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Minimum requirements of the airborne sound insulation for doors Due to the fact that the DIN 4109 has been introduced as technical building regulation in all European states and many other countries, the minimum requirements for the sound insulation between certain rooms and areas are mandatory.


The DIN 4109 allows three different standards for the airborne sound insulation in order to prevent sound propagation from external living and work spaces. These are according to application area organised in sound insulation values Rw,P 32 dB, Rw,P 37 dB and Rw,P 42 dB.


If necessary it may be appropriate to determin the sound insulation values in the tender specifications according to the increased recommondations of DIN 4109 (see bracket values).

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