Restauro ed efficientamento energetico. Un caso di studio: la casa del Mutilato di Cuneo / Restoration and energy retrofit, a case study: the “War Wounded House” in Cuneo.

The suggested architectural restoration project for the “War Wounded House” in Cuneo discusses in particular the energy efficiency of the building with a double intent: the improvement of thermal comfort indoor and, meanwhile, the decreasing of winter heating costs. The energy improvement interventions must totally comply with the restoration’s principles of minimal intervention, of material compatibility and of authenticity. Therefore, it is necessary to determine the most efficient operations in the context of the possibilities which are compatible with the historical and architectural structure of the building. It is then chosen to follow some of the interventions identified by the "Guidelines for improving energy efficiency in cultural heritage" worked out by the Ministry of Heritage and Culture and Tourism. Five possible interventions are then selected for the casing energy efficiency. These five operations are combined in as many possible alternative scenarios: scenario 1 is made up of only intervention 1. Scenario 2 consists of the application of 1 plus 2 interventions, and so to follow up to scenario 5, which consists of the sum of all the 5 proposed interventions. The aim is to determine which scenario presents the most convenient relationship between initial costs, energy savings and thermal comfort. In order to identify the optimal scenario, the analytic hierarchy process is applied, since it allows comparing each other the possible alternatives, considering more criteria at the same time. In this case the chance to manage a plethora of criteria is crucial, as far as they can be considered both economic criteria, referred to initial costs and future running costs, and non-economic criteria, aimed at regarding restoration’s principles. /La proposta per il restauro della Casa del Mutilato di Cuneo tratta nello specifico l’efficientamento energetico dell’involucro. Si individuano, seguendo le “linee di indirizzo per il miglioramento dell’efficienza energetica nel patrimonio culturale” MiBACT, alcuni interventi di efficientamento, che vengono composti tra loro in cinque possibili scenari alternativi. Per individuare quale scenario presenti il rapporto ottimale tra costi, risparmi e comfort termico si utilizza il procedimento di scelta dell’analisi multicriteriale, che permette di confrontare le alternative sia secondo criteri economici, relativi ai costi, sia non economici, volti al rispetto dei principi del restauro.