Dampness rise and repair systems in the restoration of ancient building materials

Rising dampness in ancient walls is one of the most frequent problems in ancient buildings, which affects both building and restoration materials, thus leading to strong structural and surface damages. After outline of some peculiar, investigated cases (St. Mark Church, Pio Palace in Carpi and other ones), the mechanisms and decay effects of rising water in the masonry are discussed from both laboratory and on site point of view. Some experimental results are finally discussed and evaluated with reference to the adhesion of the main materials and systems frequently used in Italy for restoration of ancient materials of architectural heritage.