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Why GAF?

GAF is part of the largest roofing and waterproofing business in the world

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Guaranteed Product Availability

Roof - Metal roof

Strong Financial Status

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Highest Quality Products

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Leading Manufacturer In North America 

Timberline HDZ

America’s #1-selling Shingle just got better — again!

Now with GAF Time-Release Algae-Fighting Technology and LayerLock™ Technology, Timberline HDZ® offers everything you can expect from an architectural shingle roof, and more.

Roof shingle - Timberline
Roof shingle - Timberline
Stratus Roofing - Orlando


  • Peel & stick underlayment with blue, synthetic patterned surface for asphalt shingles and metal roof systems
  • Self-seals around fasteners and at vulnerable areas of the roof to protect against ice dams and wind-driven rain
  • Patterned surfacing provides great installer traction 
  • 250oF high-temp rating is compatible with most metal roofing
  • Fiberglass-reinforced construction
  • Eligible component of GAF WindProven and residential enhanced warranties
  • Eligible for Lifetime Limited Warranty