APP Modified Bitumen Membranes

Atactic Polypropylene (APP) polymer modified bitumen roofing membranes offer multi-ply durability.

Commercial support teams

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Design Services

Product and tech support, custom solutions, code assistance, and more 877-423-7663 Option 4, then Option 3
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Tapered Design

Regionalized Design Specialists who provide tapered solutions. Email TDG@gaf.com
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Commercial Customer Care

Talk to a professional who knows your regions and is dedicated to serving your business needs.
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Building & Roofing Science

Book a virtual meeting to get free advice on your project-specific questions, code conundrums, and impossible details.
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Resources for every professional

Contractor working on a commercial roof

Contractors

We’re building new plants for greater capacity, and better systems for faster response and greater visibility.
Contractor Resources
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Architects & Design Pros

We’re building better, faster, more accurate access to the information you need.
Design Resources
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Property managers & owners

Whether you manage one property or many, we’re building the products and programs you need to reroof, restore, or maintain your investment.
Building Resources

Additional Support

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CARE Training

Our Low Slope training features techniques that save you time and money while building customer satisfaction.
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