Compatibility, sustainability, modifiability. the impact of sustainable energies in historic sites – some thoughts

Following the recent introduction of an express provision in the Italian legislation regarding the adaptation of existing buildings with energy requirements, it becomes necessary to consider the applicability of the new devices related to renewable energy sources of the historical buildings and more generally the dynamics of modifiability of the existing. This is discovered through a guided reading that part of the territory and reach the cell construction and is expressed in the dialectic mutation and conservation, tradition and innovation. By defining the index of modifiability is achieved an objective parameter for assessment of the restoration project, although this will always be connected to logic evaluation, taking into account the sensitivity of the individual.