When you are ready to install a soundproof window and you do not know how to start, we recommend that you do the following:
1. The sound insulation inspection report that the manufacturer needs to have a qualified unit to inspect, the testing units in Beijing mainly include the Construction Physical Testing Center of the Ministry of Construction, the Construction Physics Monitoring Center of Tsinghua University, the Beijing Institute of Labor Protection, and the Beijing Door and Window Hardware Testing Center. unit. Understand the sound insulation of doors and windows, according to their own economic conditions and actual needs, the higher the general sound insulation, the higher the price of sound insulation window, but the sound insulation should not be less than 30dB. If you are in a serious environmental noise pollution or have a high demand for the indoor environment, you should also pay attention to the low-frequency sound insulation of doors and windows and the sound insulation of the lowest sound insulation frequency. Because the traffic noise energy is concentrated at low frequencies, the low-frequency sound insulation performance of doors and windows is Its weakest link will inevitably cause low-frequency leakage and eventually affect sound insulation.
#figure 1
2. Soundproofing windows are different from ordinary doors and windows from material selection to craftsmanship. The glass, sealing materials and profiles used in high sound insulation soundproof windows are determined through repeated tests and tests. Manufacturers should have production separation. Acoustic window technology and engineering performance, if necessary, to visit each other's engineering samples.
3. In order to make your living environment have obvious effects through the replacement of soundproof windows, manufacturers should be required to test the environmental noise sources you live in. Although they are all roads but the roads are of different grades, there is a great deal of road traffic noise in urban and suburban areas. The difference, such as the noise intensity of Beijing Sihuan, Wuhuan, railways, and airports, is mainly concentrated on low frequencies. After repeated trials, the noise isolation of low-frequency sound insulation windows is not less than 29dB. Therefore, the structure of the sound insulation window should not be a single mode, but the sound insulation window should be designed according to the frequency characteristics of different noise sources. Ensure that sound insulation performance of sound insulation windows meets the requirements of governance.
4, recently some manufacturers in the market in order to improve the sound insulation of doors and windows and the use of three-story glass two-cavity process, the test sound insulation increase is not obvious, Tsinghua University Building Physics and Environmental Testing Center experts believe that insulating glass insulation should be sufficient Mass density and large air sound insulation layer, if the mass density is not the same, the air insulation layer changes will inevitably affect the sound insulation. The addition of the third glass interferes with the sound insulation performance of the hollow glass hollow air sound insulation, and the sound insulation volume is reduced on the contrary. It is recommended that sound insulation windows should not be used in this process.
#image 3
5, vacuum glass is a good sound insulation energy-saving insulation material, its sound insulation performance is also very good. Using sound-absorbing windows with vacuum glass is only an ideal practice. The current vacuum glass is two layers of 5mm thick flat glass with an intermediate vacuum layer of 0.38mm. Double 5mm thick flat glass will pull together under vacuum conditions, so when producing vacuum glass, it is necessary to line some tiny support between double or triple glass. Although these supports become acoustic bridges. However, these supports only account for one thousandth of an area in a window, almost negligible, and most of the vacuum site can be separated from the noise, so no matter what the noise window can not completely eliminate all the noise, Therefore, the quality of the vacuum glass must be considered when selecting the soundproof window.
6. The quality of the sealant directly influences the sound insulation of the soundproof window. The sealant should be selected from soft and elastic anti-aging materials. However, the sealant function is sealed. The window does not leak through the tape and the sound insulation of the window is improved. impossible. In order to prevent the sound insulation window from leaking through the gap, the sealing strip of the window should be closed, and no gaps should be left in the four corners. If there is any gap, leakage noise will also be caused.
#Figure 5
7. If your bedroom or living room is integrated with the balcony, the balcony has been sealed. If you add a layer of sliding door in the balcony, you can achieve a good sound insulation effect.
8, to solve the sound insulation of the room Sound and noise reduction of doors and windows for the indoor acoustic environment is very important, but the external wall of the material used, the thickness can not be ignored, because the external wall of the material, the thickness will directly affect the sound insulation of the wall. If your wall does not have enough sound insulation, installing soundproof windows will not be good. Therefore, sound insulation shall be applied to the wall, such as along the railway and in the room around the airport. The sound insulation window shall be selected to cover more than 40dB of sound insulation, the minimum sound insulation frequency shall have a sound insulation of not less than 35dB, and a double-layer soundproof window shall be used. The window spins down and the inner window opens flat. This kind of structure can reach more than 50dB of sound insulation, and the acoustic environment will be greatly improved after the treatment. The sound insulation monitoring and processing of the wall of the Tsinghua University Building Physics Monitoring Center accumulated many years of experience.
9. The ventilation and soundproof window is a kind of function window developed on the basis of soundproof windows, which can better solve the contradiction between ventilation and sound insulation, and its cost is higher. Until now, the sound insulation can only reach 35dB in the ventilation state. Such a window should not be used in areas where the frequency of the ambient noise source is relatively low or who is sensitive to sound.
# Figure 11
10. When you understand the sound insulation performance of soundproof windows, you should also pay attention to the test report provided by the manufacturer should comply with GB/T50121-2005 national standards, the original building sound insulation evaluation standard GBJ121-88 was abolished on October 1, 2005, The new standard aims at traffic noise characteristics and improves low-frequency sound insulation.
The most important point is that the installation of soundproof windows is different from ordinary windows and doors, and the general investment is relatively high. In order to prevent you from spending money and still not achieve the effect of noise reduction and noise reduction, you must sign a good contract before the implementation of the project. The results achieved are clearly written, such as how many decibels are reduced, what kind of effects are achieved, and so on. After the completion of the project, it is necessary to make a good inspection and check the achieved effect and the installation process.
