Ricerc@Sapienza

In Italy, after the destructions of World War II, due the particular development of economy and the political decision in the field of reconstruction, a government option for building construction industrialization comes up only at the beginning of ‘60s.

This study examines the impact of building use variable on the energy retrofit for vernacular buildings. In Italy, the main part of the building stock is composed of urban textures based on vernacular buildings. This part shares regional values and features that distinguish the landscape and influence the global primary energy demand of buildings sector. Moreover, historical towns underwent a renovation process which includes changes of use driven by economic factors and totally unaware of the effect on energy performance.

This paper focuses on the energy retrofit cost-optimal analysis in the usual and deep building renovation scenarios, considering the importance of non-energy-related aspect in an integrated design approach. This objective is developed within the Italian regulation framework on energy efficiency and building renovation. Nowadays, the great part of tax incentives is given to retrofits merely based on technologies existing in the market, without any balanced design approach that may lead to the optimal solution.