Marketplace per elementi lapidei di pregio: un’innovativa opportunità per la salvaguardia del patrimonio UNESCO

The UNESCO cultural heritage includes constructions that require maintenance actions as they are subject to natural degradation, neglect, vandalism, and fraudulent collecting. While re-evaluating the original function or identifying a new one, the restoration with materials/components that do not respect the historical-cultural and technical-constructive features must be avoided. Rather, it would be necessary to re-adopt the ancient practice of the spolium and favouring with methodological rigour the recovery, cataloguing and marketing of deconstructed materials, val-uable for their characteristics and workmanship and therefore deserving to be relocated in works of equal value. Starting from the analysis of the web marketplaces dedicated to the recycling/reuse of "construction and demolition waste", we analysed potentialities and limits of a process able to transform valuable stone elements into resources, respecting the construction on which we intervene and the one from which components come, to guarantee the con-tinuity of memory.