Help needed20 Posted December 14, 2020 Share Posted December 14, 2020 Have this damp in room and noticed the wall vent has no ducting going through it any advice ? Link to comment Share on other sites More sharing options...
ToughButterCup Posted December 14, 2020 Share Posted December 14, 2020 Just to clarify: the vent isn't a vent, it's just a wall ornament.... is that what you are saying? Link to comment Share on other sites More sharing options...
MikeGrahamT21 Posted December 14, 2020 Share Posted December 14, 2020 I'd probably guess at penetrating damp or rising damp, especially since the radiator is so close. Even if that air vent was working (if it currently isn't), it probably wouldn't fix that problem. What type of wall construction is it? Damp Proof Membrane in place? Pointing on the outside in good condition? Link to comment Share on other sites More sharing options...
Help needed20 Posted December 14, 2020 Author Share Posted December 14, 2020 Just a hole in wall with vent cover either side , wall outside is in good condition Link to comment Share on other sites More sharing options...
TonyT Posted December 14, 2020 Share Posted December 14, 2020 Any downpipes, guttering on the other side that has leaks? what’s the wall construction? What’s the floor construction? under floor vents clear if any? what’s the room used for? Drying clothes with excessive moisture? any extractor fans? is the heating used in the room? https://www.amazon.co.uk/Rempro-Neutraliser-Anti-sulphate-Tanking-Treatment/dp/B075HLS6L4/ref=asc_df_B075HLS6L4/?tag=googshopuk-21&linkCode=df0&hvadid=255660170781&hvpos=&hvnetw=g&hvrand=17943681255650039812&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9046864&hvtargid=pla-427215058929&psc=1 For removing salts. Link to comment Share on other sites More sharing options...
Help needed20 Posted December 14, 2020 Author Share Posted December 14, 2020 Exterior wall with the vent is a cavity wall , concrete floor , room is extended kitchen, heating goes on no clothes put in this area , no downpipes or anything with leaks Link to comment Share on other sites More sharing options...
ProDave Posted December 14, 2020 Share Posted December 14, 2020 Photo of the other side of that wall, which presumably is outside? Link to comment Share on other sites More sharing options...
Mr Punter Posted December 14, 2020 Share Posted December 14, 2020 The wall looks quite new. Maybe saturated / badly installed insulation and / or poor pointing. Link to comment Share on other sites More sharing options...
Help needed20 Posted December 14, 2020 Author Share Posted December 14, 2020 When I get home ill post more pics etc , I shall be taking plaster off today as a day off Link to comment Share on other sites More sharing options...
MikeGrahamT21 Posted December 14, 2020 Share Posted December 14, 2020 42 minutes ago, Help needed20 said: Exterior wall with the vent is a cavity wall , concrete floor , room is extended kitchen, heating goes on no clothes put in this area , no downpipes or anything with leaks What about the roof? I wonder if there is a leak over the cavity and water is dripping all the way down Link to comment Share on other sites More sharing options...
Help needed20 Posted December 14, 2020 Author Share Posted December 14, 2020 Link to comment Share on other sites More sharing options...
MikeGrahamT21 Posted December 14, 2020 Share Posted December 14, 2020 I have to question rising damp there. Looks like the render has go over the top of the DPC with no break in it. That left hand wall looks very damp also, paint peeling etc. How wet is the ground around there? Digging a trench next to the wall and filling with pea gravel may help, but i'd say a DPC bridge is going to be an even bigger issue. 1 Link to comment Share on other sites More sharing options...
Help needed20 Posted December 14, 2020 Author Share Posted December 14, 2020 Just started getting plaster off , the bonding coat is so thick , is this normal ? Link to comment Share on other sites More sharing options...
joe90 Posted December 14, 2020 Share Posted December 14, 2020 I,m with @MikeGrahamT21 above, where is the damp course?, is the outside ground 150mm below damp course, that brickwork looks sodden!. Link to comment Share on other sites More sharing options...
MikeGrahamT21 Posted December 14, 2020 Share Posted December 14, 2020 2 minutes ago, Help needed20 said: Just started getting plaster off , the bonding coat is so thick , is this normal ? Yeah that looks roughly about the same thickness as what I took off in my 1960's bungalow, around 15mm thick. Link to comment Share on other sites More sharing options...
TonyT Posted December 14, 2020 Share Posted December 14, 2020 External levels look too high 1 Link to comment Share on other sites More sharing options...
TonyT Posted December 14, 2020 Share Posted December 14, 2020 Dig up the concrete outside, dig down install stones wrapped in landscape fabric to aid removal of water from wall, see if you can do this along the perimeter of the wall. French drain may be required. allow time for wall to dry Link to comment Share on other sites More sharing options...
joe90 Posted December 14, 2020 Share Posted December 14, 2020 8 minutes ago, TonyT said: External levels look too high Yes, if those vents line up the outside concrete is about level with the wooden floor!!!. No step at the door etc. Link to comment Share on other sites More sharing options...
ADLIan Posted December 14, 2020 Share Posted December 14, 2020 External wall becoming internal? No vertical dpc? 1 Link to comment Share on other sites More sharing options...
ProDave Posted December 14, 2020 Share Posted December 14, 2020 I expected the wall with the radiator to be an external wall. But looking at the outside picture it must be an internal wall? What is the other side of the wall with the radiator? Agreed the render should not go down into the ground like that, though it is a common fault. That was exactly what caused the damp in a previous 1930's house that I had. Once I chopped off the lower render, exposed the perfectly good slate DPC, ended the render just above the DPC it all dried out nicely. Link to comment Share on other sites More sharing options...
Help needed20 Posted December 14, 2020 Author Share Posted December 14, 2020 Radiator wall is external , further investigation has found no dpc in affected are , I believe there is multiple culprits here Link to comment Share on other sites More sharing options...
Help needed20 Posted December 14, 2020 Author Share Posted December 14, 2020 Link to comment Share on other sites More sharing options...
Mr Punter Posted December 14, 2020 Share Posted December 14, 2020 Do you think that is a bricked up fireplace? Link to comment Share on other sites More sharing options...
Help needed20 Posted December 14, 2020 Author Share Posted December 14, 2020 I think I may have found the issue , neighbour has a raised flower bed which is directly on the corner I have the issue . 2 Link to comment Share on other sites More sharing options...
joe90 Posted December 14, 2020 Share Posted December 14, 2020 I hope he is amenable ? Link to comment Share on other sites More sharing options...
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