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Founded in 1982, ABC Supply is one of the largest distributors of exterior building products for residential and commercial properties. It specializes in roofing, siding, doors and windows, decking, tools and equipment, skylights and cedar products. The company offers products in various materials, such as wood, vinyl, aluminum, asphalt, clay, slate, metal, fiber cement and steel. It is a distributor of CertainTeed, DaVinci, DECRA, Follansbee, GAF-Elk, Atlas, SilverLine and ThermaTrue products. Additionally, it is a distributor of Velux skylights, Ellison doors and windows, Trex decking and railing systems and Nailite siding products, as well as roofing accessories, such as fasteners, plates, tapes, and moisture and fire barriers. The company offers various community services, such as after-school mentoring and fundraising. ABC Supply has more than 350 centers in over 40 U.S. states and maintains one of its locations in Glendale, Ariz.