A PREVENTIVE MATERIAL FOR THE FLOOR IMPACT SOUND

摘要

PURPOSE: An interlayer noise prevention material is provided to absorb weight crashing sound and minimize noise and vibration by dispersing and reducing shock energy applied on the bottom of a multistory building. CONSTITUTION: An interlayer noise prevention material comprises a soundproof panel(110), a sound absorbing plate(120), a supporter(130), and a support(140). The sound absorbing plate absorbs sound wave and lets sound wave through an air layer to be removed. The supporter has air layer which stays and removes the sound wave which passed through the sound absorbing plate. The support is projected from the edge of the supporter.