Abstract
In Europe, the CO2 emissions generated by buildings can be decreased only by enhancing the performances of existing building, and the principle “energy efficiency first” is strongly promoted by the new EPBD. In order to foster the implementation of the renovation, the process has to become faster and the post-intervention performances should be evaluated with a high level of reliability. This research was developed within the EU H2020 project 4RinEU (www.4rineu.eu) and aimed to develop and evaluate a methodology for comparing the performances of deep renovation packages (RPs), implementing traditional and innovative technologies. This paper focuses on the prefabricated façade component in which active elements such shading systems, single-room ventilation devices, and photovoltaic panels have been integrated. Within 4RinEU, Europe was divided into six climatic geo-clusters. The RPs have been defined for a set of representative residential building archetypes selected from TABULA database, based on the characteristics and renovation needs of the building stock in each geo-cluster. This paper presents the general methodology and the preliminary results of the application to one building archetype defined within the project. The results show that the developed methodology is easily replicable and can be a very useful support in the design phase of these complex renovation interventions.