Climatic influences and the resulting penetration of moisture into the substrate often lead to damages to the façade. In order to protect facades made of mineral building materials, impregnations are used which make the surface water repellent. These hydrophobing agents penetrate deeply into the substrate and dry without leaving residues so that the visual appearance of the façade is not affected by the impregnation.
Facade protection systems prevent masonry and concrete from liquid water ingress (rain or splash water, condensate) but at the same
time water vapor is still able to escape from the façade. That way long term moisture damage can be avoided.