19 Non-metal wall claddings for building; Non-metal curtain walls; Nonmetal door parts for buildings, namely, adjusters for adjusting the height of a door, floor boards, columns, beams, paneling boards, sills, sleepers, backings for ceilings or walls, stiles, rails and ceiling boards; Prefabricated non-metal walls; Waterproofing system comprised of non-metal wall system elements designed to prevent entry of moisture and to prevent growth of mold