Materiali, dimensioni e tecnologie sostenibili per il recupero e la costruzione in "crudo"

The reflections that follow closely are connected to a particular attention to the r problems related to raw-earth constructions that can be considered like emblematic of a typically Mediterranean, sustainable and ecological heritage. The local raw-earth heritage constitutes the inheritance, the alive memory of the appropriate shapes produced in a determined "ambient"; they also constitute the cultural baggage of the constructor from which to get information in order to re-propose, to re-invent and/or to bring up-to-date the modalities of buildings appropriated to the requirements of a place in a defined time. A masterly example of this approach to the plan (sustainable) can be found in the work of Hassan Fathy and in particular in the definition of a three-dimensional module - dictated from technical-structural and physic-environmental necessities - that is realized with morphologies appropriated to the complex requirements found respect to the place and to the demands for the user. An analogous approach can be traced in the work of LeCorbusier and in particular in the definition of a basic "familiar hearth" - that is determined from the fundamental requirements of the user - and in the evolution connected with the deepening of the physic-environmental requirements of the elements of the shell towards a multi-functional complex system. The introduced proposals - outcome of the research and the didactic experimentation derive from these "lessons": they trace the "local module" and indicate the appropriate interventions in the re-qualification or in the proposal of new modalities of the shell definition in relation with the last needs, respect to the sustainability and to the atmosphere safeguard. It is, in synthesis, an attempt to trace a methodological way, useful to define rehabilitation or new developments interventions, in re-constituting the continuity with the local Mediterranean identity.