Analysis of façade sound insulation field measurements - Influence of acoustic and non-acoustic parameters

This paper presents the results of a research study undertaken as part of two Short Term Scientific Missions (STSM) of European COST Action TU0901, carried out at the Construction Technologies Institute ITC CNR of Milan with the aim to review, analyse and interpret substantial field data relating to the façade sound insulation. The host institution ITC has collected a database that can be considered unique of its kind taking into account that on-site façade sound insulation measurements are less frequent and more complicated than interior walls sound insulation measurements. To collect data for this database the many prominent Bodies have cooperated with ITC and provided its own data in the context of the STSM work. This paper focuses on the analysis of the influence of acoustic and non-acoustic parameters on the insulation performance of façades; the different building intended use, the typology of the façade, the layers and mass of the wall, the portion of window surface and their Rw together with all the other features provided a basis for complex division of data in key categories.