Non-metallic building materials, namely, synthetic, hardwood, and PVC floor and wall surfacing; surfacings, not of metal, namely, sealer coatings for buildings sold as integral components of molded resin for construction purposes, fireproof cement coatings for buildings, asphalt roof coatings for buildings; building materials, essentially consisting of plastic and plastic composites, included in this class, namely, multilayer panels of plastic for use in buildings