About Timberline HDZ® Shingles
Get advanced roof protection from eave to ridge. The technologies incorporated into Timberline HDZ® shingles are the keys to unlocking both the 15-Year WindProven™ Limited Wind Warranty and the 25-Year StainGuard Plus™ Algae Protection Limited Warranty.
125-year StainGuard Plus™ Algae Protection Limited Warranty against blue-green algae discoloration is available only on products sold in packages bearing the StainGuard Plus™ logo. See GAF Shingle & Accessory Limited Warranty for complete coverage and restrictions.