Zprávy památkové péče 2016, 76(4):398-401

Options for biocidal protection of the set of stone sculptures in Nový les near Kuks

Petr Kotlík

Stone objects located in forest or garden areas are exposed to extraordinary levels of vegetational attack. Preventing the occurrence of such requires modifying the conditions necessary for the existence of living organisms (amount of light, available moisture, sufficient nutrients, etc.) or the use of chemical liquidation agents (biocides). The selection of a suitable biocide is usually governed by a compromise between its effectiveness (duration), consideration for the workers who apply it, and the environment. The article addresses the possibility of the destruction of vegetation on stone surfaces using alcohols. Alcohols destroy bacteria, algae, fungi, lichens, mosses, etc. within a few days. The relatively short duration of such measures restricting the recolonization of stone lasts about six months, and the potential harm of the used substances to the environment and workers' health is balanced. It does not harm the treated stone. This procedure was practically tested when treating the reliefs of M. B. Braun in Nový les near Kuks. Regularly spraying the stone works will reduce the occurrence and therefore the negative effect of vegetation without the use of additional chemicals.

Keywords: Kuks; Braun's nativity; biocide protection of stone; stone cleaning; rescue of stone sculpture works

Published: December 1, 2016  Show citation