Damp proofing, waterproofing, woodworm and dry rot specialists, Peter Cox UK.


Rising Damp & Damp Proofing

What is Rising Damp?
The problem of rising damp can arise for various reasons - the failure of an existing damp proof course (dpc), bridging due to the raising of external ground or internal floor levels, or in older buildings, the complete absence of a damp proof course.

Brick, stone and mortar are porous allowing damp from the ground to rise by capillary action, carrying with it ground salts including chlorides and nitrates.

Salts left by rising damp can absorb moisture from the atmosphere leading to wall dampness in conditions of high relative humidity. Also the cyclical nature of crystallisation and rewetting can ruin decorations and break down internal plaster.

Learn more with our free guide to rising damp
DryWall Damp Proof Course
Peter Cox have been providing solutions to rising damp for over 40 years using low hazard, water based ingredients. Current alternative systems include -

Silane Diffusion
Utilising a concentrated thixotropic silane / silicone ‘cream’ to form a barrier against rising damp. As the cream slowly diffuses, it releases a silane vapour which reacts with the silica in the masonry to form a water repellent resin.

Siliconate Transfusion
The gravity-fed transfusion units allow a slow, even distribution of the siliconate fluid into the wall and to form a damp proof barrier, but unlike pressure injection, there is no wastage via hidden fissures or voids
Siliconate Injection
This method is sometimes recommended, primarily for 112mm single brick walls. The fluid is injected into the wall with single lance under low pressure to form the barrier against rising damp
Installing DryWall damp proof course

It is important to note that the provision of a barrier against rising damp will only prevent further moisture rising from the ground and that all other sources of dampness must be eliminated as well.

DryWall Silane Diffusion Dpc - beware inferior copies!

Rising damp problems? - Ask for a survey

Read/download our guide to rising damp

 

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