Since the elaboration of the Leipzig Charter on Sustainable European Cities in 2007, energy retrofit has become one of the priorities for the European Union. However, to achieve a sustainable development of the built environment, we need to not only address the energy consumption in the operational phase but also the environmental aspects associated with the production of the materials applied in the energy retrofit measures. In this case the sustainability is evaluated by comparing the embodied impacts generated during the entire life cycle of the materials with the energy use reduction achieved due to the thermal performance improvement
