High-rise housing, how many layers of the quietest?
Modern people living in the noisy city, who all want to be able to go home to enjoy a moment of peace and quiet, in the jungle of concrete and steel, which layer can let us live in a comfortable, but also quiet?
Today's high-rise housing is a lot, we all know that the propagation of sound and distance is directly related. So the farther the floor we live from the sound source, the quieter the environment we live in. It would seem that living on the top floor or on a higher floor would solve the noise problem. But it's not as simple as that, and focusing only on the higher floors may also bring us more noise.
Generally in the city, high-rise buildings are more, in fact, often the higher the floor, the greater the noise will be, the general 1-5 layer noise is relatively small, 11 layers of medium level, 24 layers of larger, so want to buy a house in the busy city center, it is recommended to buy a 1-5 low floors. 24 floors above or higher level of the noise will gradually fall back, this is because the higher the more overlooked The larger the scope, the distant road noise, construction noise can be passed over, the relative noise source increases; the lower the floor, some noise sources will be covered than other buildings, noise will be small, this time to buy a house, the middle floor is the most appropriate. Of course, the degree of noise pollution still depends on the specific environment, if the source of noise is only a road, the situation will be different, often 1 layer will be smaller, 11 layers will be bigger, and then the higher level and gradually become smaller, this is because the higher the floor, the longer the distance of sound propagation, and therefore the attenuation of smaller, discharged other factors, this time to buy a house, whether low or high floor is a good choice.
Why is the noise floor not on the top floor? As we all know, the penetration of sound is limited, and if it encounters a shelter it will be bounced back. But the top floor is often high above the surrounding floors, arguably the emptiest place at the top. This allows the top floor to pick up noise from all directions, so it will be a little noisier. Although the sound will be attenuated on the top floor, the overall attenuation is actually not that great. And what we usually have the hardest time tolerating are actually some long and irregular small noises, not because the noise is loud and feel uncomfortable. Therefore, the top floor is not really that quiet.
The upper middle floors are actually good, because in most neighborhoods, the upper middle floors are surrounded by buildings that can help this floor bounce back the noise, and if we can choose the middle of the neighborhood, then the noise will be even less, as long as the neighborhood is quiet enough, the upper middle floors will not have the opportunity to come from outside the neighborhood noise.
Sometimes the lower floors may be quieter than the higher floors. When it comes to this a lot of people must say it's not possible. But this is also true, why do you say so? Because nowadays, whether it is road greening, neighborhood greening are doing better. These green vegetation can be on the ground floor of the noise blocking, so that the indoor noise attenuation, compared to a slightly higher floor noise can be directly into and no blocking, which is why the bottom of the Kent than the higher floors of the reasons for the quieter.