The decibel information for impact sound insulation

As you learn more about impact sound insulation, you often come across decibels (dB). In this article you will find out what that is and what role decibel plays in impact sound insulation.

Decibel - unit of measure for volume

The unit decibel indicates the volume of certain sounds. It is not only needed when it comes to sound insulation in buildings, but also in many other areas such as health research. Noise pollution can - depending on the extent - cause slight to severe damage to health.

The following table gives you a brief overview to give you a better idea of ​​different dB figures:

  • 10 dB: Normal breathing has this volume
  • 20 dB: The noise of leaves
  • 40 dB: whisper
  • 50 dB: A normal conversation
  • 80 dB: road traffic
  • 130 dB: The pain threshold of humans

Noticeable reduction due to footfall sound insulation

Impact sound insulation can significantly reduce the dB number of a room. For example, a wooden floor with a 2 mm thick, insulating layer already achieves an impact sound improvement of around 17 dB, while a 5 mm thick polystyrene panel achieves around 23 dB. To express it with examples from the table: The volume of the normal whisper can be reduced to the volume of the leaves' noise.

Just as large as the choice of different insulating materials are the differences in the effect. Especially carpets achieve an excellent level of impact sound insulation: While a reduction of up to 30 dB is possible with normal carpets, particularly thick variants reach around 40 dB. You see: Even with simple and comparatively low-cost insulation materials, an excellent effect can be achieved.

The Tenancy Law: Fixed Provisions

The law also stipulates how loud it may be in certain rooms that are rented: According to DIN, for example, a noise level of up to 53 dB may be reached in third-party homes, with this value dropping to a maximum of 46 dB in the case of increased claims. As a tenant, you have a legal claim to an apartment that is sufficiently protected against impact sound.

Tips & Tricks

If you are a tenant and suffer from a lack of noise protection, you should definitely contact your landlord. If you are not prepared to provide your home with sufficient soundproofing, you should take advantage of your legal options.

Video Board: Kiilto dB Stop Impact sound reduction system