Szukana fraza: [Abstract = "During exploitation, elevations are exposed to water retention. In places were barriers are installed, moisture occurs with greater intensity than in other parts of the facade. Over time, in addition to the aesthetic problem, this results in biodeterioration \(biological corrosion\), induced by the deposited biological factors. The article presents the issue of placing barriers on external facades, on the example of buildings developed in Zielona Góra."]