AN IMPACT SOUND INSULATION MATERIAL OF FLOORS AND A FLOOR EXECUTION METHOD USING THE SAME

摘要

PURPOSE: An inter-layer sound insulator and a floor construction method using the same are provided to increase permeability and the tear strength of both sides of a sound absorption member. CONSTITUTION: An inter-layer sound insulator comprises a sound absorption member(10) and a waterproof member(20). The waterproof member is created in one side or both sides of the sound-insulating member. The waterproof member has tear strength of 110 kg / cm^2 ~ 190 kg / cm^2. The sound-insulating member is an open-cell included resin foaming form with 20% open-cell rate. The resin foaming form has the thickness of 15 mm. The waterproof member has the thickness of 0.1 mm ~ 10 mm. The waterproof member seals the sound-insulating member.