The use of a Heritage Building Information Model as an effective tool for planning restoration and diagnostic activities: the example of the Troia Cathedral rose window

The constructive reading of the historical architecture through the study of the published and unpublished sources preserved in the archives, can represent a unique and precious cognitive tool to acquire all fundamental information that constitutes the basis of an aware restoration intervention.Frequently, in case of ancient buildings, reconstruct the complete history of the building is not possible, as the sources are difficult to find, not published or kept in different territorial institutes that are not always easily accessible. The aim of this work is to set up an HBIM (Heritage Building Information Model) system to facilitate the planning of diagnostic and restoration activities by bringing all archive information into a unique digital reference platform, accompanied by three-dimensional models that can be consulted, examined and updated.The creation of the HBIM digital tool for consulting the architectural artefact and related information was only the last phase of this work, which began with: (i) Acquisition of archive sources in order to reconstruct the history of the restoration and renovation work on the monument; (ii) Acquisition of information about the diagnostic analyses and monitoring previously carried out on the monument; (iii) acquisition of data useful for the creation of a digital twin.