FREE FLOATING SUB-FLOOR THERMOPLASTIC TILE

A sub-floor tile is provided for use in a modular sub-floor tile system. The sub-floor tile has an upper surface and a lower surface made from one prefabricated, durable, water resistant, mould and mildew growth resistant thermoplastic elastomer with acoustic deadening properties. The lower surface has a series of projections extending away from the sub-floor tile and located adjacent to an underlying surface, such as concrete, when the sub-floor tile is in use. The projections create a space between the sub-floor tile and underlying surface creating a moisture barrier and increased air flow that also permits moisture drainage. This also permits a thermal break between the underlying surface and the overlying flooring surface, such as carpet, laminate, or vinyl. 1. A sub-floor tile which permits moisture drainage , air flow and prevents vapour condensation , the sub-floor tile comprising: an upper surface; a lower surface , the upper and lower surface comprising a prefabricated , durable , water resistant , mould and mildew growth resistant , acoustic deadening material having a plurality of frustoconical projections extending away from the upper surface to support the upper surface above an underlying surface , to protect the upper surface from water , to permit free drainage of water about the projections and between the sub-floor tile and the underlying surface , to permit a thermal break between the underlying surface and the overlying flooring surface , and to create a moisture barrier and increased air flow between the underlying surface and the overlying flooring surface; and said upper surface having tongues located on two adjacent edges and grooves located on two adjacent edges for connecting the sub-floor tile to an adjacent sub-floor tile comprising corresponding tongues and corresponding grooves to prevent movement therebetween.2. The sub-floor tile according to claim 1 , wherein the sub-floor tile is made from a thermoplastic elastomer.3. The sub-floor ...