June to July 2005
Mainly bitumen sheeting, plastics and metal
A flat roof on a pitched roof would be a layman‘s fair description of the Berlin-style roof. More appropriately it is described as a truncated, asymmetric mansard roof. This type of construction is frequently encountered in large cities and dates back to the beginning of the 19th century, when there was a need for low-cost
The basic conditions here were as follows: The roof structure of the U-shaped apartment building was made of wood. The visible faces of the pitched roof were shingle-clad and the flat roof was waterproofed
with bitumen sheeting. When the leaking roof was due for refurbishment, the apartment owners‘ association chose a liquid-resin
waterproofing system with fleece reinforcement throughout to preserve the fabric of the building.