19 Non-metallic building materials with vibration and noise insulating properties, in particular for building construction, namely, raised floors, suspended floors with elastomer bearings, acoustic floors, floating floors and floating floor deck systems; hanging systems, not of metal, for ceilings and walls and floors; suspended floors, not of metal; window frames not of metal for building; non-metallic blocks for use in flooring construction, namely, blocks of wood, rubber, cork or elastomer; non-metallic structural support joists for the construction of floors; veneer for floors; noise barriers made of wood; wooden flooring; non-metallic materials for floors, namely, cork, OSB, plywood, fiberboard or cement board subfloor, joists, floor panels, supports for raised floors; modular plastic decking to serve as a ground cover; non-metal floor panels; flooring underlayments; rubber crumb surfacing for use in play areas; rubber floor tiles; rubber flooring; tiles, non-metallic, for floors; floors, not of metal; duckboards, not of metal; non-metallic floor boards; plastic floorboards; paving slabs, not of metal; non-metallic flooring tiles; athletic flooring, not of metal; non-metallic sports floors; subfloors, not of metal; parquet flooring made of cork; flooring underlay made of cork; agglomerated cork for building