19 Materials, not of metal, namely, clay tiles and clay panels for building and construction purposes; cladding, not of metal, for building; rigid pipes, not of metal, for building; facades of non-metallic materials, namely, panels, wall and roof claddings for construction purposes; clay, natural slate, concrete, ceramic, wood, and vinyl siding; Non-metal cladding for facades for construction purposes; facades of non-metallic materials, namely, panels and wall and roof claddings for building and construction purposes; facade cladding sheets of mortar coated foamed materials for construction purposes; facing panels of non-metallic materials; facade elements of non-metallic materials, namely, panels and wall and roof claddings for construction purposes; non-metallic building facade elements, namely, panels and wall and roof claddings for construction purposes; Construction material, namely, facing bricks; facade construction components of non-metallic materials, namely, fastening anchors and spacer brackets; non-metallic facing tiles for use in buildings; slate, stone slates, tiles of slate, slate slabs; building materials, namely, slate, ceramics, namely, ceramic tiles, ceramic wall and roof tiles, and concrete, brick and wood panels and planks for covering walls; slate, ceramics, namely, glazed ceramic tiles and ceramic roofing tiles, concrete, bricks and wood beams and joists for roofing; roofing, not of metal; roofing slates; pottery stone; ceramic tiles; ceramic wall tiles; ceramic roofing tiles; concrete slabs, concrete panels, blocks of concrete for building and construction purposes; preformed concrete building elements, namely, pre-cast concrete wall forms; soil bricks; soil tiles; brick slips, namely, brick tiles and manufactured brick veneer for use on interior and exterior walls and surfaces; non-metallic roofing materials, namely, felt roof coverings and roof flashing; non-metal cladding panels for roofs; non-metallic roofing plates, namely, non-metal roofing panels; non-metal roofing hips; roofing membranes; stone roofing tiles; wood shingles; plastic soffits for building and construction purposes; non-metallic fabrics for the reinforcement of roofs for building and construction purposes; non-metal wall, wall cavity and roof tiles for use in building; non-metal soffit boards for construction purposes, for building; roofing, not of metal, incorporating photovoltaic cells; non-metal facade claddings, with built-in solar cells, for construction purposes, for building; laths, not of metal