, it states that “Owens Corning® StreakGuard™ Algae Resistance Protection helps inhibit the growth of blue-green algae to provide protection against those ugly black streaks.”