Original article by: Builder Online

Given the many essential tasks of a home's exterior—defense against the elements, insulation and air quality control, and of course curb appeal—the industry's newest exterior products are made with an eye toward toward taking these tasks and doing them better; keeping homes safer, more comfortable, and more beautiful for longer periods of time.

GAF has enhanced its Timberline American Harvest Shingles with two of its newest technologies. GAF StainGuard Plus is designed to protect against algae discoloration over a 25-year limited warranty period, and LayerLock enables quick and accurate installation—up to 99.9% nailing accuracy and up to 30% faster nail fastening during installation than Timberline HD shingles, according to the manufacturer. When installed with qualifying accessories, the shingles are also eligible for an additional limited wind warranty. gaf.com