Rising Damp
Rising Damp

Salt Damp - Hygroscopic Salt Contamination

Salt contamination is not only caused by Rising dampness.



Other sources of salt contamination of masonry and plaster are:



  • Combustion gases in chimney flues contain traces of acids which form chlorides, nitrates and sulphates in the masonry. This is a common source of contamination at the surface of chimney breasts and reveals at all levels (upper floors as well as ground floor level).
  • Prolonged leakage of tap water or central heating water.
  • Leakage of soil water or contamination with urine. (Salts from animal urine are often responsible for salt damp problems in barn conversions/stables etc.
  • Direct rain penetration


As these salts are often hygroscopic (Moisture Attracting), patches of dampness may appear and disappear depending on the weather. This can sometimes be confused with a leak occuring. This is why it is important to have a qualified surveyor investigate.


We have a range of specifications designed to deal with salt contamination. These will result in a dry and protected surface.



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CK Walker Damp & Timbers have been providing: Damp Proofing, Condensation Control, Re-Plastering, fungal decay & Woodworm solutions throughout Derbyshire & Nottingham since 1991. CK Walker LTD trading as CK Walker Damp & Timbers – Company Number 9072842 - Registered Office – Old Church Institute, Main Street, Mapperley, Ilkeston, Derbyshire, DE7 6BY All images and text on this website are protected by copyright. 2021 For all your damp proofing & timber treatment needs in Derbyshire & Nottingham, Call us on 01332 960160 or 01629 352019