19 Foundation materials, not of metal; water-storing foundation, not made of metal; tiles; building materials not of metal, including pipes for optimizing water storage and for landscaping roofs, in particular edge elements, angle profiles, control shafts, roof drains, weir fittings with weir regulators, water pipe profiles, casing pipes, drainage construction elements; building materials not of metal, including pipes for optimizing water storage and for landscaping in gardens; building materials not of metal, including pipes for the optimization of water storage and for landscaping at ground levels; fabrics [building materials] for anchoring plant roots, non-woven fabrics (of textile material) as a protective and separating layer, being building materials; roof flashing, not of metal