In the context of roofing, GAF stands for General Aniline and Film Corporation originally, but today it is the brand name of GAF Materials Corporation, which is North America's largest roofing and waterproofing manufacturer headquartered in Parsippany, New Jersey. GAF was founded in 1886 as the Standard Paint Company and became General Aniline and Film after World War II when its German-owned parent IG Farben assets were seized by the US government. Today, GAF does not officially use the full form, it is simply branded as GAF, similar to how KFC no longer emphasizes Kentucky Fried Chicken. In roofing, GAF is known for its Timberline series of architectural asphalt shingles, which are the best-selling shingles in North America, as well as its roofing systems including underlayments like Deck-Armor, ridge vents, and leak barriers. GAF offers different shingle lines including Timberline HDZ, Timberline UHDZ, Timberline NS, and designer lines like Camelot and Woodland. The company operates large manufacturing plants across the US and has a contractor certification program called GAF Master Elite that certifies roofing contractors who can offer enhanced warranties like the Golden Pledge warranty. So in roofing, when someone says GAF, they mean the roofing manufacturer that makes shingles and roofing materials, not an acronym with a current spelled-out meaning in daily use.
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