Protection against wind and rain

Under every GAF Shingle you’ll find a long black strip of tacky adhesive, running the length of the shingle, just a few inches from the edge. That’s our proprietary Dura Grip Adhesive. Once your roofer nails the shingle in place the sun’s heat activates the Dura Grip Adhesive, creating a strong bond between the shingle and the layer below it. The activated adhesive also acts as a sealant thathelps prevent water penetration at theleading edge of each row of shingles.

Tested

The strong Dura Grip Adhesive bond helps GAF Shingles pass the industry’s two toughest wind resistance tests: ASTM D3161, Class F, 110 mph, and ASTM D7158, Class H, 150 mph(testing performed under controlled laboratory conditions).

Dura Grip Adhesive plus LayerLock Technology power the WindProven Limited Wind Warranty

Dura Grip Adhesive helps create a strong protective bond on all GAF Shingles. But that’s not all. When it’s combined with our patented LayerLock Technology, it pairs with the smooth microgranule surface of the StrikeZone nailing area for a fast tack. The two innovative technologies work together to create a bond so strong that GAF was able to introduce the industry’s first wind warranty with no maximum windspeed limitation. When installed with the required combination of four qualifying GAF accessories, Timberline® Shingles with LayerLock Technology qualify for the WindProven Limited Wind Warranty.*

LayerLock Technology — mechanically fuses the common bond between overlapping shingle layers  

Up to 99.9% nailing accuracy —the StrikeZone nailing area is so easy to hit that a roofer placed 999out of 1,000 nails correctly in our test1Q

WindProven Limited WindWarranty — when installed with the required combination of GAF Accessories, Timberline HDZ Shingles are eligible for a wind warranty with no maximum windspeed limitation

Dura Grip sealant pairs with the microgranule surface of the StrikeZone nailing area. Then, an asphalt to-asphalt monolithic bond cures for durability, strength, and exceptional wind uplift performance.

25-year StainGuard Plus Algae Protection Limited Warranty against blue-green algae discoloration. 2Proprietary GAF Time-Release Algae -Fighting Technology helps protect your shingles from unsightly stains.

For the best look — use TimberTex Premium Ridge Cap Shingles or TimberCrest  Premium SBS-Modified Ridge Cap Shingles