Non woven textile roofing underlays; walling underlay; wall linings (not of metal) for building purposes; wall panels (non-metallic); synthetic flooring materials or wall claddings; flooring underlays; structural membranes; walling membranes; coatings, membranes, coverings, felts, roofing felts, linings, all for building or structural purposes; non-metallic building materials having insulating properties; cladding materials (non-metallic); wall claddings (non-metallic); cladding panels (non-metallic) for walls; building materials and construction materials and elements, not of metal; non-metallic structural materials, fabrics, films, membranes, textiles and sheets.