Owens Corning Classic® shingles provide lasting protection and great looks. Durable, weathering-grade asphalt and tough, Fiberglas® mat construction provide protection from the elements. Classic shingles are backed by a 60 mph wind-resistance warranty and carry UL Fire and Wind Resistance Ratings. Plus, they’re specially treated to resist roof discoloration due to algae growth, and carry a separate 10-year algae-resistance warranty.