Abstract: “This paper presents the study of the most common errors made in the restoration of salty and damp masonry structures. Analysis of the errors was based on site visits to 127 facilities where restoration treatment was carried out. A set of technical and technological activities aimed at permanent reduction of the moisture level in walls, usually to 3 - 6 percent of mass humidity, was evaluated in terms of correctness if their implementation. These activities included treatments related to the implementation of damp-proof membranes and a whole set of activities involving new sanitary, heating, electrical, ventilation or air conditioning installations, clearing of obstructions or changing rainwater drainage. Errors were studied in three areas: design, construction and usage. It was found that the basic errors arising during the building drying process are errors at the design stage, followed by construction and usage errors.”

Keywords: restoration of monuments, rehabilitation of buildings, drying of damp buildings