Building-scale flood hazard modelling for risk assessment of cultural heritage

The present study aims to improve the representation of floodhazard inside CH buildings, whose architectural complexity,such as intricate planimetric and altimetric layouts, often lim-its the reliability of micro-scale models for exposure and riskassessment. Specifically, we develop and test a novel building-scale inundation model applied to a museum in Florence, Italy.

The results indicate that relying solely onurban-scale flood maps leads to substantial overestimation of internal flood depths, whereas the building-scale model representsinundation processes within exhibition spaces. Such approach provides a more robust foundation for risk assessment and miti-gation planning that supports heritage managers in the correct placement and display mode for vulnerable artworks, thanks to arisk classification of exhibition spaces