To improve a feeling of walking while ensuring sound-insulating properties, and to manufacture sound-insulating floor structure for construction at low cost by interposing a leveling material onto a concrete slab and successively installing a semirigid synthetic-resin foamed board and a sound-insulating woody floor in a laminated shape.
A leveling material 2 is composed of adhesives and mortar dumplings such as cement. A semirigid synthetic-resin foam consisting of a polystyrene foam, a polyethylene foam, a polypropylene foam, etc., is used as a raw material constituting a floor foundation material 3, and compressive strength is set in 0.5-5.0 kg/cm2. A sound-insulating woody floor, in which a synthetic-resin foam 5b with a projection is laminated on the rear of plywood 5a, is employed as a finishing material 5. A plurality of the leveling materials 2 are arranged onto the top face of a concrete slab 1 insularly or in a ridge shape, and a plurality of the floor foundation materials 3 are set successively while being leveled. The finishing material 5 is laid and fixed through adhesives 4 and executed. Accordingly, sufficient impact sound-insulating properties are ensured, and the deterioration of a feeling of walking can be prevented.
MATSUYOSHI HIROYOSHI
MATSUMURA YOSHIO
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