Patent ID: 7473457

Claim:
A laminate wood flooring for an under-floor heating system comprising a wood veneer of high pressure resin impregnation laminate (WPL), an adhesive layer and a base, wherein the WPL includes a base-reinforcing layer impregnated in a phenol resin, a resin-impregnated or not impregnated natural veneer layer, a resin-impregnated overlay layer including an overlay paper impregnated in an amino resin selected from urea, urea-melamine or melamine resins, and a urethane primer-treated UV coating layer layered in this order from the bottom, the base-reinforcing layer being made of at least one material selected from a high-density fiberboard, a kraft paper or a shielding paper, the base is back-grooved, and is selected from a polyvinyl chloride resin layer, an oriented strand board (OSB), a high-density fiberboard (HDF) or a waterproof plywood, and the WPL and the base are adhered to each other by the adhesive layer.