CertainTeed's Landmark® PRO UL 2218 Class 3 Impact Resistant shingles are a premium roofing option that combines durability and aesthetic appeal. These shingles are engineered with a multi-layer design, featuring a fiberglass base and protective outer layer, providing superior impact resistance. The shingles also feature StreakFighter® algae resistance, ensuring they are resistant to unsightly black streaks caused by algae growth.