Do you have a problem damp patch on a chimney breast which will not go away?  Perhaps you have already had roofing or chimney repair works undertaken? We explain why damp on chimney breasts can persist, even after the source of water has been addressed. Problem chimneys can provide a route for water to access the interior of a property.  Water can run down within a chimney flue and then soak into masonry over/around a fireplace, resulting in damp patches internally. The first course of action should be to address the ingress, typically requiring chimney/roofing repair work (or possibly ventilation of redundant flues).   If the damp patches do not go away, please call us and we can provide a solution to this issue.

The problem is hygroscopic salt contamination:

  1. Where fires have burned, chimney flues will be lined with soot.
  2. Soot contains salts which are dissolved by water running down the flue.
  3. Salts held in solution within water, move wherever that water moves to.
  4. Water moving into plaster/finishes, carries salts with it.
  5. When water evaporates out of the plaster, the salts do not evaporate, they reform as a solid within the plaster.

Hygroscopic - means capable of absorbing moisture from the air.

Where hygroscopic salts are present in plaster, they will draw moisture from the air, resulting in visible damp patches, which will persist even when water ingress problems have been fixed. Trace commonly remedy, using systems which isolate new plaster from salt contaminated masonry, so that a dry finish is provided - please call if you require assistance.

Trace Basement and Remedial Systems are longest serving cavity drainage waterproofing specialist in the UK

 

Call us today on: 0800 3899 040

 

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  • “We recently had the pleasure of working with the team from Trace. We found all of the office staff, managers and contractors a pleasure to deal with. Friendly, helpful and knowledgeable team. Very highly recommended !”

    Finalfix Ltd Builders in Cheshire

  • “I couldn't recommend Trace Remedial enough. I was extremely impressed with all of the advise received and delighted with their speedy and professional service. I have even sought some advise months after my initial business with Trace Remedial and they were more than happy to help again. Fantastic!”

    Lolos V R

  • “Newton Waterproofing Systems would highly recommend the services of Trace Basements & Trace Remedial Building Services. We have a fantastic working relationship with Trace. As Newton Specialist Basement Contractors, they are reliable, knowledgeable and skilled in their field.”

    Newton Waterproofing Systems

  • "I can highly recommend Trace. I rang to get a damp survey booked in on a property we were looking to buy. Lewis was very helpful over a couple of phone calls, even ringing back on a day off! Offered advice and help even though we didn't end up going through with the survey. Great service, will use again."

    Nick Renshaw

  • “Just had Trace in to deal with a fairly significant damp problem in our house. The work was completed to a very high standard in the timescale agreed before commencement. Really good communication throughout and the tradesmen were really professional. Left the house as tidy as possible every day and I’m made up with the outcome. I wouldn’t hesitate to recommend to family and friends.”

    Kealey Clarke

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