For timber impregnation the deep vacuum method is used – such impregnation ensures long-term and reliable protection of timber products from adverse environmental effects, fungus, rot and insects. Impregnated timber remains suitable for use for more than 15 years, even if being exposed to different weather conditions.

The impregnation process includes chemicals (Tanalite E) approved both by the Lithuanian and international institutions. They are organic and does not contain chromium and other environmentally harmful substances. Timber is impregnated under different environmental stress resistance classes.