Consequences of the new DIN 4109 “Sound insulation in buildings”

The new ­German standard DIN 4109 “Sound insulation in buildings” is supposed to replace the old version of DIN 4109 from 1989 in the last quarter of this year. The revision of the standard had taken more than ten years; at the end of the process there is a standard, which, in respect of the calculation method, primarily follows the European series of standards DIN EN12354. By the legal introduction of DIN 4109, the verification of sound insulation becomes more complex and is hardly possible without the respective software program. In return, the results more precisely indicate the sound...