| 摘要 |
An interlayer noise reduction material of a building is provided to restrain the occurrence of interlayer noise to the utmost and to fulfill waterproofing and moisture-proofing functions more excellently by forming in three folds, thereby absorbing interlayer noise more reliably. An interlayer noise reduction material(100) of a building comprises a first member(110) made of polyethylene material, a second member(120) attached to one side of the first member, provided with an air layer and made of vinyl material, and a third member(130) attached to one side of the second member, and piled up between a concrete bottom and an interior flooring material, wherein the lengths of the first member, the second member and the third member are same, but the widths of the second member and the third member are longer than the width of the first member. |
