Biological corrosion and vegetation in the aspect of permanent ruin

The article presents the mechanisms of biodegradation of structures of historical objects intended for exposure in the form of a permanent ruin, and principles of proceeding in removing undesirable vegetation in these objects. Particular attention was paid to issues related to the diversity of damage caused by living organisms. Rules for the removal of algae, lichens, and fungi as well as the operating procedures for removing unwanted higher plants are presented.