M. Zuniga and G. Dini (Eds): S-Cube 2013, LNICST 122, pp. 127–142, 2013. © Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2013 Comparative LCA Evaluations between Conventional Interventions and Building Automation Systems for Energetic Requalification Activities Alessandra Pierucci and Guido R. Dell‘Osso Polytechnic of Bari, DICATECh Via Orabona 4, 70124 Bari, Italy pieruccialex@gmail.com, dellosso@poliba.it Abstract. The aim of the research is to investigate how the use of building automation and control systems could represent a valid tool for the achievement of a higher level of energy efficiency in the existing building panorama. The project develops a sustainability evaluation of an Italian dwelling with technological and typological features of sixties-seventies buildings; two alternative efficiency strategies were compared. The first one, more conventional, consisting in the application of walls’ exterior thermal coat and substitution of existing windows; the second one, with the implementation of a specific building automation system for the management of existing components and building services. The results of the research, in terms of computer energy modeling and Life Cycle Assessment evaluations, have demonstrated, by using the second option, a higher potential in achieving a reduction in energy consumption during the use phase, together with a lower resources investment for the energy improvement goal. Keywords: Building requalification, Energy efficiency, Automation, Life Cycle Assessment, Sustainability. 1 Introduction Between all the available systems and technologies for the environmental parameters control, there are many features, for components’ and equipments’ management, that can be used to achieve a high level of building energy efficiency. Several researches [1,2,3,4,5,6,7] concentrated in the last years to test which building automation (BA) system is the most effective in reducing building energy consumption, in increasing the comfort levels for occupants and at last in improving the balance between the performance of the building and user’s requirements modification during the time. Therefore for several authors [8,9,10,11,12,13] the intelligent building is the integration of structures, system, services management strategies oriented to ensure a responsive and active control of the interchanges between external and internal environment, in a sustainable, adaptive and dynamic way.