I'm tired of this. Buying a house is a major event in life and a good thing. How can we keep it a secret?
It turns out that this house is really next to the subway.
The viaduct where the subway is located is less than 30 meters away from the residential area. The subway passes by here every day, and the sound it makes is completely different from the sound it hears in the carriage when taking the subway.
According to many owners of the community, in addition to the sound of the normal operation of the subway during the day, it is often awakened by the strong noise from the maintenance vehicles and dispatching vehicles of the subway in the early morning. Coupled with the long running time of the subway, some running time overlaps with people's rest time in the morning and late at night.
Many owners said that their houses were psychologically prepared for noise next to the elevated subway. When they were renovated, they also installed soundproof windows and made some noise-proof and noise-reduction treatments, but the subway noise was really too loud.
Someone once used a hand-held decibel meter to test in the owner's home near the elevated subway on the seventh floor. When the train was out of date, the sound reached nearly 80 decibels, and even when the doors and windows were closed, it measured 62 decibels.
According to the national indoor noise standard, the noise limit of rest rooms such as bedrooms in pure residential areas is below 40 decibels during the day and below 30 decibels at night (from 22: 00 on the same day to 6: 00 the next day).
Obviously, the noise of such a "street-facing house" far exceeds the national standard and is an unqualified commodity.
Seeing this, I can't help thinking deeply. Isn't the staff of the property office upstairs of Chongqing Liziba Light Rail Station retarded?
(The picture above shows Chongqing Liziba Light Rail Station. When the light rail train standing upstairs arrives at the station, obvious vibration can be felt on the soles of the feet. )
Some people may think that it is best to choose a low-rise apartment next to the elevated road, so the sound should be lower.
However, after professional noise detection, we found that the lowest point of noise did not appear at the bottom, but at the middle and low levels.
The subway track itself is relatively wide, and there are many parallel tracks, so it is impossible to simply estimate the noise in the floor according to the banded noise source. The propagation of noise is spherical. When the sound propagates upward without obstruction, it is the middle and high-rise rooms that receive more noise.
If the ground floor residence is adjacent to the ground street, shops and vehicles along the street without shelter, the impact will be even greater.
Here, I will give you some tips on building selection when buying a house next to the viaduct.
When the building is less than 30 meters away from the overhead, try to avoid the residential buildings with 5 floors ~ 10;
When the building is 30~ 100 meters overhead, try to avoid 10 ~30 floors of residential buildings;
When the building is at a distance of 0/00 ~ 300m from overhead/kloc-,try to avoid houses above 0/5th floor of/kloc-;
When the building is more than 300 meters above the ground, there is little difference in noise on other floors except the ground floor.
On this basis, when choosing the apartment, the bedroom should also try to avoid directly facing the elevated.
Don't be afraid if you have bought the floor above me. Decoration tips teach you how to isolate road traffic noise.
1
Sound insulation felt is a good thing. Before the wall decoration of the blank house, sound insulation felt can be laid on the wall, and embedded in the wall can achieve the effect of two-way sound insulation and vibration reduction.
And it can be completely covered in the subsequent decoration. Because of the small thickness, only a small part of the indoor area will be sacrificed, which can ensure the beauty and quiet of the bedroom.
2
Sound insulation windows can directly and effectively block the spread of external noise into the house. A well-decorated house can choose three layers of glass sound insulation windows to enhance the sound insulation effect.
three
Thick soundproof curtains can also block 10~20% external noise. Generally, sound insulation curtains are made of cotton and linen, and the thicker the curtains, the better the sound insulation effect.
Generally speaking, when buying a house next to an elevated building, you should try to choose a bedroom that is far away from the elevated direction, and make great efforts to do sound insulation and noise reduction measures when decorating.
I wish you all a quiet living space ~
(& gtω? * )?
The source of tranquility, the noise control expert around you,
Escort your quiet space.