Identification and thermal behaviour of traditional flat roofs in the Mediterranean using remote and in situ sensing technologies - an innovative approach

Abstract

'Cool roofs' and 'evaporative roofs' are modern construction technologies based in part on the known behaviour of 'traditional flat roofs' in the Mediterranean. This paper describes an innovative study of the behaviour of Mediterranean roofs, employing high resolution satellite data, UAV (Unmanned Aerial Vehicle) multispectral technology (visible, near- and thermal-infrared wavelengths) and direct measurements on, and underneath, the roofs of selected buildings in Malta, whilst also comparing to modified and modern flat roofs. This research is determining their real behaviour and advancing the understanding of their performance, whilst promoting their sustainable preservation and maintenance in a changing climate. An interesting outcome of this project has been that satellite (and to a certain extent) UAV technology can remotely identify traditional roofs from other roofs and understand their thermal behaviour. This will be an important tool for policy makers and regulators who need to assess the presence and location of such roofs.