Sound insulation index is a very professional number, only by the business said, the role is not too big, so learn a little check wood door sound insulation method is very practical.

 

 

 

The following three detection methods are recommended by ordinary consumers, which are short, flat and fast detection methods summarized according to the characteristics of wooden doors on the market.

 

 

 

1. Look at the weight. The formula of sound insulation has a direct relationship with the density of materials, so the sound insulation of high density is relatively good, and the molded door is relatively light, which is the root of the poor sound insulation of molded door. But note: flat hollow door with sound insulation cotton in the middle will be more sound insulation than solid wood door.

 

 

 

2. Look at the thickness of the veneer. The thicker the surface plate, the better the sound insulation effect. Generally, the veneer of wooden door should be 8mm thick. The thickness and flatness of the surface layer are better, but the cost will increase. But: the surface layer of iron plate fire door is 3mm thick, the sound insulation effect is also good.

 

 

 

3. Look at the flatness of the wooden door. The smoother the wooden door, the better the combination with the door cover, regardless of the structure. As long as the deformation of the wooden door, sound insulation certainly can not, air leakage.

 

 

 

There is also a slightly professional point, the quality of the expansion glue between the door pocket and the wall, if this is not good, it will also seriously affect the sound insulation.

 

 

 

Note: in fact, the sound insulation of the door and window industry is the same as the fire door, which has a national level, rather than a single content definition. The concept of "sound insulation" and "sound absorption". The principle of sound insulation is determined by the quality or the density of material. The sound insulation of a door is less than that of a wooden door. The sound absorption depends on the surface area and uneven surface space of the material (rock wool, mineral wool and foam are sound absorbing materials, not sound insulation materials).