Problematic of humidity degradation of plaster with indoor fresco decoration in Romanesque rotunda in Znojmo

摘要

The paper is based on measured and approximated data of internal climate in Romanesque rotunda in Znojmo. It deals with degradation of indoor plaster with fresco decoration due to air humidity. The most probable conditions of internal climate are shown and evaluated in psychometrics chart. Therefore, it is possible to assume ways of plaster degradation from the obtained thermal-moisture conditions of the indoor climate.