Non-metallic tiles, including ceramic and concrete based tiles; ridge cappings and ornamental fittings for use in roofing applications and materials for use in fixing and in joining and in sealing tiles, ridges and fittings; roofing, not of metal, incorporating solar cells; Non-metallic building materials including matts, batts, rolls, faced or un-faced, designed for thermal and acoustical insulation and protection against humidity and fire used in the construction of walls, partitions, ceilings, ceiling insulation, floors, roofing insulation, cladding and insulating systems under roofing; bricks; non-metallic building blocks; masonry blocks, works of stone masonry; masonry structures; coatings for finishing or protecting masonry; pavers; mortars; non-metallic roofing materials; roof coverings, not of metal; roof flashing, not of metal; non-metallic tiles including non-metallic wall, floor and roof tiles; non-metallic roof tiles including terracotta and concrete roof tiles; non-metallic guttering; non-metallic cladding elements for walls and roofs; timber and timber products (other than unsawn timber); wood and wood products; composite beams, planks and trusses consisting primarily of non-metallic materials, for building and construction materials; building timber, timber roof tile battens, structural timber and pre-finished timber flooring; non-metallic retaining wall systems and their components; non-metallic building facade systems and their components; concrete; concrete building panels; concrete cladding sheets; preformed building panels made of concrete; precast concrete panels for walling and flooring; fibre cement boards and panels for walling; non-metallic building materials being gutters, fascias, building panels, walling, roofing, lattice, fibre cement sheeting, cladding, roof sheeting, wall and roof interface panels, skylight panels, skylights, drainpipes, joists, beams, staircases, balustrades and parts and accessories for the aforementioned goods included in this class, all the foregoing being goods of non-metallic material; non-metallic transportable buildings; bituminous building products; concretes; structures not of metal including statues and bird baths; non-metallic fences, gates and letter boxes; non-metallic pavers and wall blocks; non-metallic water pipes; rigid pipes (not of metal)