SOUND INSULATION FLOOR STRUCTURE, SOUND INSULATION FLOOR STRUCTURE OF BUILDING, AND METHOD FOR CONSTRUCTING SOUND INSULATION FLOOR IN BUILDING

摘要

PROBLEM TO BE SOLVED: To improve sound insulation floor performance without increasing a floor thickness on a floor beam or a floor joist and while reducing working man-hours at a construction site.SOLUTION: The present invention provides a sound insulation floor structure in which a sound insulation sheet 13 is laid and attached on the bottom face of a floor backing material 11.SELECTED DRAWING: Figure 1