A protocol for sustainable building interventions: financial analysis and environmental effects

The economic evaluations conducted by the public operator require to estimate not only the financial effects generated by the investment project, but also the social, cultural and environmental results. This study proposes a model that, starting from the collection and processing of data which characterise the thermodynamic building's behaviour, allows the correct selection of energetic requalification interventions, both under technical and financial issue. Moreover the model allows to take into account in monetary terms the extent of the lower CO2 emissions as a result of the proposed design solution. The criterion for the quantification of the value corresponding to the avoided emissions of CO2, follows analysis of the main models proposed in the literature. We examined the results of the protocol applied to a real case.