In home decoration, most people want to live with the elderly, children or nanny, and the area of the house is not too big, the sound insulation effect is particularly critical. However, the sound insulation index is a very professional number. It is not very useful if the business only says it. Therefore, it is very practical to learn a little to check the sound insulation of wooden doors. The following three testing methods are recommended testing methods for ordinary consumers, and are short, flat and fast testing methods based on the characteristics of wooden doors on the market.
1. Look at the weight
The sound insulation is directly related to the density of the material. Therefore, the high-density sound insulation is relatively good, and the molded door is relatively light. This is the source of the poor sound insulation of the molded door. But be careful: adding soundproof cotton in the middle of the flat hollow door will sound more sound than solid wood doors.
2. Look at the thickness of the wooden door surface laminate
The thicker the surface layer, the better the sound insulation effect. Generally, the surface layer of wooden doors should be 8mm thick. The thickness of the surface layer and the flatness are better, but the cost will increase. However: the iron sheet of the iron plate fireproof 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 deformed wooden door is not soundproof, it will leak air.
There is also a slightly more professional, 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.
In fact, the sound insulation of the door and window industry has the same national level as fire doors, rather than a single item of content. 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 plate door is less than the wooden door in a 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, not sound-insulating materials).