1. The sound insulation inspection report that the manufacturer needs to have a qualified unit to inspect, the testing units in Beijing mainly include the Construction Physical Testing Center of the Ministry of Construction, the Construction Physics Monitoring Center of Tsinghua University, the Beijing Institute of Labor Protection, and the Beijing Door and Window Hardware Testing Center. unit. Understand the sound insulation of doors and windows, according to their own economic conditions and actual needs, the higher the general sound insulation, the higher the price of sound insulation window, but the sound insulation should not be less than 30dB. If you are in a serious environmental noise pollution or have a high demand for the indoor environment, you should also pay attention to the low-frequency sound insulation of doors and windows and the sound insulation of the lowest sound insulation frequency. Because the traffic noise energy is concentrated at low frequencies, the low-frequency sound insulation performance of doors and windows is Its weakest link will inevitably cause low-frequency leakage and eventually affect sound insulation.
#figure 1
2. Soundproofing windows are different from ordinary doors and windows from material selection to craftsmanship. The glass, sealing materials and profiles used in high sound insulation soundproof windows are determined through repeated tests and tests. Manufacturers should have production separation. Acoustic window technology and engineering performance, if necessary, to visit each other's engineering samples.
3. In order to make your living environment have obvious effects through the replacement of soundproof windows, manufacturers should be required to test the environmental noise sources you live in. Although they are all roads but the roads are of different grades, there is a great deal of road traffic noise in urban and suburban areas. The difference, such as the noise intensity of Beijing Sihuan, Wuhuan, railways, and airports, is mainly concentrated on low frequencies. After repeated trials, the noise isolation of low-frequency sound insulation windows is not less than 29dB. Therefore, the structure of the sound insulation window should not be a single mode, but the sound insulation window should be designed according to the frequency characteristics of different noise sources. Ensure that sound insulation performance of sound insulation windows meets the requirements of governance.
4, recently some manufacturers in the market in order to improve the sound insulation of doors and windows and the use of three-story glass two-cavity process, the test sound insulation increase is not obvious, Tsinghua University Building Physics and Environmental Testing Center experts believe that insulating glass insulation should be sufficient Mass density and large air sound insulation layer, if the mass density is not the same, the air insulation layer changes will inevitably affect the sound insulation. The addition of the third glass interferes with the sound insulation performance of the hollow glass hollow air sound insulation, and the sound insulation volume is reduced on the contrary. It is recommended that sound insulation windows should not be used in this process.
#image 3
5, vacuum glass is a good sound insulation energy-saving insulation material, its sound insulation performance is also very good. Using sound-absorbing windows with vacuum glass is only an ideal practice. The current vacuum glass is two layers of 5mm thick flat glass with an intermediate vacuum layer of 0.38mm. Double 5mm thick flat glass will pull together under vacuum conditions, so when producing vacuum glass, it is necessary to line some tiny support between double or triple glass. Although these supports become acoustic bridges. However, these supports only account for one thousandth of an area in a window, almost negligible, and most of the vacuum site can be separated from the noise, so no matter what the noise window can not completely eliminate all the noise, Therefore, the quality of the vacuum glass must be considered when selecting the soundproof window.
6. The quality of the sealant directly influences the sound insulation of the soundproof window. The sealant should be selected from soft and elastic anti-aging materials. However, the sealant function is sealed. The window does not leak through the tape and the sound insulation of the window is improved. impossible. In order to prevent the sound insulation window from leaking through the gap, the sealing strip of the window should be closed, and no gaps should be left in the four corners. If there is any gap, leakage noise will also be caused.
#Figure 5
7. If your bedroom or living room is integrated with the balcony, the balcony has been sealed. If you add a layer of sliding door in the balcony, you can achieve a good sound insulation effect.
8, to solve the sound insulation of the room Sound and noise reduction of doors and windows for the indoor acoustic environment is very important, but the external wall of the material used, the thickness can not be ignored, because the external wall of the material, the thickness will directly affect the sound insulation of the wall. If your wall does not have enough sound insulation, installing soundproof windows will not be good. Therefore, sound insulation shall be applied to the wall, such as along the railway and in the room around the airport. The sound insulation window shall be selected to cover more than 40dB of sound insulation, the minimum sound insulation frequency shall have a sound insulation of not less than 35dB, and a double-layer soundproof window shall be used. The window spins down and the inner window opens flat. This kind of structure can reach more than 50dB of sound insulation, and the acoustic environment will be greatly improved after the treatment. The sound insulation monitoring and processing of the wall of the Tsinghua University Building Physics Monitoring Center accumulated many years of experience.
9. The ventilation and soundproof window is a kind of function window developed on the basis of soundproof windows, which can better solve the contradiction between ventilation and sound insulation, and its cost is higher. Until now, the sound insulation can only reach 35dB in the ventilation state. Such a window should not be used in areas where the frequency of the ambient noise source is relatively low or who is sensitive to sound.
# Figure 11
10. When you understand the sound insulation performance of soundproof windows, you should also pay attention to the test report provided by the manufacturer should comply with GB/T50121-2005 national standards, the original building sound insulation evaluation standard GBJ121-88 was abolished on October 1, 2005, The new standard aims at traffic noise characteristics and improves low-frequency sound insulation.
The most important point is that the installation of soundproof windows is different from ordinary windows and doors, and the general investment is relatively high. In order to prevent you from spending money and still not achieve the effect of noise reduction and noise reduction, you must sign a good contract before the implementation of the project. The results achieved are clearly written, such as how many decibels are reduced, what kind of effects are achieved, and so on. After the completion of the project, it is necessary to make a good inspection and check the achieved effect and the installation process.