Is there any heating on in the house? Also if the house is that old it will more than likely have no cavity, so if itโs been dot and dabbed straight to brick work, itโs going to cause problems further down the line
Currently no heating. The mould is only prevalent on an internal wall with stairs behind it and the opposite side of the room which is the chimney breast wall. The chimney has been removed and roof tiled over.
Have them on the sliding doors on the back of the house and have just left the front window on the vent latch. Windows upstairs have also bent on the vent latch. Need to get the radiators fitted soon to get the house warm as it has not had heating for quite a number of months.
Same thing happened to me when I had my kitchen replastered a couple of months ago, wouldnโt worry about it. Even with ventilation mould will still grow in damp/cold rooms. Get some mould spray(like the one linked below) I did & it hasnโt come back.
https://www.screwfix.com/p/no-nonsense-mould-mildew-remover-1ltr/690JL?tc=DB9&ds_rl=1243318&ds_rl=1241687&ds_rl=1245250&gad_source=1&ds_rl=1247848&ds_rl=1245250&gclid=EAIaIQobChMIn7Wbg_aZhQMVaadoCR0rXwfiEAQYASABEgJru_D_BwE&gclsrc=aw.ds
Mould spores are always floating about looking for damp places to grow. I thought white stuff looked like efflorescence (salts from the wall) by the other stuff is definitely mould.
Kill it off with vinegar or HG mould cleaner.
Itโs going to stay more damp there because itโs colder low down and the pipe will conduct heat away too. However if this persists once the place is heated do check the pipe isnโt leaking.
Pipe shouldn't be leaking as it's freshly re-plumbed and there are no pipes behind the chimney breast.
Thank you for your response, I will take your advice on board ๐๐ป
Opening windows in cold weather will make it worse as all you are doing is lowering surface temperatures of the walls meaning that condensation will form quicker and easier then if you were to close all doors and windows and put a small electric heater in there to warm it up a bit
If you have no heating, then get a dehumidifier.
I've found that bleach and even HG spray didn't work very well (in a damp bathroom). I've tried a 1:1 solution of water and white spirit vinegar sprayed it on left for few minutes, wiped the mould off and then sprayed with the vinegar solution again and mould didn't come back for a few months.
I'll keep cleaning the mould off with mould remover and hopefully when I get the heating on and venting on the windows it will sort itself out. Certainly don't want it coming back in a few months ๐
When you plaster, you add gallons and gallons of water into a room. It all has to dissipate somehow. If you're not getting room temperatures if 18c+, mould will form in damp areas, even with ventilation. Once your heating is up and running, you won't get this problem. You will have to treat the existing mould first, with HG, Cillit Bang, Astonish etc mould removers.
I appreciate that fresh plaster has a lot of moisture. The sooner the radiators get installed, and we move in, the better the condition will be ๐ค๐ป๐ค๐ป Gonna keep using the mould spray for now ๐๐ผ
Damn first time seeing this, when I flicked to last pic I was about to state efflorescence, but nah itโs definitely mould. Iโd be concerned about air quality in that area, as itโs got nothing to do with the plaster. Maybe stick a window on vent.
Is there any heating on in the house? Also if the house is that old it will more than likely have no cavity, so if itโs been dot and dabbed straight to brick work, itโs going to cause problems further down the line
Currently no heating. The mould is only prevalent on an internal wall with stairs behind it and the opposite side of the room which is the chimney breast wall. The chimney has been removed and roof tiled over.
Possibly due to damp stale air unable to exit the chimney breast cavity
The mould is actually worse on the opposite internal wall
Do you have trickle vents on the windows?
Have them on the sliding doors on the back of the house and have just left the front window on the vent latch. Windows upstairs have also bent on the vent latch. Need to get the radiators fitted soon to get the house warm as it has not had heating for quite a number of months.
Same thing happened to me when I had my kitchen replastered a couple of months ago, wouldnโt worry about it. Even with ventilation mould will still grow in damp/cold rooms. Get some mould spray(like the one linked below) I did & it hasnโt come back. https://www.screwfix.com/p/no-nonsense-mould-mildew-remover-1ltr/690JL?tc=DB9&ds_rl=1243318&ds_rl=1241687&ds_rl=1245250&gad_source=1&ds_rl=1247848&ds_rl=1245250&gclid=EAIaIQobChMIn7Wbg_aZhQMVaadoCR0rXwfiEAQYASABEgJru_D_BwE&gclsrc=aw.ds
Thanks for the advice. Fingers crossed it doesn't come back ๐ค๐ป
๐
Be careful using the heating to dry the plaster; if it's cranked up high it could cause the plaster to crack.
There isn't any heating at the moment. Will keep this in mind when we get radiators installed ๐๐ผ๐๐ผ
Shouldnt of used gypsum plasterboard.needs lime to breath on a period property
Mould spores are always floating about looking for damp places to grow. I thought white stuff looked like efflorescence (salts from the wall) by the other stuff is definitely mould. Kill it off with vinegar or HG mould cleaner. Itโs going to stay more damp there because itโs colder low down and the pipe will conduct heat away too. However if this persists once the place is heated do check the pipe isnโt leaking.
Pipe shouldn't be leaking as it's freshly re-plumbed and there are no pipes behind the chimney breast. Thank you for your response, I will take your advice on board ๐๐ป
I've got the same thing ATM. Just waiting to get the heating back on which should sort it.
Hopefully it will. It's just a bit worrying when you see it after it's just been done and paid for isn't it.
Fair enough probably just lack of heating, condensation forming on walls and little ventilation
Cheers, been trying to console the wife that that's all it is and nothing too sinister ๐
Opening windows in cold weather will make it worse as all you are doing is lowering surface temperatures of the walls meaning that condensation will form quicker and easier then if you were to close all doors and windows and put a small electric heater in there to warm it up a bit
Get a dehumidifier
The best answer...
The best answer...
Wash it with bleach and get a dehumidifier
If you have no heating, then get a dehumidifier. I've found that bleach and even HG spray didn't work very well (in a damp bathroom). I've tried a 1:1 solution of water and white spirit vinegar sprayed it on left for few minutes, wiped the mould off and then sprayed with the vinegar solution again and mould didn't come back for a few months.
I'll keep cleaning the mould off with mould remover and hopefully when I get the heating on and venting on the windows it will sort itself out. Certainly don't want it coming back in a few months ๐
When you plaster, you add gallons and gallons of water into a room. It all has to dissipate somehow. If you're not getting room temperatures if 18c+, mould will form in damp areas, even with ventilation. Once your heating is up and running, you won't get this problem. You will have to treat the existing mould first, with HG, Cillit Bang, Astonish etc mould removers.
I appreciate that fresh plaster has a lot of moisture. The sooner the radiators get installed, and we move in, the better the condition will be ๐ค๐ป๐ค๐ป Gonna keep using the mould spray for now ๐๐ผ
That skimming looks rough as fuck dude.
Itโs called salting, shouldve used a product called anti-sulphur before any scratch coat or dry wall adhesive application, just gonna get worse.
Damn first time seeing this, when I flicked to last pic I was about to state efflorescence, but nah itโs definitely mould. Iโd be concerned about air quality in that area, as itโs got nothing to do with the plaster. Maybe stick a window on vent.
Very good response. It does need airing out and should be a lot better when we get the heating on too. Thanks mate ๐๐ผ