Fact: Your roof can represent up to 40% of your home's curb appeal. Improve its look and even its resale value with Timberline® American Harvest® Shingles from GAF. The American Harvest® Collection with Advanced Protection® Shingle Technology will give you the modern architectural style you want, at a price you can afford, with rugged, dependable performance that only a Timberline® roof can offer. Its custom color palette uses surprising colors that reflect the beauty of America’s heartland. Subtle blends with contrasting colors add even greater dimensionality and beauty to your roof using higher contrast and on-trend colors.