Influence of Long-Time Work of 19^th Century Modern-Type Roof Construction on Technical Condition of Vaults of Gothic Church

Abstract

The gothic church (1384) placed near historical Silesian-Saxon border in Lubań/ Poland was rebuild in 19th century, following the conservator’s doctrine their time, for purification the architectonical style. The gothic nave became new neo-gothic vaults and roof with modern wooden-steel carpenter construction. After a 100 years of rebuilding the nave, it was started to be visible damages caused by rheological processes in steel bars of modern roof construction as a cracks in the walls and both vaults, original gothic in presbyteries and 19th century in nave.