1. Introduction
Historic buildings represent a quarter of the existing buildings; retrofit strategies, associated a heritage protection and maintenance action plans, could guarantee a long-term and more sustainable building conservation.
Since the delicacy of the scope of application, characterized by buildings usually built with characteristics and properties different from those of modern construction, one of the greatest challenge is to define a guidance procedure, that could help stakeholders in adopting retrofit measures carefully weighed, balancing case-by-case heritage criteria, users’ needs, efficiency objectives, considering different variables and evaluating scenarios pros and cons.
The research aims to deal with the topic of the heritage buildings’ retrofit: starting from a review of existing evaluation methods, tools and guidelines for retrofitting the built heritage, the intent is to define an integration method for the existing Guidelines, that could be useful to guide public administrations, cultural heritage authorities and energy performance operators during the decision-making process, both in planning and assessing retrofit strategies.
It is expected that could be applicable not only in national area, but in the whole Mediterranean area and it could be implemented for other contexts.