Introducing our patented LayerLock™ Technology
Get up to 99.9% nailing accuracy


¿Habla español?


Products featuring LayerLock™ Technology

Timberline® HDZ™
North America’s #1-selling shingle gives you value and performance in a genuine wood-shake look.
layerlock-productAH
Timberline® AH
The architecturally stylish, yet practically priced, high-performance asphaltic roofing shingle.
Timberline HDZ® Reflector Series™
Timberline HDZ® Reflector Series shingles have been rated by the Cool Roof Rating Council (CRRC) for use in Title 24 projects.
Timberline HDZ® Reflector Series Plus™
Timberline HDZ® Reflector Series Plus Shingles meet Green Building Standards Code of Los Angeles County for residential buildings.

Engineered to Protect

An Industry First

Only one roofing system qualifies for WindProven — the wind warranty with no maximum wind speed limitation. Just install GAF Shingles with LayerLock technology, four required GAF accessory products.

Peculiar Phenomenon - Pulling Shingles Off of Plywood | Dura Grip Sealant on Timberline HDZ Shingles
Remember the last time this happened on one of your roofs? Yeah, we couldn’t either and GAF is on millions of rooftops so I think we would have heard something about this rather peculiar phenomenon. So why do some shingle manufacturers make such a fuss about nails, nail placement and reinforcement tapes while completely ignoring the critical role that sealant plays in wind performance? Well, instead of a benchtop sales demo we went to this highly regarded hurricane research facility to show you it’s not all about the nails. Dura Grip™: available on all GAF Shingles, including our new Timberline® HDZ™ Shingles. Learn more at gaf.com/layerlock
Is GAF Timberline HDZ Faster [and More Accurate] to Install | GAF Roofing
See how Timberline® HDZ™ Shingles were fastened to the roof deck with 30% faster nail fastening! Learn more at: https://www.gaf.com/timberline-hdz
Approved by contractors

Cody Dykes of Superior Roofing Reviews Timberline HDZ Shingles | GAF Roofing
In this testimonial of Timberline HDZ Shingles Cody Dykes of Superior Roofing shares "It is almost impossible to miss this new line". Timberline HDZ shingles are powered by new and innovative LayerLock™ technology. Combined with all the benefits of America’s top-selling shingle, LayerLock technology mechanically fuses the common bond in Timberline HDZ shingles to offer: - Up to 99.9% nailing accuracy thanks to our new StrikeZone nailing area - up to 600% larger v. Timberline HD shingles - Up to 30% faster nail fastening during installation v. Timberline HD shingles - Dual-phase shingle-to-shingle seal with our Dura Grip sealant and StrikeZone nailing area, and an asphalt-to-asphalt monolithic bond for durability, strength and powerful wind uplift performance - Compatibility with Timberline HD roofing shingles Learn More about LayerLock Technology: gaf.com/layerlock
Nick Branon of Hero Roofing Reviews Timberline HDZ Shingles | GAF Roofing
In this testimonial of Timberline HDZ Shingles Nick Branon of Hero Roofing shares "If someone can't hit the StrikeZone, they don't belong on a roof." Timberline HDZ shingles are powered by new and innovative LayerLock™ technology. Combined with all the benefits of America’s top-selling shingle, LayerLock technology mechanically fuses the common bond in Timberline HDZ shingles to offer: - Up to 99.9% nailing accuracy thanks to our new StrikeZone nailing area - up to 600% larger v. Timberline HD shingles - Up to 30% faster nail fastening during installation v. Timberline HD shingles - Dual-phase shingle-to-shingle seal with our Dura Grip sealant and StrikeZone nailing area, and an asphalt-to-asphalt monolithic bond for durability, strength and powerful wind uplift performance - Compatibility with Timberline HD roofing shingles Learn More about LayerLock Technology gaf.com/layerlock
Learn how to install Timberline® HDZ™ Shingles

Installation Video

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

Download Complete Instructions

Download and save our full installation instructions for Timberline® HDZ

Additional Resources

Timberline HDZ Specification Sheet
Timberline HDZ Sell Sheet
LayerLock Specification Sheet
Windproven Sell Sheet


Wherever you're going, get there with GAF

Check out our exclusive programs designed to help you grow your business.