b'TimberlineNorth Americas#1Selling Roof T imberline Ultra HD 10 T imberline HD 12TimberlineAmerican Harvest 16 TimberlineNatural Shadow 18T imberlineCool Series 20 s i l n m e e l g n i h m i T e f i e i r b e TimberlineShingles.U.S. onlys l T* **STAINGUARDPLUS ALGAE PROTECTION *S tainGuard algae protection is available only on shingles sold in packages bearing the StainGuard logo. Products with StainGuard algae protection are covered by a 10-year limited warranty against blue-green algae discoloration. See GAF Shingle & Accessory Ltd. Warranty for complete coverage and restrictions.** StainGuard Plus algae protection is available only on Timberline Ultra HD Shingles sold in packages bearing the StainGuard Plus logo. Products with StainGuard Plus algae protection are covered by a 25-year limited warranty against blue-green algae discoloration. See GAF Shingle & Accessory Ltd. Warranty for complete coverage and restrictions.6'