Roof gutters, not of metal; Roof flashing, not of metal; Gutter pipes, not of metal; Drain pipes, not of metal; Downspouts, not of metal; Non-metal decks; Non-metal brackets for gutters; Plastic conduit for drainage; Rain gutters, not of metal; Plastic water conduits for roofs; Secondary moisture drainage system consisting of non-metal troughs and collection boxes; Non-metal sump reservoirs and drain sold as a unit for use in the construction of basement waterproofing systems; Nonmetallic con...