GAF Enhances Timberline American Harvest Shingles with StainGuard Plus and LayerLock

Worthington home new roof

GAF announces the latest expansion of its residential product line with the newly enhanced Timberline® American Harvest shingles (Timberline AH)

This line now features proprietary GAF StainGuard Plus and LayerLock technologies across its range of distinct color blends.


GAF Timberline American Harvest shingles being installedRoofing contractors, like Muth & Company Roofing in Columbus, OH, may now offer GAF’s most feature-rich residential shingle to homeowners.

These features include time-release algae-fighting technology, fast and accurate installation with LayerLock technology, which is also eligible for a WindProven limited wind warranty when installed with four qualifying accessories.



“We are leading the industry forward with new and advanced technologies that aim to provide the highest level of comprehensive protection for our customers,” said David Ellis, GAF Vice President of Residential Marketing.

“These shingles are fast and easy to install, while also offering long-term performance benefits that help protect roofs against blue-green algae discoloration and wind.”

Compared to more traditional copper-coated granules, StainGuard Plus time-release technology delivers long-lasting algae fighting power.  This is perfect for Columbus, OH humid weather conditions. Plus, this line offers a 25-year limited warranty against blue-green algae discoloration. This is due to its specially engineered capsules infused with copper microsites.

With a focus on engineering for fast and accurate installation, GAF Timberline AH shingles boast the industry’s largest nailing area through LayerLock technology. New Timberline AH shingles offer up to 99.9 percent nailing accuracy and up to 30 percent faster nail fastening during installation v. Timberline HD® shingles.

Please visit Muth & Company Roofing, your local roofing contractor, for more information.  Or call them at 614-882-0900.


GAF is North America’s largest roofing and waterproofing manufacturer and a part of Standard Industries, a global company focused on building materials. GAF’s products include a comprehensive portfolio of roofing and waterproofing solutions. This includes residential and commercial properties as well as for civil engineering applications.

The full GAF offering is available through an extensive national network of independent certified contractors. GAF continues to be a leader in quality and offers comprehensive warranty protection on its products and systems. GAF continually commits to empower its people to deliver advanced quality and purposeful innovation. Learn more on their website.


SOURCE GAF – PARSIPPANY, N.J.June 25, 2020 /PRNewswire/ —

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