In the monographic “On the Mediterranean construction routes. Systems turned between Naples and Valencia from the Middle Ages to the nineteenth century ", the volume publishes eight contributions relating to research conducted in the context of a bilateral agreement signed between the University of Naples Federico II and the Universitat Politècnica di València (2015- 2020). A project that analyzed the diffusion and variations of the construction systems of the vaults from the Middle Ages to the nineteenth century in a comparative reading of the contexts of Naples and Valencia and with references to the Kingdoms of Naples and Aragon. In addition to the traditional 'heavy' masonry vaults, the 'light' vaults were investigated, made of wood and brick arranged flat, known in the Spanish context as bovedas tabicadas and in southern Italy as 'Sicilian vaults'. They appear in Sicily starting from the fifteenth century, while in the Neapolitan area the oldest currently known, which date back to the thirties of the nineteenth century, show a construction technique dependent on the Valencian matrix.
In the “Case studies” section there are instead seven contributions relating to: decorations of medieval bricks of Pisa; carpentry of the roof of the castle of Aymavilles (Aosta); north-west industrial suburb of Pompeii; the so-called "gates of the dead" of L'Aquila; the Romanesque phase of the church of San Lorenzo in Verona; the medieval structures in the area of Trajan's Markets in Rome.