Is dampness a deal destroyer?

Not necessarily, it is important to speak to your consultant and make sure all defects are put in perspective. Most defects are easily rectified, in isolated areas, and may be typical considering the buildings type and age. It is important not to jump to the worst conclusion.

Dampness affects not only aesthetic appeal but also structural integrity. Tell-tale signs of dampness are: mould spots on walls and timber work, blistered or stained paintwork, soft or crumbling plaster, brickwork or stone. Peeling wallpapers and visible salt deposits on wall surfaces are also indicators.

Brick and masonry absorb water, so must be sealed off from contact with moisture and moisture bearing substances like soil. If not, water will rise in the walls causing dampness. When the dampness evaporates it creates cold clammy conditions in solid brick houses and leaves behind the corrosive salts.

There are different types of dampness:
Rising damp - ground moisture being absorbed into masonry walls.
Horizontal penetrating damp - water seeps through defective brick walls or incomplete mortar joints.
Condensation - inadequate ventilation.
Falling damp - defective roofing and plumbing equipment.

Damp-proof courses were originally formed by layers of slate, asphalt or bituminous felt in cement. The location is approximately 150mm above ground level but below floor level. Today the most commonly used materials are bitumen-coated copper or aluminum, heavy-duty polythene is sometimes used. Different types of methods can be used for the cure of damp; installation of a physical damp course has been looked upon as the most effective cure for rising damp. Chemical injection has been used with varying degrees of success as well as chemical impregnation.

We hope this has given you a better understanding of dampness, and as always, please send us a photo or tell us your story if you have one. Call or email us to obtain further information, or a second opinion.