JB Wholesale is a distributor of building and roofing materials and supplies in a variety of styles, colors and types. The company provides services to homeowners and contractors. It works in association with various manufacturers, including Elk Premium Building Products, CertainTeed Corporation, GAF Materials Corporation and TAMKO. The company offers asphalt and wood singles, clay and concrete tiles, skylights, commercial roof systems, fasteners, flashings, gutters, vents, windows and insulation products. It also offers fiber cement and vinyl siding, trims, pipes, fiber glass insulation, manhole covers and gratings, irrigation piping systems, and fencing and railing products. JB Wholesale has been operational for more than 25 years and maintains a location in Torrance, Calif.