Provides up to 99.9% nailing accuracy

The GAF StrikeZone® nailing area is so easy to hit that a roofer placed 999 out of 1,000 nails correctly in our test.1

1Results based on study conducted by Home Innovation Research Labs, an independent research lab, comparing installation of Timberline HD® Shingles to Timberline HDZ® Shingles on a 16-square roof deck using standard 4-nail nailing pattern under controlled laboratory conditions. Actual results may vary.

Layerlock® Technology is featured on North America’s #1 selling shingle – Timberline HDZ®

Timberline HDZ® shingles give you value and performance in a genuine wood-shake look.

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Other shingles featuring LayerLock® Technology

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Timberline® HDZ™

America’s #1-selling roof keeps getting better, now with LayerLock® Technology and more.

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Timberline® UHDZ™

For a combination of beauty and benefits that goes beyond any GAF shingle available to date.

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Timberline® AS II

All the beauty of Timberline® Shingles combined with UL 2218 Class 4 Impact Resistance.

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Timberline® CS

Highly reflective shingles that can help to reduce temperatures in your attic, and help save on air-conditioning costs.

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Timberline® HDZ™ RS

Timberline® HDZ™ Reflector Series shingles have been rated by the Cool Roof Rating Council (CRRC) for use in Title 24 projects.

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Timberline® HDZ™ RS+

Timberline® HDZ™ RS+ Shingles meet the Green Building Standards Code of Los Angeles County for residential buildings.

“It is almost impossible to miss this new line … my workers love it.”

– Cody Dykes, Superior Roofing

Learn how to install Timberline HDZ® Shingles

Count on training from the Center for the Advancement of Roofing Excellence to fit your goals and the way you prefer to learn.

Roof installation overview

See for yourself how Timberline HDZ® is accuracy made easy with this brief installation video from GAF CARE.

Engineered to protect

GAF is always working on new and better ways to protect homes. We are committed to making our products provides better, stronger, safer and in more sustainable ways that are faster and easier to install.

Save time and labor with up to 30% faster nail fastening

Results based on study conducted by Home Innovation Research Labs, an independent research lab, comparing installation of Timberline HD® Shingles to Timberline HDZ® Shingles on a 16- square roof deck using standard 4-nail nailing pattern under controlled laboratory conditions. Actual results may vary.

1 Results based on study conducted by Home Innovation Research Labs, an independent research lab, comparing installation of Timberline HD® Shingles to Timberline HDZ® Shingles on a 16-square roof deck using standard 4-nail nailing pattern under controlled laboratory conditions. Actual results may vary.

More ways GAF helps protect your roof

Long-lasting algae fighting power

GAF Time-Release Algae Fighting Technology is algae resistance so powerful it allows us to offer 25-year and 30 year Limited warranties against blue-green algae discoloration on qualifying GAF products.2

Wind Coverage

Only GAF shingles with LayerLock® Technology qualify for a the WindProven Limited Wind Warranty with no maximum wind speed limitation when installed with the required combination of four qualifying GAF accessories.3

Dura Grip™ Advanced Sealant

Dura Grip™ Adhesive helps create a strong protective bond to help reduce the risk of shingle blow-offs. When combined with our patented LayerLock® Technology, it pairs with the smooth microgranule surface of the StrikeZone™ nailing area for a fast tack.

225-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.

315-year WindProven™ limited wind warranty on Timberline® Shingles with LayerLock® Technology requires the use of GAF starter strips, roof deck protection, ridge cap shingles, and leak barrier or attic ventilation. See GAF Roofing System Limited Warranty for complete coverage and restrictions.