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Rising Damp Treatment

Rising Damp Treatment

Rising dampness is a form of dampness found in primarily older properties. It is caused by the building’s bricks and mortar absorbing salt rich moisture from the ground over a period of time. These salts are left in the walls during natural evaporation which can be seen forming crystals typically on the surface of internal plasters.

The majority of buildings are constructed with physical damp proof courses (DPC’s) which are thin barriers inserted in the walls low levels designed to inhibit moisture rising from the ground. Occasionally and especially in older buildings where the DPC is made of slate and degrades or cracks, the DPC is breached, allowing the passage of moisture into the wall above. Typically, rising dampness will be found up to 1 metre from the ground but in exceptional circumstances, can rise higher.

Common symptoms of rising damp include flaking or blistering paint, water marks, bands of salt crystals on internal plaster and rotten skirting boards.

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