Roofing Contractors, Ceilings Partitions, Roof Repairs
Structural dampness refers to the presence of unwanted moisture in the structure of a building, either the result of intrusion from outside or condensation from within the structure.
A high proportion of damp problems in buildings are caused by the “big three”; condensation, rain penetration, and rising damp,although other causes of dampness such as pipe leakage and construction moisture should not be overlooked.
Dampness tends to cause secondary damage to a building. The unwanted moisture enables the growth of various fungi in wood, causing rot or mold health issues and may eventually lead to sick building syndrome. Plaster and paint deteriorate and wallpaper loosens. Stains, from the water, salts and from mold, mar surfaces. The highest airborne mold concentrations are found in buildings where significant mold infestation has occurred, usually as a result of severe water intrusion or flood damage. Molds can grow on almost any surface and occurs where there is a lot of moisture from structural problems such as leaky roofs or high humidity levels. Airborne mold concentrations have the potential to be inhaled and cause serious health effects in humans.
Externally, mortar may crumble and salt stains may appear on the walls. Steel & iron fasteners . It may also cause a poor and respiratory illness in occupants. In extreme cases, mortar or plaster may fall away from the affected wall.
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