St. Nicholas' Church (German: St. Nikolaikirche) in Potsdam, Germany, was built to plans by Karl Friedrich Schinkel and restored after the Second World War, and is now a UNESCO world heritage site. In 2010, the reconstruction measures on the outer shell were completed. Damp-proof courses were installed in the foundations up to the plinth end, under the natural stone stairs and under the accessible roof area to prevent surface water from penetrating. A superstructure of beavertail tiles was laid in accordance with the "old Potsdam architectural style" to protect the damp-proof courses installed in the sections with ground contact.
against soil moisture/surface water
DPC under stair covering
against surface water
Sealing of accessible roof areasagainst surface water