579 Spectral Response of Architectural Surface as Support to Analyses of Materials and Degradation Monica Giuliano 1 and Ciro Manzo 2 1 Archaeologist freelance, Via Francesco Baracca 18, 80016 Marano di Napoli, Naples, Italy. monica.giuliano2810@gmail.com 2 I.I.A. (Institute of Atmospheric Pollution Research) - CNR (National Research Council of Italy) - Research Area of Rome 1, Via Salaria Km 29,300, 00016 Monterotondo Scalo, Rome, Italy. c.manzo@iia.cnr.it EuroMed 2014 Preservation and Conservation in Cultural Heritage