soundproof wall principle:

The acoustic principle of soundproof wall is to leave a cavity between the original wall and soundproof wall, or called a buffer layer, so that the noise can penetrate the space and the distance is weakened, and then the noise is converted into heat energy through the micropores in the sound-absorbing material, thus achieving further reduction. Therefore, it has the function of insulation as well as sound insulation. The acoustic principle of the sound insulation wall is to leave a cavity between the original wall and the sound insulation wall, or a buffer layer, so that the noise can penetrate the space and the distance can be reduced, and then the noise can be converted into heat energy through the micropores in the sound-absorbing material, so as to further reduce it, so it can also have the function of heat preservation while doing sound insulation.

soundproof wall construction:

The thickness of soundproof wall is determined by the noise source. The larger the noise source is, the thickness of soundproof wall will increase appropriately, generally about 5-11 cm. Adding soundproof wall will definitely sacrifice some indoor area. The structure of soundproof wall is generally to leave a cavity of 2-5 cm between the original wall and the light steel keel frame, fill soundproof material in the light steel keel frame, and then cover it with a layer of polymerization-inhibiting Muni soundproof board and add another layer.