Capillary rising damp is characteristic of old buildings, built at a time when builders were unaware of waterproof materials such as bitumen and the like, which are now used for waterproofing. Moreover, old buildings are often built without foundations, directly on the ground. Since the basic construction materials (brick, stone, mortar, concrete…) are to a greater or lesser extent porous, through them, that is through microcapillaries existing in their structure, damp gradually moves upward from the soil. The “culprit” for this is the surface tension of water, which occurs due to the polarisation of water molecules, and its direct consequence is capillarity. Due to capillary action, water “climbs” up the wall, and while moving, creates an additional electromagnetic field in the wall, which enhances the capillary effect.