Duncan1977
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I live in a 200 yr old house that has had some bad pointing that has been addressed. We have a damp patch ( 3 lights according to a damp meter) directly under the area of bad pointing. We have had dehumidifiers going for 3 months and the level of moisture is not reducing. In the upstairs, the previous owners had put vinyl paint on the walls which was bubbling and weeping. I have stripped the walls and found distemper and old adhesive on a pink skimmed wall. What is behind the skimmed plaster, I have no idea. I am aware that the bricks can hold water if not sealed properly. What doesn't help is that we have only just had the heating fixed in the house. The previous oil boiler was 50 ish yrs old and not always working to keep the property warm. I have had a steamer and sander on to remove the distemper and any residual wallpaper paste to remove any waterproof barriers. It doesn't want to dry out. The room directly underneath is in a similar situation. We have not get a fully vented chimney from when it was blocked off. We have a louvre vent ready to put in if it needs it. The wall was so wet that the wallpaper was lifting off the walls as if it had just been put on. I am stripping back the paint and have found old patches of adhesive, a layer of skimmed pink plaster. Above the skirting board, the wall covering sounds hollow if you tap it and it looks to be bulging and is crumbly in texture. I am not sure if it is a powdered lime mortar or if it was just patched whilst something was still wet. It comes off in chunks with little force. Am I looking at a strip back and replaster?
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