Rethinking user based innovation: Assessing public and professional perceptions of energy efficient building facades in Greece, Italy and Spain

This paper investigates the public and professional attitudes towards an innovative energy efficient façade refurbishment system, in Mediterranean countries, including Greece, Italy and Spain. Two types of multiple choice questionnaires were developed and addressed to two different target groups: building professionals and users. The survey questionnaire was created so as to elicit information on the interviewee's background and explore attitudes and perceptions towards the proposed system. Results signify that both potential users and professionals are generally positive towards the system's energy performance; however, the increased cost of acquisition, maintenance issues and the replacement of natural ventilation by mechanical means consist significant constraints that induce hesitations for the users. Professionals are willing to apply a ventilated façade in a future project but the lack of the corresponding knowledge may be an important obstacle to face.