La valutazione del comfort ambientale e delle prestazioni energetiche degli edifici scolastici. Il contributo della ricerca all’analisi ed alle scelte di intervento. L’esperienza di ricerca su scuole del Comune di Roma. Definizione delle linee guida per interventi sull’esistente."

The case study chosen is a nursery in the city of Rome, built in heavy prefab. The primary goal of this research is to identify corrective strategies of intervention on the building, in order to guarantee comfort to the users, in winter as well as in summertime. At the same time we had to reduce energy bill amounts as well as of CO2 emission. Our first step was a profound analysis of the building itself. We made a thermographic survey in static and transitory regime of the entire building envelope, in order to identify its weaknesses; then we measured the thermal resistance of all external components. The obtained data have then been used as input for the calibration of mathematical simulation models. Working on an existing building has allowed us to compare our model expectations with the real data obtained by observation of the building. At the same time, we realized a data survey campaign (air temperature and humidity, internal and external building envelope temperature, natural illumination and CO2 concentration) from autumn until summer holidays, with the purpose of verifying comfort levels.