SOUND-INSULATION MATERIAL FOR FLOOR AND FLOOR STRUCTURE WITH THE MATERIAL

摘要

PROBLEM TO BE SOLVED: To improve the sound-insulation capacity against both light impulsive sounds and heady impulsive sounds without decrease of pleasant walking feelings and fix a finish material at an optional position with nails. SOLUTION: A base plate 9 which can be nailed on the surface side of a synthetic resin formed plate 8 having a static spring constant ranging over 1×10<6> N/m<3> to 5×10<6> N/m<3> , is laid so as to laminate it. A sound-insulation material 4 for floors formed by both materials integrally is laid on lumps 3 of mortar put on a slab 2 while leveling the sound-insulation material. And a finish board 7 is laid on the base plate 9 in the state a rigid substrate material 5 and a flexible substrate material 6 are interposed.