GAF. Available in seven colors, Timberline American Harvest shingles are the newest in the maker’s Lifetime Shingles collection. An optimized construction and advanced color-application technique result in a dimensional look for the home. As a Lifetime Shingle, Timberline American Harvest shingles qualify for the GAF Lifetime Roofi ng System. Home owners who install any Lifetime shingle, plus at least three other qualifying GAF accessories, will be eligible for lifetime limited coverage on the entire roof. 800.766.3411. www.gaf.com.