No more afraid of noise! Teach you to choose the heart soundproof door
After the opening of the second season of "Ode to Joy", Weibo will be screened by five small flowers from time to time. The interaction outside the play makes people sigh, and friendship is a wonderful thing. Because Xiaobian vaguely remembers, in the first season, Qufu overslept at midnight, neighbors Fan Shengmei, Qiu Yingying and others complained. In the end, Andy used the way of the alarm to eliminate the noise. Of course, he also made a small beam with Qufu. Speaking of it, the harm of noise to the human body can not be underestimated. Lightness causes neurasthenia and insomnia. In severe cases, people's blood pressure rises and heart function is abnormal. In real life, if we encounter neighbors like Qufu who like to make noise, in addition to the alarm, we can also choose to install a soundproof door to isolate the noise and protect the health of ourselves and our families.
Three types of common soundproof doors
1. All solid wood door
The solid wood door is made of natural logs and processed through dry treatment. Most of the high-grade solid wood doors are made of precious wood. The price varies depending on the wood material and texture. The medium and high-grade solid wood has walnut, cherry, Sapele, rosewood, etc. The pure solid wood door requires high manufacturing process and requires dehydration and degreasing. Well, otherwise it will be easily deformed and cracked, so it is necessary to choose a large manufacturer with strength. There is also a kind of solid wood door in the market. Although the information is also full of wood, the solid wood is used as the skeleton, the wood core board and the fiber board are used as the door core, the surface is decorated with high-grade veneer, and the style of the solid wood door is adhered to. The price is relatively low, but Once wet, it is easy to degumming, cracking, and mildew.
2, solid wood composite door
There are many types of composite materials. It is made of solid wood for internal support or frame, and is attached with high-density fiber panels or MDF, particleboard and other artificial materials. Finally, the paper is attached with wood grain and color paper or PVC film. Made out. The composite doors are various in style, rich in style, and cheaper in price. They are more liked by young people who are pursuing fashion. However, some of the products are treated with glue and wood but are not resistant to water and easily contaminated.
3. Molded door
Molded wooden door is a kind of composite door. Because the price is more economical than solid wood door, it is safe and convenient, and then it is loved by popular families.
The molded wooden door is mechanically pressed from two high-density fiber molded door panels with styling and simulated wood grain. It has the characteristics of moisture-proof, small expansion coefficient and anti-deformation. After a period of work, it will not show the appearance of cracks and oxidative discoloration. Ordinary composite molded wooden doors are delivered with a neutral white primer. Consumers can go home and paint on the white neutral primer according to the hobby, satisfying the needs of consumers. Compared with the handmade solid wood door, the molded door is mechanized, so its cost is also low. Because the door panel is hollow, the natural sound insulation results are worse than the solid wood door. Another problem with molded doors is that the release of harmful gases can cause indoor pollution.
Which soundproof door works well?
According to the relevant regulations of the state, the sound insulation effect of the living room door should reach 22 to 25 decibels. From the materials used in the living room door, the sound insulation performance of solid wood doors and solid wood composite doors is much better than that of paint-free doors, steel doors, molded doors, etc. From the difference of the door, the T-port (German door) is better than the traditional flat door.
For solid wood doors and solid wood composite doors, the sound insulation depends mainly on the filler in the door panel. Usually, the wooden door is filled with a paper-like structure of a honeycomb structure, and the sound insulation effect is general. The best is that the inner core uses a particle board door, and the sound insulation effect can reach 32 decibels. In addition, wood doors with high wood density, heavy weight and thick door panels have good sound insulation properties. The inferior door panel is only a few partitions in the hollow core with cardboard, and the sound insulation effect will be very poor.
Honeycomb paper door core
Solid particle board door core
MDF spacer
The sound insulation effect of the steel door depends on the thickness and type of the glass. The carved glass door and the double-glazed glass door have the best sound insulation effect, and are suitable for the bedroom, the study room or the partition between the kitchen and the living room. Even a good quality soundproof door needs to be installed in a tightly jointed manner. Poor installation will also affect the sound insulation effect. It is therefore recommended to have a professional install the door and door cover.
Related reading: Several factors affecting the sound insulation of doors and windows
How to choose the most soundproof door?
1. Look at the weight. The formula of sound insulation is directly related to the density of the material, so the sound insulation with high density is relatively good, and the molded door is relatively light, which is the source of poor sound insulation of the molded door. But note: the soundproof cotton in the middle of the flat hollow door will be more soundproof than the solid wood door.
2. Look at the thickness of the wooden facade laminate. The thicker the surface layer, the better the sound insulation effect. The general laminate of the wooden door should be 8mm thick. The thickness of the surface layer is also good, but the cost is increased. However: the iron surface of the iron plate fire door is 3mm thick, and the sound insulation effect is also good.
3. Look at the flatness of the wooden door. The flatter the wooden door, the better the combination with the door cover, regardless of the structure. As long as the deformation of the wooden door is not soundproof, it will leak.
4, look at the pattern. In addition to the sound insulation function, the soundproof door should also have a certain sound absorption effect. Attentive people will find that most of the door panels have simple or complex patterns on both sides. These patterns can act to absorb sound and prevent sound reflection. Because if the door panel is very smooth, the sound waves in the room will be completely reflected back by the door panel, creating noise.
5. Look at the quality of the expansion glue between the door cover and the wall . If this is not good, it will seriously affect the sound insulation.
Note: In fact, the sound insulation of the door and window industry is the same as that of the fire door, not a single item. The concept of "sound insulation" and "sound absorption". The principle of sound insulation depends on the quality or the density of the material (when the overall weight of the iron door is smaller than the wooden door per unit area, its sound insulation is not as good as the wooden door), and the sound absorption depends on the fine surface area of ​​the material and the uneven surface. Space (rock wool, mineral wool, and foam are all sound absorbing materials rather than soundproofing materials).
In addition, in order to avoid noise, in addition to the soundproof door, there are several common senses of noise reduction and noise reduction, such as not buying a street-side house, choosing a greenbelt, and using soundproof glass for sound insulation.
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