LA RIQUALIFICAZIONE ENERGETICA DELL’INVOLUCRO EDILIZIO ATTRAVERSO UN SISTEMA ISOLANTE COMPOSITO. MESSA IN OPERA E MISURA DELLE PRESTAZIONI THE BUILDING ENVELOPE RENOVATION TROUGHT COMPOSITE INSULATION SYSTEM. INSTALLATION AND MEASUREMENT OF PERFORMANCE

More than 60% of the existing building stock in Lombardy Region has been built before the 70’s and it is among the main responsible causes of final energy absorption and corresponding CO2 emissions. In this view, the residential buildings represent the main relevant part with a mean overall performance index of 201.8 kWh/m2a. The promotion of renovation measures for such buildings, also through innovative solutions, is becoming increasingly important for both containing the greenhouse gas emissions and supporting the growth of the construction sector. To this topic, the work presents the energy renovation of a social housing building in the Province of Milan through the application of innovative prefabricated façade panels that integrate both thermal insulation and exterior finishing. In detail, the paper describes, on one hand, the relevant design strategies following the preliminary analysis and, on the other hand, the process of installation; besides, the final performance of the retrofitted envelope is documented by the results of the monitoring campaign.