Class 19 includes mainly materials, not of metal, for building and construction. This Class includes, in particular: • semi-worked woods for use in building, for example, beams, planks, panels • wood veneers • building glass, for example, glass tiles, insulating glass for building, safety glass • glass granules for marking out roads • granite, marble, gravel • terra-cotta for use as a building material • roofing, not of metal, incorporating photovoltaic cells • gravestones and tombs, not of metal • statues, busts and works of art of stone, concrete or marble • letter boxes of masonry • geotextiles • coatings being building materials • scaffolding, not of metal • transportable buildings or structures, not of metal, for example, aquaria, aviaries, flagpoles, porches, swimming pools This Class does not include, in particular: • cement preservatives, cement-waterproofing preparations (Cl. 1) • fireproofing preparations (Cl. 1) • wood preservatives (Cl. 2) • oils for releasing form work for building (Cl. 4) • letter boxes of metal (Cl. 6) and not of metal or masonry (Cl. 20) • statues, busts and works of art of common metal (Cl. 6), of precious metal (Cl. 14), of wood, wax, plaster or plastic (Cl. 20), of porcelain, ceramic, earthenware, terra-cotta or glass (Cl. 21) • certain pipes, not of metal, not for building, for example, pipes being parts of sanitary installations (Cl. 11), flexible pipes, tubes and hoses, not of metal (Cl. 17) • substances for insulating buildings against moisture (Cl. 17) • glass for vehicle windows (semi-finished product) (Cl. 21) • birdcages (Cl. 21) • mats and matting, linoleum and other materials for covering existing floors (Cl. 27) • unsawn or undressed timber (Cl. 31)