L’ANALISI PER IL RECUPERO DELL’ARCHITETTURA PER SOTTRAZIONE IN BASILICATA. IL CASO DI PIETRAGALLA IN PROVINCIA DI POTENZA

The climatic heterogeneity that characterizes the Mediterranean area has lead men, which lived in those places since the antiquity, to modify and to adapt the land that surrounded them in order to create domestic or service spaces according to their needs and their comfort. It is so that to obtain bioclimatic rooms, as we call them today, the tufaceous walls have been excavated to realize hypogeal spaces, more or less extended, in which living or preserving the food, considering the constant temperature of the so obtained rooms, besides the particular humidity’s conditions. Are so obtained caves that if, on one hand, change the slope’s natural morphology thanks to the simple fact that are excavated works, on the other hand they marry with the landscape becoming almost invisibles. A good example is the rich town of Pietragalla, in Basilicata, in which is located a group of 200 tufaceous caves, distributed harmonically on more level’s shares. Today the Palmenti of Pietragalla are one of the evidences of rural productive centre of greatest importance of the lucan territory, in half way between rural and urban landscape, that must be preserved and recovered. Finished, in the majority of cases, the function for which they where realized, we ask on which are the compatible interventions for this kind of architecture, where the missing of a constant maintenance determine a quick ruin. The analysis of what has been shortly said, supported by a capillary documentary searching of the past interventions, besides a metric and material survey, has lead to the writing of a “practice code” for the compatible recovery of those very important evidences of the past.