The roof of the building where my family lives is not soundproof at all, and the sound of moving stools on it is very loud and annoying. Excuse me, what material is used to make the roof beautiful and

The roof of the building where my family lives is not soundproof at all, and the sound of moving stools on it is very loud and annoying. Excuse me, what material is used to make the roof beautiful and sound-proof? 1. It is not a simple matter to control the floor noise of residents who have already checked in. Many people think that it is enough to make a sound-proof ceiling at the top, but in fact, the sound-proof ceiling can only appropriately reduce some sounds, and it will not completely solve the floor noise. The most direct way to solve this problem is to soundproof the upstairs floor before moving in. This is the most effective, economical and thorough method. However, even the most effective and direct, upstairs is not your own house after all, and communication is relatively difficult.

Another solution is to make sound insulation in your own home, and all the walls should be made, which is relatively expensive. It's best to communicate with neighbors, put some soft and elastic cushions at the bottom of furniture that moves frequently, such as tables and stools, and try not to wear hard shoes when walking.

Sound insulation material:

1. Sound insulation material refers to a kind of material, component or structure that can block the sound transmission or weaken the transmitted sound energy, and is characterized by large mass and high density, such as steel plate, lead plate, concrete wall and brick wall. Generally used in offices or KTV.

2. Sound insulation refers to the isolation, partition and separation of sound or noise through something, so sound insulation materials are needed. The decibel number related to the incident sound energy on one side and the transmitted sound energy on the other side of a material is the sound insulation of the material, which is usually expressed by the symbol R(dB).

3. Sound insulation materials or components will produce different sound insulation effects due to different use occasions and different testing methods. For sound insulation materials, in order to weaken the transmitted sound energy and block the spread of sound, they cannot be porous, loose and breathable like sound absorption materials. On the contrary, their materials should be heavy and dense, such as steel plates, lead plates, brick walls and other materials.

4. The sound insulation material shall be dense without pores and gaps; It's very heavy. Because this kind of sound insulation material is dense, it is difficult to absorb and transmit sound energy, but the reflected energy is strong, so the sound absorption performance is poor. The sound insulation material can attenuate the transmitted sound energy to 10-3 ~ 10-4 times or less of the incident sound energy. For the convenience of expression, the sound insulation is expressed in decibels.

There are many small holes in the sound-absorbing material. Sound waves will be reflected after entering, so the sound will become smaller after the sound waves are superimposed. Therefore, sound-absorbing materials are used to prevent echoes, and are generally used in places where echoes are easy to appear, such as photo studios and cinemas.

6. Sound insulation materials are used to isolate sounds and are generally used in places with high privacy such as bedrooms.

References:

Baidu encyclopedia-sound insulation material