TAMKO Roofing Products, Joplin, Mo., offers the American Heritage Series® laminated fiberglass shingles. The design emulates the rustic beauty of wood shakes while the rich Shadowtone granule blend provides a dimensional appearance. The shingles feature double layers of durable fiberglass mat for strength. Each layer is coated on both sides with weathering-grade asphalt and topped with ceramic mineral granules for maximum roofing protection. A self-sealing strip of asphalt helps seal each shingle tightly and provides added wind resistance. Each Heritage shingle is backed by a 30-, 40- or 50-year limited warranty.