Balancing energy efficiency and conservation aspects of Terragni’s Casa del Fascio in Como: thermal analysis, energy modelling and intervention proposals

This paper aims to present a methodology for planning energy improvement interventions in modern listed buildings, carried out through a combination of desk research, on-site survey, monitoring campaign and energy modelling. For this purpose, Giuseppe Terragni’s Casa del Fascio has been chosen as our case study. The building is characterised by indoor microclimate conditions that are far from the standard requirements: summer is the most critical period because there is no possibility of limiting overheating due to the absence of the original devices designed by Terragni. Based on monitored data and building characteristics, an energy dynamic model was carried out with the aim of simulating the recovery of the original solutions or the addition of low-impact measures. The simulated options were eventually evaluated by taking into account their compatibility with the building features. This resulted in some strategies suitable for Casa del Fascio, that enable to reconcile the conservative goal with that of improving internal comfort.