Rising Damp (Salt Damp)
Rising damp (or Salt Damp, as it is known in many parts of the world) is not the most common form of dampness encountered in buildings; this is left to condensation. However, a high proportion of older buildings are affected by rising damp to some degree or another.
Rising damp in buildings may be defined as the vertical flow of water up through a permeable wall structure, the water being derived from ground water. The water rises through the pores (capillaries) in the masonry by a process loosely termed "capilliarity." In other words the masonry acts like a wick
Treatment of rising damp (known as "damp-proofing" or "dampcoursing") typically involves the installation of a chemical DPC, such as Dampcheck Plus using specialist injection equipment, followed by replastering using a salt retardant additive such as Renderguard Gold. However, with the introduction of Dryzone Damp-proofing Cream, the process has now been simplified.
Rising damp through solid floors should be treated using our Oldroyd Xs Flooring Membrane or ECS epoxy floor coating.
Free Damp-Proofing Book
The identification and treatment of rising damp is dealt with in full in our free publication, "Rising Damp and its Control." which can be downloaded from this page in Adobe Acrobat (pdf) format.
Dryzone damp-proofing cream can be specified under the following clause:
Visit our case studies page for a complete list of case studies available on this website.
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