The influence of moisture on the deterioration of a mosaic and limestone monument

Abstract

This study is an investigation of the influence of moisture on the deterioration of a limestone monument decorated with lime-based plasters and mosaic. The aim is to investigate the deterioration patterns, the influence of the environment, the moisture distribution and the moisture desorption patterns which are resulting in the deterioration of the monument. A number of Non-Destructive Tools and methods were applied to investigate the historic monument, thus allowing repeated readings to be taken over a number of weeks producing dynamic and comparable results. Finally, the results from these tools and methods were used to identify patterns and trends in moisture absorption and desorption resulting in salt crystallisation and deterioration, and potential sources of moisture ingress.