19 Plastic building materials, namely, poles, bollards and boards made of plastic, non-metal decks comprised primarily of plastic or recycled plastic, plastic tiles, non-metal floors comprised primarily of plastic or recycled plastic, non-metal railings and façade panels, geotextiles, namely fabric and sheeting for nurseries, greenhouses and landscaping, plastic landscape edgings and structural and architectural members formed of recycled plastic, non-metal greenhouse frames, pre-fabricated greenhouse frames not of metal, modular greenhouses not of metal, non-metal plant cages and modular non-metal structures with flexible covers for agricultural, commercial or industrial storage and non metal shelter structures, other than tents; construction elements of plastic, namely, extruded plastic in the form of plastic trim; films of plastic for use in building and construction of greenhouses and hoop greenhouses, and non-metal shelter structures, other than tents; reinforcing materials not of metal for building purposes; roofing materials of plastic, namely, plastic sheets, plastic film and plastic tiles; roofing membranes: damp proof membranes of synthetic plastic materials for roofing, floors and walls; plastic materials for applications in agriculture and horticulture, namely, non-metal greenhouse frames, pre-fabricated greenhouse frames not of metal, modular greenhouses not of metal, geotextiles of polypropolene sheeting for nurseries, greenhouses and landscaping, non-metal plant cages and modular non-metal structures with flexible covers for agricultural, commercial or industrial storage and non metal shelter structures, other than tents