Study and Practice on the Performance of Soundproofing for Office Building Wall

Recently, the light materials have been applied in order to reduce the cost of construction. Since its soundproofing is generally poor, it presented a new problem of noise pollution for office building during our noise control projects. Based on “Acoustics - Specifications for the Design of Sound Insulation in Civilian Structure” （GBJ118-88）and taken an office and meeting room for examples in a building, the good soundproofing material was selected and researched and its performance met the noise requirement of various rooms through compared with performance of soundproofing for various wall material. As a result, the noise of office and meeting room reduced from 67.2 dB (A) and 57.3dB(A) to below 55dB(A) and 50dB(A) separately.