QXO, Inc. distributes roofing, waterproofing, and other building products in the United States. It offers asphalt, metal roofing, wood roofing, tile roofing, slate roofing, roofing accessories, and roofing insulation products; vinyl siding, aluminum siding, steel siding, fiber cement siding, wood and composite siding, trim and accessories, and gutters and accessories; built-up roofing, modified roofing, EPDM roofing, PVC roofing, and low-slope metal roofing; as well as air and vapor barriers, fluid-applied products, repair and protection solutions, and membrane waterproofing products.