PARSIPPANY, N.J. — GAF announced the nationwide launch of Timberline® HDZ shingles, powered by new and innovative LayerLock™ technology.

Combined with all the benefits of one of America’s top-selling shingles, LayerLock technology mechanically fuses the common bond in Timberline HDZ shingles to offer:

  • Up to 99.9% nailing accuracy thanks to its new StrikeZone™ nailing area — up to 600% larger versus Timberline HD® shingles.
  • Up to 30% faster nail fastening during installation versus Timberline HD® shingles.
  • Dual-phase shingle-to-shingle seal with GAF's 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.


“Roofing contractors have been asking for new ways to help accelerate and grow their business, and we’re excited to introduce technology that can make their jobs faster and easier with Timberline HDZ shingles,” said Jim Schnepper, president of GAF. “This represents some of the most exciting innovation in the roofing industry today, backed by the quality and reliability homeowners have trusted for more than 130 years with GAF.”

Roofing contractors can now also offer homeowners a GAF WindProven™ limited wind warranty, the first wind warranty for roofing shingles with no maximum wind speed limit, when installing GAF shingles with LayerLock technology and four qualifying GAF accessories. For information on qualifying GAF roofing accessories, please visit

"We are very confident in extending the wind warranty coverage to basically eliminate the exception that all other wind warranty coverage have," said David Ellis, vice president of marketing at GAF. "Nobody else in the industry offers that level of coverage today on a product warranty."

GAF Timberline HDZ shingles will be on display for a national audience for the first time at the 2020 International Roofing Expo from Feb. 4-6 in Dallas. Conference attendees can visit GAF at booth 4404 and the neighboring GAF CARE Corner for live demonstrations, or go online at to learn more.