From knowledge to conservation: the hypogeum trappeto of Melpignano (LE, Apulia, Italy)

The paper illustrates the first results of a study on an ancient production site of the industrial heritage of the Terra d'Otranto in South Italy: the trappeto of Melpignano in province of Lecce. It is an hypogeum oil mill for the production of oil for lighting. To understand the history of architectural transformations that involved the site over time a careful historical-archival research and a campaign of 3D architectural surveys using laser scanners and digital photogrammetry were carried out. Furthermore, a specific diagnostic survey, consisting in mapping of main alteration patterns, sampling and scientific analyses of materials and their alteration products was carried; all obtained data are useful for the following restoration and conservation project.