Description
The paper presents the results of the analysis of the conservation status of the historic polychrome covering the surface of the vault in the main presbytery of St. Mary's Basilica in Krakow. Due to the historical value of the examined construction, the main assumption of the implemented research program was to use non-destructive and non-contact methods. Based on 3D scans, an inventory of the vaulting geometry was conducted. Subsequently, an analysis of thermal maps of the vault surface was performed, leading to a preliminary assessment of detachment areas of the polychrome. The temperature distribution across the surface of the polychrome was analyzed as an indicator determining the extent of potential detachments. A consistent temperature distribution indicated the absence of detachment. The areas where changes in temperature values were recorded were analyzed for potential detachments and discontinuities. The presented research program allowed for a non-contact and non-destructive assessment of the condition of the subject polychrome.