The most common preventive-measure against rising damp in properties or buildings is the use of damp proof courses and/or membranes. Damp proofing materials for buildings are generally made from cement mortar, mastic asphalt, slates, bricks etc, a damp membrane however is usually made of plastic. Some of the symptoms of rising damp in/on a building are some evidence of tide marks on the building’s walls and discoloration on the building’s exterior stonework or brick.
Rising damp may be caused by water that permeates through the mortar, stonework or brickwork of a building. Rising damp may also occur too as a result of a missing, damaged or faulty damp proof course, or if the ground level around a building or property has been raised and/or elevated in a way that allows water to pervade/infuse the walls of a building, above the damp proof course that may have been used with the building.
The ground water from a rising damp will usually contain some minerals salts that would also get deposited on the walls of a building, such salts will typically absorb some moisture from the air too thereby contributing to the building’s damp issues. Rising damp will typically affect the lower part of a building’s walls but may move or rise higher if it is not dealt with on time.
The effects of rising damp on a property include some loss of heat from the building, unsightly appearance of the building’s interior walls, mite and mold growth, some poor indoor air-quality and the decay of the timber/wooden structures in the building that may have been exposed to the damp.
The treatment for rising damp may include a replacement of a building’s damp proof course, the use of land-drains, electro osmotic systems and the injection of a chemical cream or liquid into the walls of the building. Land drains may be used to control the ground water level around a building and its walls. With electro osmotic systems wires are embedded in the walls of a building at the base of the walls, with some electrical control unit passing some electricity through the wires to control damp. Chemical injections will typically set/cure to become a water-resistant barrier.
Identifying what is rising damp or what is not, will generally require some expert analysis and assistance since rising damp is usually misdiagnosed. Each property owner or occupant would ideally need to look for some services or specialists that are adequately experienced at dealing with all types of damp related issues or problems on properties.
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