Profile: ABC Supply Co., Inc. specializes in supplying exterior building materials. Our products include roofing, siding and window products. Steep-slope roofing materials are available in asphalt, cedar, concrete and clay, slate, metal and composites. We provide windows and doors to suit any new construction or replacement project, including wood, vinyl & aluminum products. We also provide composite decking & railing products, gutter & rainware products and roofing accessories.