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Damp Proofing

Damp coming through a stonework gable end

Anonymous user 14/03/2024 - 2.30 PM

Dear Sir, I've recently acquired an old mill, circa 1825, made from local stone. We have some damp coming through a stone wall gable end causing discolouration of paint and flaking paint. There doesn't appear to be any compromise to the stonework or lime mortar. Can this be treated by applying a sealant to the exterior and/or interior wall? Many thanks Mike Clements

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2 Answers

Cadvis3d Limited

Rating: 5 out of 5
Huddersfield
damp can be tricky. First you need to make sure it is damp striking through the wall or just condensation from the inside. Clean the effected area and sellotape a piece of foil to the wall. Leave it a week or two and then check the foil. If moisture is evident on the face of the foil its condensation, it its on the back of the foil its striking through. Sealants are not that effective...its best to locate the root cause of the damp and if possible install a new damp course (if rising damp). A good builder should be able to rectify this for you.
Answered29 June 2013
0

JWSurveys Ltd

Rating: 5 out of 5
Hythe
Ideally you would want this assessed by a surveyor who would have an holistical approach and provide a report if exactly what's going on. I would be careful of sealants or modern cement based products.
Answered30 June 2013
0