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Issues related to energy saving, environmental sustainability and safety in case of seismic events are more and more the focus of attention of public opinion and the various actors of the construction sector. The Italian housing stock needs a strong energy adjustment, functional and seismic. The majority of buildings dating back to before the entry into force of the laws on energy saving of 1976 and first of the orders on the seismic design of 2003. The intervention on private buildings is favored by various financial systems and various facilities but to intervention on the public housing stock it is not easy. Most of the public buildings are identified as historical and therefore listed by the Superintendence of Cultural Heritage. Historical constraints, facades and fine decorations and inhomogeneity of the construction techniques and materials used make it very difficult to intervene in these buildings. The article will analyze a case study: the city hall of the municipality of Motta di Livenza (TV). This historic building, listed by the Super-intendent, has been subject to an energy audit that defines what are the best measures of energy efficiency and their economic sustainability. The search result will define which are the most cost-effective interventions to associate with the project of seismic improvement already underway. The case study is a real example of finding a balance between the need for seismic and energy intervention, constraints placed by the Superintendent, the data constraints by decorations and valuable items cannot be modified and the need for improvement of interior comfort.
Righi et al. (Sun,) studied this question.