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When installed with the required combination of four GAF Accessories, Timberline® Shingles with LayerLock ™ Technology are eligible for an industry first: a wind warranty with no maximum wind speed limitation

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The Challenge:

• More than 80% of homes are exposed to blue-green algae, which leaves dark black stains wherever it grows and makes millions of perfectly good roofs look old before their time.
• Many traditional algae-resistant shingles use granules that contain a layer of algae-fighting copper that is released onto the roof when it’s wet. As the roof ages, those granules release less copper, reducing the shingle’s algae resistance.
  
  

The Response: GAF Time-Release Algae-Fighting Technology

• Time-release algae-fighting technology is proprietary to GAF.
• Specially engineered capsules* are infused throughout with thousands of copper microsites.
• These breakthrough capsules release algae-fighting copper efficiently, over time, for long-lasting algae-fighting power.
• Time-release algae-fighting technology allows GAF to offer a 25-year StainGuard Plus™ Algae Protection Limited Warranty on many of their most popular products.

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15-year WindProven™ limited wind warranty on GAF Shingles with LayerLock™ Technology requires the use of GAF Starter Strips, Roof Deck Protection, Ridge Cap Shingles, and Leak Barrier or Attic Ventilation.

25-year StainGuard Plus™ Algae Protection Limited Warranty against blue-green algae discoloration is available only on products sold in packages bearing the StainGuard Plus™ logo. See GAF Shingle & Accessory Limited Warranty for complete coverage and restrictions and qualifying products.

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