It is a basic question in building-physics to evaluate the moisture stress of a building and its units, and how to prevent damages of the building stock.
It is necessary to reduce the dampness load towards the building‘s units by drainage and measures of waterproofing. To conceive a damp-technically perfect building, the driving rain protection of external construction components has to be evaluated and the accumulation of condensed water on the interior wall surface of badly thermal insulated external constructions, often in the area of cold bridges, has to be determined.
The basis of each calculation are capillary-, diffusion- and pyrometric characteristics of the building materials, which, if not known, can be determined with the help of additional laboratory tests.