Rising Damp within a building is triggered by water in the ground that rises up through to the bricks and mortar by capillary action. If not treated, dampness can trigger wood to rot and cause corrosion to cavity wall ties and also impact your health and wellbeing (it increases the likelihood of respiratory illness in homes).
What is rising damp?
Damp treatment
Example Images


Why damp
proofing?
Typical signs of rising damp rather than other damp problems are a ‘tide line’ of yellowish or brownish staining or blown plaster in the lower area of your wall above your skirting board. You also might have damp or rotting skirting boards or flooring.
Carrying out a quick-fix for rising damp, (e.g. repointing or painting over the damp) will just make the job more expensive in the long term and will mean you need to do the job all over again at a later date. A damp proof course is a waterproof barrier that spans the width and length of your wall. It stops water from the ground rising up through the wall through capillary action.