See how LayerLock Technology works
Only from GAF
The new LayerLock™ Technology powers the industry's widest nailing zone and the first wind warranty with no maximum wind speed limitation.
Engineered For the Best Possible Installation
Take a peek inside: see a CT Scan of an actual shingle to see how LayerLock™ Technology fuses the common bond.
Proprietary technology mechanically fuses the common bond between overlapping shingle layers.
Our legendary DuraGrip™ sealant pairs with the smooth microgranule surface of the StrikeZone™ nailing area for fast tack.
Up to 99.9% nailing accuracy
The StrikeZone™ nailing area is so easy to hit that a roofer placed 999 out of 1,000 nails correctly in our tests.**
Up to 600% larger nailing area
LayerLock™ Technology mechanically fuses the common bond between overlapping shingle layers. The added strength at the common bond powers the StrikeZone™ — the industry's widest nailing area.†
Clear Nailing Target
Nails can be placed anywhere in the StrikeZone™ Nailing Area — on or between the lines!
Note: the first course of shingles installed should always be nailed on the lower nail zone line.‡
Up to 30% faster nail fastening
Thanks to the industry's largest nail zone.**
Time motion study
In an independent research study, Timberline® HDZ™ Shingles were fastened to the roof deck with 30% faster nail fastening* vs. our standard architectural shingles**
All nails placed within the StrikeZone™ Nailing Area penetrate the shingle below for secondary fastening.
The top paint line of the StrikeZone™ Nailing Area acts as a visual indicator for faster shingle alignment with the previous course; the top line lines up with the top of the shingle below.
No Max Wind Speed Limitation
When installed with the required combination of GAF Accessories, Shingles with LayerLock™ Technology are eligible for an industry first: a wind warranty with no maximum wind speed limitation!*
No Max Wind Speed Limitation
Then, an asphalt-to-asphalt monolithic bond cures for durability, strength, and exceptional wind uplift performance.
Our legendary Dura Grip™ sealant pairs with the smooth microgranule surface of the StrikeZone™ Nailing Area for fast tack.
*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).