In all conservation works, follow the assumptions of the Venice Charter, which says that the monument should not be reconstructed - the original substance of the structure and materials should be respected. All newly added elements of a historic building should be distinguishable from the original. Where it is impossible to use traditional technologies, it is acceptable to use proven modern technologies. Building fragments from all stages of construction should be protected.
Due to the specificity of objects (wooden, large-size) exhibited in the open air, and in order to obtain the greatest possible efficiency, it is necessary to perform the treatments in the period from the beginning of May to the end of August. This is related to the biologically defined life cycle of insects as well as the appropriate temperatures at which biocides and impregnating agents should be used. Occurring frosts may cause, among others, cracking of the foil, weakening of the chemical agent's effect, and thus the lack of effectiveness of the treatments.
