Once flat roofs were notoriously prone to leaking and the problem could only be solved with a boiling cauldron of tar. These days there are patch repair kits, liquid rubber membranes and even quick, efficient waterproofing paint such as paint-on acrylics that last for ages – and can even be applied in damp weather.

In order to complete the waterproofing of the roof perfectly, it is necessary to use bitumen-based waterproofing membranes, as well as chamfer tapes for corner leaks, drainage systems to prevent water accumulation, coating materials to protect the top layer, and various cement-based waterproofing materials to make the ...