Roof system specifications
Download 3-part CSI specifications
View our new Roof Designer's Guide Book for an introduction of essential low-slope roofing concepts — from system components to codes, and sustainability to GAF support services — as well as an overview of GAF products that may be right for your specification.
GAF QuickMeasure™
GAF QuickMeasure™ reports help consultants and designers simplify collaboration and ensure accuracy in estimates and drawing plans by delivering accurate roof measurements, editable 3D rendering, high-resolution imagery and DXF file in under 24 hours.*
*Terms and restrictions apply. Visit the FAQs for more information.
Complex project? Get professional assistance with a custom package
Your regional GAF Design Services team can help put together a custom specification package, quickly and accurately. Start by choosing your roof type below.
Find the documents you need, fast.
With just a few clicks, create and download a custom document file with all the GAF information you need to begin your next roofing project.
Design best practice guides and resource files
Explore healthcare and hospital roofing solutions
GAF offers a wide range of energy efficient, fully integrated roofing systems that can last a long time, helping protect the health facility’s investment. We also offer restoration and recover solutions to help extend roof life, reducing expense while protecting both the facility’s investment and staff/patient satisfaction.
Discover our wide range of roofing systems
GAF offers you a full line of roofing system solutions, including single-ply membrane, asphaltic coatings, and liquid-applied roofing, as well as waterproofing, polyiso insulation, and a complete line of innovative adhesives and accessories.
Promote positive drainage with tapered design
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Tapered Design
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