Flanking transmission along an aluminium façade 2 results in practice

In apartment buildings aluminium facades are not applied very often in the Netherlands. In a case study [1] is explained how, based on laboratory experiments and predictions the airborne and impact sound insulation between apartments were expected to fulfil comfort class demands. In the lab experiments a substitute facade was used in front of the concrete floor between the apartments. After the completion of the apartment building sound insulation measurements have been done in situ. In this paper the measurement results are given and discussed in relation to the prediction. The airborne sound insulation just fulfils the demands in the same way as the results of the lab experiments and predictions.