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Advanced Algae Protection
25 & 30-year limited warranties against blue-green algae discoloration available on qualifying GAF products¹
GAF Advanced Algae Protection Limited Warranties - StainGuard Plus and StainGuard Plus PRO
Protect your customers' new roofs from eave to ridge with algae resistant shingles from GAF. Our GAF shingles, hip and ridge caps, and starter strips come with the 25-Year StainGuard Plus™ Algae Protection Limited Warranty. Or offer your customers the NEW 30-Year StainGuard Plus PRO™ Algae Protection Limited Warranty with new Timberline® UHDZ™ shingles with 10% MORE Time-Release Algae-Fighting technology.
Educational sample available for professionals
1 25 year StainGuard Plus™ Limited Warranty against blue green algae discoloration is available only on products sold in packages bearing the StainGuard Plus™ logo. 30 year StainGuard Plus PRO™ Limited Warranty against blue-green algae discoloration is available only on products sold in packages bearing the StainGuard Plus PRO™ logo. See GAF Shingle and Accessory Limited Warranty for complete coverage and restrictions.
What is blue-green algae?
What causes roof algae to grow?
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Get the tech no one else has with GAF Time-Release Algae-Fighting Technology
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Explore all residential warranties
Get protection you can see on our best-selling shingles - Timberline HDZ® and Timberline® UHDZ™
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Timberline HDZ® shingles
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Timberline® UHDZ™ shingles
Add algae protection from eave to ridge
See warrantiesExplore products with StainGuard Plus™
Add a finishing touch that helps defend against leaks at the hips and ridges, now with a 25-Year StainGuard Plus™ Algae Protection Limited Warranty*.
GAF Timberline® Lifetime Architectural Roofing Shingles - North America’s #1 Selling Shingle, now with a 25-Year StainGuard Plus™ Algae Protection Limited Warranty*.
A wide array of designer styles and colors, to match your home, taste, and budget, now with a 25-Year StainGuard Plus™ Algae Protection Limited Warranty*.
Help guard against shingle blow-offs, now with a 25-Year StainGuard Plus™ Algae Protection Limited Warranty*.