19 Non-metal roofs, namely loose laid and ballasted roofs, totally adhered roofs, plate bonded roofs, batten adhered roofs, and non-penetrating batten adhered roofs; roofing system materials for non-penetrating adhered roofs comprised of non-metal roofing, and also consisting of battens, lap sealants, membranes, adhesives, tapes, termination bars, seam tape primer, pipe boots, caulking, water cut-off mastic, pitch pocket filler, flashing membranes, membrane cleaner, drain inserts, vents, fasteners, tools, and accessories; flashing fabric for building; flashing cement