Noise is a form of pollution in our current urban life. Many office workers and students have the experience that they want to sleep well after returning home at night, but they are always too noisy outside, and they always sleep well, so the noise is for us There are actually many influences in his life. So, what harm does noise generally have to the body? How to block noise specifically?

1. The harm of noise to sleep

Sudden noise at 40 decibels can wake up 10% of people, and when it reaches 60 decibels, 70% of people can wake up. Noise will first cause poor sleep and inability to concentrate. Psychological symptoms such as memory decline, and then lead to upset mood, emotional instability, and even reduced tolerance, bad temper, and finally a series of diseases such as high blood pressure, ulcers, and diabetes.

2. The harm of noise to hearing

Noise can cause tinnitus, deafness and hearing loss. When it exceeds 55 decibels, people will feel noisy. After long-term exposure to noise above 85 decibels, the incidence of deafness after 40 years is 21%. When people listen to the sound of motorcycles continuously, their hearing will be impaired after 8 hours; if they are in a rock concert hall, their hearing will be impaired after half an hour; if they live in a noise environment above 80 decibels, deafness may be caused. The sex can reach 50%.

3. The harm of noise to eyesight

It is well known that noise can seriously affect the auditory organs and even cause hearing loss. However, there is a subtle internal connection between ears and eyes. When noise acts on the auditory organs, it will also affect the visual organs through the action of the nervous system, making people’s eyesight weaker.

4. The harm of noise to intelligence

Noise can hinder children's intellectual development. Children in a noisy environment have 20% lower intellectual development than children in a quiet environment.

5. The harm of noise to physiology

Noise can cause nervousness, arrhythmia, and blood pressure. In a high-noise environment. It will cause some women's sexual dysfunction, menstrual disorders, and increase the abortion rate of pregnant women.

6. Attention to noise blocking and decoration

1. Stop the footsteps upstairs

Sound insulation main body: wall top; sound insulation material: sound insulation ceiling

Almost all the owners living in the building have this trouble. The sound of the residents' footsteps upstairs is very annoying, especially when they fall asleep at night, it is easy to be awakened by the sudden footsteps upstairs, and it is difficult to fall asleep again. This kind of voice is especially reflected in the days when there is a big competition like the European Cup.

Please be careful, don't leave the empty ceiling alone, it would be a shame. In fact, the solution is very simple, which is to use professional sound insulation materials to make special sound insulation ceilings. Generally speaking, the ceiling is best for both sound absorption and diffusion. Of course, you must include the ceiling budget into the house decoration fee. Otherwise, the ceiling will cost 10,000 or 20,000 if you make it, and you can use the light steel frame and mineral fiber board method. This is the simplest ceiling treatment and the most cost-effective treatment.

2. Don't let the floor squeak

Sound insulation main body: ground; sound insulation material: cork floor, wood fiber silent floor, thick carpet

Nowadays, home floor treatments are probably marble, tile or wooden floors. In order to reduce the sound reflected from the floor, it is still necessary to spread a thick movable carpet on the ground between the speaker and the listening position. Why do you need a thick carpet? Because thick carpet is enough for sound absorption. If you only want to use a small piece of thin carpet, it will only have a decorative effect, not a substantial sound absorption effect. It is certainly available in textile wholesale markets everywhere. As long as the carpet is thick and it is wool, you can buy cheaper machine fabrics. You don't need to buy pure hand-woven fabrics, because it will be much more expensive.

Speaking of laminate flooring, the softwood mute floor adds sound absorption and noise reduction functions that other floors do not have. Because cork has superior sound transmission characteristics and damping performance, the cork silent floor can not only absorb the sound produced when stepping on the floor, but also has a sound insulation effect on different floors, so you can release your personality and dance with exaggeration without worrying about downstairs. Neighbors visit; in addition, super solid wood flooring can also bring a new sense of solid wood hearing, which contains a new wood fiber mute system that can reduce indoor noise by half.

3. Leave the tranquility next door

Sound insulation main body: wall; sound insulation material: sound insulation blanket, thick curtain, sound-absorbing cotton, wallpaper

Nowadays, buildings generally do not consider "sound-proof design". Two adjacent rooms are separated by a wall, and each other can hear each other's voice, which seriously invades the privacy of family life and affects the quality of life. At present, the partition walls of high-rise towers generally use lightweight partition walls, which brings about the corresponding problem that the sound insulation of the partition walls decreases. People have tried remedies, such as using sound-absorbing cotton and gypsum board as a partition wall, but the effect is not good. Because this is still using sound absorption instead of sound insulation, good sound absorption but not sound insulation, good sound insulation but not sound absorption.

The fundamental solution is to use professional sound insulation materials. For example, the newly introduced Jingxiang series of sound insulation blankets have a single-layer N80 sound insulation blanket with a sound insulation of 20dB. This material has excellent broadband sound insulation characteristics and high damping, which can effectively isolate For all kinds of airborne sound, the sound insulation effect of the sound insulation wall combined with gypsum board and sound-absorbing cotton is very good. In the wall decoration, it is best to make the wall uneven. For example, use wallpaper, wall covering and other materials to do some decoration. They have very good noise reduction effects.

If you want to absorb sound, you don't have to absorb the entire wall, as long as it absorbs the sound approximately halfway between the speaker and the listening position. How big is this sound-absorbing area? It must be at least 1 to 1.5 meters wide and 2/3 of the height of the wall. How about the thickness of the sound-absorbing material? You can't use a thin cloth like a normal curtain to absorb sound, because the effect is not good. At least the thickness of the thick flannel is enough. Moreover, if you want to hang on the side wall like a curtain, please be careful to fold it, just like a curtain. If you don’t want to use cloth to absorb sound, are there any other materials that can be used? You can use cloth to stretch sound-absorbing cotton to make a piece of sound-absorbing body; you can also hang sheep wool; you can also use a variety of soft materials you can think of to absorb. However, please be careful not to think that nailing the wood board can absorb sound. The surface of the wood board is flat, just like the original wall. The wood board itself is very hard, and it is no different from the wall, it will not have the effect of sound absorption.

4. Make the door silent

Sound insulation main body: door; sound insulation material: bridge tunnel mechanics board

Doors are often the "main force" for making noise in the home. Sometimes, even if the door is closed very lightly, heavy sounds can still be heard. This is because the door material is not a soundproof material, which causes such noise. "Bridge Hole Mechanics Board" is a brand-new high-tech door core board made in Germany. Its unique tubular structure can effectively sound insulation. The air retained in the tubular structure is similar to the principle of a vacuum flask and sound insulation glass, which can achieve a sound insulation effect equivalent to 30-44dB.

5. Let the indoor pipeline completely de-noise

Sound insulation main body: pipe; sound insulation material: sound insulation blanket

With the use of PVC sewage pipe, its drainage noise is very loud. The sound can reach 60 ~ 70dB. General method: wrap the pipe and fill in some sound-absorbing materials in the middle. But the effect is very poor and basically does not have any effect.

To solve this kind of problem, sound insulation blanket can be used. The process method is: cut the sound insulation blanket into 100mm wide strips, apply glue on one side, and spirally wrap it on the sewage pipe as the first layer, and then wrap a layer with sound-absorbing material, and finally absorb the sound A layer of sound insulation blanket is spirally wrapped outside. This method solves the pipe noise thoroughly.