In the renovation of high-end commercial buildings (such as star hotels, high-end entertainment venues, hospitals, etc.) and some family homes, there are often problems with walls and ceilings that need to be separated, such as conference rooms, offices, and bedroom walls. Body and ceiling ceiling sound insulation. In order to significantly improve the sound insulation of the wall and the ceiling, it is difficult to achieve the desired effect by relying only on ordinary building materials. For example, a 12 mm thick gypsum board is nailed on both sides of a 100 light steel keel. The keel cavity is filled with rock wool, and the wall sound insulation effect is about 35 decibels. If two gypsum boards are nailed on both sides, the wall sound insulation effect is improved. It is about 39 decibels.
If you want to increase the sound insulation of the wall to more than 50 decibels, you need to install a lot of gypsum board on both sides of the keel (it is actually difficult to install many pieces), so use ordinary building materials (such as gypsum board) for wall insulation, not only raw materials. The waste is large, the wall is thick (loss of valuable living space), the construction period is long, and the comprehensive construction cost is high. Therefore, high-performance acoustic panels (or materials) are often used in places where sound insulation is very high.
However, the purchase of acoustic panels is not an easy task for most people. Because on the one hand, most people do not have professional acoustic knowledge, and it is possible to purchase acoustic boards for the first time. I don't know how to separate the performance of the sound insulation board. It is not clear what should be paid attention to during the purchase process. On the other hand, choose In the process of purchasing the sound insulation board, it is difficult to judge the sound insulation performance of the sound insulation board by using ordinary methods (such as naked eye observation, hand touch) and experience. The key is that the sound insulation board must be built into the wall before it can feel or measure the level of sound insulation. If the sound insulation of the wall is not as expected after the sound insulation wall is built, it is almost impossible for you to remove the wall panel and return it to the manufacturer. In this case, either accept the current situation of unsatisfactory wall sound insulation or take remedial measures. Therefore, in order to avoid wasting your money, time and effort, it is very necessary for you to properly master some basic knowledge of buying soundproof boards.
Nanjing Zhilu New Building Materials Co., Ltd. is a high-tech enterprise founded by Dr. Guoguo, specializing in the development of high-performance sound insulation materials and energy-saving building materials technology. In order to help consumers correctly purchase the sound insulation board, Nanjing Zhi Green specially prepared this sound insulation board purchase guide, hoping to help consumers.
In general, when purchasing a baffle, you should pay attention to the following items.
1. Sound insulation target of the wall
Whether it is a new soundproof wall or an old wall sound insulation renovation, a relatively clear sound insulation requirement is required, that is, how many decibels the wall sound insulation needs to reach, and then the economical and appropriate sound insulation is selected according to the wall sound insulation target. Board and develop a sound insulation solution for the wall.
China's "GB/J-118 Noise Specifications for Civil Buildings", which was enacted in 1988, stipulates that the general standard for sound insulation of ordinary civil buildings is 45 decibels. However, this standard was formulated more than 20 years ago. With the popularity of home theaters, large numbers of home appliances and family cars, and ubiquitous production, living and commercial noise, the noise pollution levels faced by modern people have become more serious. Tsinghua University Institute of Building Acoustics found through market research that if the sound insulation of the wall is 45 decibels, at least 50% of the people will be dissatisfied; if the wall sound insulation is increased to 50 decibels, probably less than 10% Will not be satisfied. Therefore, for a general sound insulation wall, the sound insulation target can be set at about 50 decibels; of course, for a special place, such as a studio, studio, high-grade KTV, etc., the sound insulation of the wall may need to reach 60 decibels or the above.
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