GAF Timberline Ultra HD 25-sq ft Slate Laminated Architectural Roof Shingles

Timberline® Ultra HD Lifetime Shingles with Dual Shadow Line delivers an incredibly dimensional and textured look never before seen in a Timberline® roof! Dual shadow takes your home’s curb appeal to even greater heights with depth so exceptional, the impact is unmistakable. What’s more, Timberline® uh Shingles also help protect your roof’s beauty by fighting the blue-green algae that leaves dark black stains behind — with our exclusive patent-pending StainGuard® Plus™ time-release technology, it provides long-lasting algae resistance so powerful, it comes with a 25-year limited warranty against blue-green algae discoloration.