Innovative and sustainable coating system: Preliminary acoustic evaluation results

The research and experimentation described in this study, aim to select an innovative material to be used in the refurbishment of buildings located in densely populated urban areas and/or in areas characterized by noise from transport infrastructures, in order to achieve both a substantial reduction of noise exposure and an improvement in energy efficiency. This applied research provides for the setting up of an analysis and testing laboratory situated in a full-scale building, located in the proximity of the Malpensa airport, where the thermal and acoustic properties of the innovative materials will be checked on site. A preliminary evaluation of acoustic properties of three different materials, selected in conjunction with Lombardy Region, which is the funding body of this research, was carried out in the laboratories of ITC - CNR (Construction Technologies Institute of the National Research Council of Italy) and of Brescia University, which include: airborne sound insulation improvement measured on the same wall as in the Malpensa's real building; measurement of sound absorption in the reverberation room and in the impedance tube.