Rising Damp

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This is the general term for water that enters the fabric of a building by being absorbed from the surrounding ground into walls and floors - slowly causing damage to a property over a long period of time. This moisture often brings with it, groundwater salts and other contaminants that contaminate building materials and decorations.

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What is Rising Damp?

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Ground water (moisture) that is drawn upwards through porous building materials such as bricks, mortar or sandstone. The speed at which the moisture rises up the walls will depend on several factors - the type of wall or floor construction, the nature of the ground and the environment inside and outside of the building. In most cases rising damp is a slow process and may be present in a building for several years before any signs of a problem appear.

 

About Our Treatment

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Our rising damp treatments are covered by a 30-year guarantee which can be passed on to future owners of the property.

 

Survey - Through experience and knowledge of damp, a AAA surveyor will carry out the most appropriate rising damp treatment for your property, which will include the installation of a damp proof course.

 

Installation of Damp Proofing - Dependant on the thickness of walls, holes are drilled in the mortar/brick of external and internal walls to a pre-determined depth and at the correct level and spacing between holes. These holes are then injected with a low odour water based silicone damp proofing fluid to reduce the movement of water through the capillaries and create a damp proof course. Internal plasterwork and sand and cement that has been affected by the damp and where Hygroscopic Salt damage is present will always be removed, the wall  will be treated with Anti-Sulphate solution and reinstated with an Anti-Sulphate render and anti-salting skim plaster.

 

Damp Proofing Creme - An alternative system (where suitable) based on a high strength, liquid free, damp proofing formulation. Creme is injected into holes in the mortar joints without the need for an pump. As large amounts of fluid are not added to an already wet wall, the time it takes for the wall to dry is substantially reduced. This then allows quicker re-plastering and re-decoration. Also there is no risk of fluid spillage's which reduces the risk of damage to carpets or flooring.

 

Re-plastering - An SBR, waterproof sand and cement is applied followed by an Anti-Sulphate render and finished with an anti-salting skim plaster.