Non-metal shelter structures; Non-metallic transportable buildings; Prefabricated non-metal buildings; Construction materials in the nature of non-metal composite panels; Floor panels not of metal; Modular greenhouses not of metal; Non-metal building materials, namely, plastic-core panels and plastic panel connectors; Non-metal floors comprised primarily of plastic for building floors in extreme weather locations; Non-metal partitions for building; Pre-fabricated greenhouses not of metal