Toward the programmed preventive conservation of the historical-architectural heritage as system and as "antifragile" process

The conditions of fragility to which the built environment and, consequently, the architectural historical heritage are exposed, necessitate the activation of approaches characterized by a greater attention tothe relationships between causal links and systems, logically interscalar and interdisciplinary. It seems increasingly unavoidable the need to arrive at cultural and disciplinary guidelines useful for allowing conservation to come out of the dimension of the extraordinary and finally move towards thatof ordinariness; to build more effective organizational and procedural tools for the maintenance of buildings in relation to the multiple factors that characterize each specific urban and territorial area. The implementation of maintenance processes aimed at preserving the historical and architectural heritage postulate the affirmation of a new design culture that can be based on the "antifragility" paradigm for the affirmation of more effective ways of organizing the processes and systems for conservation of architecture. The essay proposes a methodological reflection on how to conserve the historical-architectural heritage by analyzing the characteristics of programmed preventive conservation as a process and as an organizational system, highlighting how the contribution of maintenance technologies gives specific connotations of "antifragility" essential to counteracting the insurgent conditions of "fragility" of the heritage.