
Introducing our patented LayerLock™ Technology
Powering the industry's largest nailing area
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Get your free sample of Timberline® HDZ™ Shingles Request Sample
LayerLock™ Technology
Accuracy
Speed
Windproven
*15-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. Visit gaf.com/LRS for qualifying GAF products.
**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.
†Compared to Timberline® HD™ Shingles.
‡Not applicable on mansard roofs (21:12 and above).
**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.
†Compared to Timberline® HD™ Shingles.
‡Not applicable on mansard roofs (21:12 and above).

Patented LayerLock™ Technology mechanically fuses the common bond
LayerLock™ Technology mechanically fuses the common bond between overlapping shingle layers. The added strength at the common bond powers the StrikeZone™ nailing area — the industry’s widest nail zone.
Want to learn more about Timberline® HDZ™ Shingles? CONNECT wITH YOUR TM
** 15-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. Visit gaf.com/LRS for qualifying GAF products.
† 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.
‡ To be mixed on one roof, Timberline® HDZ™ Shingles and Timberline HD® Shingles must have matching 6-digit codes found on the end of the bundle. When mixed, always use Timberline HD® installation instructions.
† 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.
‡ To be mixed on one roof, Timberline® HDZ™ Shingles and Timberline HD® Shingles must have matching 6-digit codes found on the end of the bundle. When mixed, always use Timberline HD® installation instructions.
Get your free sample of Timberline® HDZ™ Shingles Request Sample


“It is almost impossible to miss this new nail line.”
Cody Dykes
Superior Roofing
“If someone can’t hit the StrikeZone™, they don’t belong on a roof.”
Nick Brannon
Hero Roofing
The contractors featured are members of the GAF Master Elite or GAF Certified Contractor program and may receive benefits, such as loyalty rewards points and discounts on marketing tools for selling GAF products. Members are independent contractors and not employees or agents of GAF. GAF does not endorse the services provided by any contractor.
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
Products featuring LayerLock™ Technology

Timberline® HDZ™
North America’s #1-selling shingle gives you value and performance in a genuine wood-shake look.

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.
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