| abstract |
The present invention relates to an impact sound insulation material of floors, comprising a resin foam having a thickness of 15 mm or more and a dynamic stiffness of 0.5 to 10 MN/m 3. The present invention provides the impact sound insulation material and a floor construction method using the same, which has excellent various properties such as interfloor sound proofing, shock absorption, insulation, durability and constructability by optimizing structure and properties of a resin foam included in the impact sound insulation material of floors, and also, if necessary, by forming various functional layers including a substrate sheet on one or each of both surfaces of the foam |