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I have some damp that in the base walls which is apparent after heavy rain, the pointing looks fine but the plaster inside is wet. Is it rising damp?
Anonymous user 01/03/2024 - 2.41 PM
The damp is in patches is in some parts around the bay. Seems particularly bad in the corner. Damp seems to have wicked to an internal wall also. We have recently added additional ventilation bricks as they were covered by turf on the outside. We have dug a small trench around the outside of the bay though yet to finish with drainage pipe/shale. I forgot to mention, it has rained before and the damp has not been visible. The house was left empty for 1 day and the temperature dropped, not sure now whether it is condensation and not rising damp!
Are you a tradesperson and able to answer this question?
4 Answers
Anonymous user
Hi. Yes sounds like you need a new damp course to the bay , it is as you suspect rising damp and will require plaster removed and replaced to allow for a professional job also the external ground level should
Be 150mm below your damp proof course. Also if it is an older property you may have sandstone cills which are notorious for penetrating damp this would be visible higher up the Walls . This would require sealing and treating before plaster etc. .
Hope this helps. Emmpire
Answered10 October 2011
3
Anonymous user
It is impossible to diagnose your problem without a thorough inspection of your property and it's individual circumstances. See my other answer with a description of 'cold bridging'.
Do not follow any course of action until someone who knows what they are talking about has had a look or it could prove both costly and unnecessary.
Mike Davison cssw
Dryspace Maintain Ltd
Answered13 October 2011
3
N England Joinery
Rating: 5 out of 5
once you have damp it will take days to dryout / i suggest to take off your skirting boards carefully and chop approx 40mm off the plaster on the wall all long the bottom where the damp is and refix the skirting board back on as this will resolve the problem
Answered10 October 2011
2
Anonymous user
Hi yes it sounds like rising damp. We would chop out 2 or 3 courses of brickwork in and out and install a polythene dpc within the new brickwork. This is a guaranteed fix unlike chemical injection which is reliant on the quality of the bricks or mortar( which are usually poor!) hope this helps Shaun
Answered10 October 2011
1