Evaluation of Natural Stone Weathering in Heritage Building by Infrared Thermography

The application of non-contact diagnostic methodologies is the current challenge in frame cultural heritage, referred to as preservation, monitoring and restoration. Inspired by potential shown infrared thermography rock mechanics’ non-destructive applications, this paper presents results achieved its use for quick survey different weathering types affecting natural stones at historical buildings. Infrared allowed recognizing mapping surface temperatures arising from presence efflorescence, subflorescence, alveolization, black crusts bioweathering limestone basalt stones. data were sided photogrammetric three-dimensional models surveyed spots, which provided quantitative on thickness affected mechanical weathering, key correspondence between two techniques highlighted. Achieved show that outcomes are related aspects primarily involving stone face morphology color, well environmental conditions surveying time. Provided interpretations validated field visual inspections, confirmed good a tool. This study can be therefore considered starting reference knowledge development scientific field.