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Toitures résidentielles

Les bardeaux GAF offrent une protection éprouvée contre les vents

By Dawn Killough

Le 21 avril 2021

Contractor installing HDZ

Il est bien connu que des vents violents peuvent causer des dommages importants à un toit. However, the use of strong, high-quality roofing materials can protect a home during high winds and other damaging weather events.

GAF's patented LayerLockTM Technology enables excellent adhesion for their shingles, which ultimately contributes to exceptional wind resistence for the entire roof assembly. When installed with the required combination of GAF accessories, GAF shingles with LayerLockTM Technology are eligible for the WindProven limited wind warranty - an industry first limited wind warranty with no maximum wind speed limitation. Cette garantie assure une meilleure protection aux propriétaires qui habitent dans une zone propice aux tempêtes.

Benefits of LayerLockTM Technology

One of the primary benefits of using Timberline® HDZ shingles with LayerLockTM Technology is the wider nailing area. It measures close to 1,81 inches wide, which is the industry's largest nailing area.

Expanding this area allows for quicker shingle installation and helps installers avoid missing the nailing zone. In an independent study, workers were able to install shingles with the StrikeZone nailing area 30 % faster, and with 99,9 % accuracy*. With traditional shingles, missing the nailing zone could lead to performance issues down the road. The nailing area on HDZ shingles increases the likelihood that the nails are placed properly for optimal performance.

The wider nailing zone also benefits contractors during inspections. Brian Lancaster, Director of Sales and Marketing at Stratus Roofing in Orlando, notes that the larger strike zone on HDZ shingles makes it easier for installers to meet the requirements of local jurisdictions and pass their inspections.

According to Lancaster, the biggest selling point for customers in his area is the wind warranty. "As long as we're using the shingles plus four qualifying GAF accessories, then we're able to offer an infinite wind warranty for those first 15 years. And there's no other shingle on the market that does that."

The GAF WindProvenTM Limited Wind Warranty** helps protect homeowners after installation without placing a limit on the speed of the wind in the event of shingle blow offs—a real advantage in hurricane-prone Florida and other regions that face wind storms. Lancaster says that even when it means a slightly higher price, this allows him to provide homeowners with additional protection and peace of mind.

How it Works

GAF LayerLockTM Technology is based on the mechanical fusing of the shingle layers. Lancaster compares the technology to superglue—it's tacky to the touch and extremely sticky. Other brands of shingles use a similar bonding strip, but as Lancaster explains, "This is different, because it literally creates a multilayer effect in a way that's unique from other products."

The two layers of the laminate shingle are fused together during manufacturing, according to GAF Senior Product Manager Dan Witte. This creates a much larger nailing zone for the installer. As the shingles are already connected, these mechanical punches help make the larger nailing area possible.

layerlock diagram

Protection During Wind Events

The WindProvenTM Limited Wind Warranty offers an industry first - a roofing warranty with no maximum wind speed limitation. When you install qualifying GAF shingles with LayerLockTM Technology, plus GAF starter strip shingles, roof deck protection, ridge cap shingles and your choice of leak barrier or attic ventilation, you are automatically eligible for the WindProven Limited Wind Warranty - a 15-year limited warranty providing coverage in the event of shingle blow-offs no matter how fast the wind blows. **

Lancaster noted that they haven't had any hurricanes in their service area during the past year, but have had some high-wind events. They have received no reported issues of any damage of any kind from their clients who had HDZ shingle roofs installed.

Timberline® HDZ shingles with LayerLockTM Technology allow contractors to install shingles faster and with more accuracy. The benefits extend to homeowners, who have greater peace of mind knowing their roof is covered by the GAF WindProvenTM Limited Wind Warranty. When it comes to protecting roofs, it's a winning combination.

To learn even more about the WindProvenTM Limited Wind Warranty and receive a free digital selling kit, visit gaf.com/windproven.


*Résultats basés sur une étude menée par Home Innovation Research Labs, un laboratoire de recherche indépendant, comparant l'installation des bardeaux Timberline HDMD à celle des bardeaux TimberlineMD HDZMC sur un platelage de 16 carrés de toiture en utilisant un modèle de clouage standard à 4 clous dans des conditions de laboratoire contrôlées.  Les résultats réels peuvent varier.

**15-year WindProven™ limited wind warranty on Timberline® HDZ™ Shingles requires the use of GAF starter strips, roof deck protection, ridge cap shingles, and leak barrier or attic ventilation. Voir la Garantie limitée pour système de toiture afin de connaître l'étendue de la protection et les restrictions. Visitez gaf.com/LRS pour connaître les produits GAF admissibles.

About the Author

Dawn Killough est une rédactrice indépendante pour les domaines de la construction, des finances et de la comptabilité. Elle est l'auteure d'un livre électronique sur la construction verte et écrit pour des sites Web sur la technologie de la construction et les bâtiments verts. Elle vit à Salem en Oregon avec son époux et quatre chats.

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