19 Residential and commercial non-metallic residential and commercial building materials, namely, asphalt roof coatings, asphalt roofing paper, asphalt sealant, asphalted felts, bitumen based sealants for roofing, bituminous roof coatings, ceiling panels, door casings, door frames, door panels, door units, doors, felt roof coverings, felts, fiberboard, wall panels, pavers, plywood, roofing, roofing cement, roofing hips, roofing membranes, tar-based sealants for roofing, roofing slates, roofing tiles, vinyl siding, wood siding, skylights, slate, sliding doors, suspended ceiling systems comprising panels, paving tiles, wall boards, window casements, window frames, windows and sash fasteners for windows