19 Prefabricated, partially preassembled, and fully preassembled manufactured housing, namely, mobile homes, and modular homes all not of metal; prefabricated, partially preassembled, and fully preassembled commercial buildings, sheds, green houses, garages, workshops, and storage buildings all not of metal; doors and windows of glass, fiberglass, wood, vinyl, and plastic; non-metal roofing shingles, roof coverings, not of metal, roofing tiles, not of metal; ceramic tiles for tile floors, concrete floors, hardwood flooring, laminate flooring, rubber flooring and vinyl flooring