Rising damp is water from the soil that gradually moves upward through microcapillaries of the construction material into walls.
Usually it reaches the height of 2 meters carrying dissolved salts, whose crystals cause severe damage. The construction materials start to inflate, peel off in sheets, fall apart and eventually separate from the surface.
Dampness does not affect only the object but also the health of persons who reside in it.
Rising damp is a known characteristic of older houses, buildings, castles, religious structures/buildings and similar.
Damp walls contribute to growth of fungi and mould whose organic debris saturates the air and causes various diseases, sleep disorder, weakening of the immune system, allergies, asthma etc.