It depends on what you did to remove the mould. It is not gone, you know that? So what did you do?
Ventilate (open windows). I lived in a mould ridden place and nothing I did got rid of it. The best we ended up with was painting over it, but I don’t think that’s recommended. Probably best to look for products that might kill it but certainly trying to limit the humidity in the space would be good.
You need an anti-fungal spray, and to reduce the humidity in the room.
Dehumidifier, rock salt, plants. Open windows.
Before painting use a stain killer paint as primer.
All the solutions I read here are provisional.
If you really want to get rid of the mold, sell your house and move to Spain.
That radiator looks quite small, single panel non convector by the looks of it. That could probably be upgraded to a double panel double convector at the same dimensions to massively upgrade its output and efficiency.
Also, the ventilation of the area is absolutely essential. Mould is just when warm air hits a cold surface and condensation occurs I.e water droplets form.
Having the area well heated with good ventilation will massively reduce condensation.
In the mean time, HG Mould Spray is the best on the market for killing mould
What temperature do you keep your house? It should never go below 16° or mould can grow. Do you air the room regularly? Good to open the windows twice a day for ~10 minutes. Don’t leave it open for longer in the winter or the walls get cold and water condenses on them.
Bleach can remove the colour but doesn’t kill the mould. You need to kill the mould first and then can clean it with bleach.
Do you dry clothes inside? Good to use a dehumidifier in that case.
[deleted]
That’s dampness. No amount of dehumidifying, opening windows etc. will control that
Usual prevention: more air, less humidity, more heat. A dessicant dehumidifier blowing up that wall will prob fix that. Bout 150e but it works better at temps under 20c, adds heat to room (rather than the cooling type) and moves air, upshot is you can dry clothes indoors and the running cost is negated ime.
And stay on stop of it with bleach n anti mold paint or it’ll really dig itself in.
But you may also have more serious external issues. If the exterior wall is damp n cold it’s a harder fight which is easier when that’s treated externally with proper waterproofing. I sorted out my flat in all areas except one and on talking to the landlord he remembered he hadn’t treated the external wall in that patch hence the mold.
Dehumidifier on high. Run a fan to move air around and increase ventilation by opening windows.
Need proper ventilation or it will comback.
Ivy plants help. I’d be painting it with bathroom antimould paint
Is this an old corporation terraced house? Rounded corner looks the exact same. Put a vent in the wall and keep it open. Only way
Use the mould remover foam and pure bleach mixed with hot water and a tea towel or face cloth type material to scrub all the black off. Take your time to remove it all properly(yes hard work but spend a day doing it). Then dry off the wall with a dry towel. Then paint over the wall and ceiling( I’m sure your landlord cant say much to you for painting over a mouldy wall)?? I think you can get special mould resistant paint or undercoat which might help.
Then as others have sugested get a dehumidifier and try open the windows everyday. Check that the air vents in the walls are not blocked, maybe the previous tenants blocked them(a lot of foreign tenants from warm countries do this). I once found clear plastic glued to the outside of the vent that was impossible to see unless you were inches away from it. But also unscrew the vents and check inside that they have not been stuffed with old clothing. And finally how thick are your curtains? If they are really heavy and thick(blocking out all sunlight) try replacing them with lighter/ airier curtains that don’t block 100% sunlight from getting through. And obviously keep the curtains open to allow direct sunlight into the room and don’t keep them closed during the day time! I hope this can help.
What is on the other side of the wall?
Dehumidifier electric one but you can also get the silca gel ones, Ventilation, leave windows open for as long as possible!, mould removal spray, air purifier with HEPA filter. Do not dry clothes inside, if you have to then run the dehumidifier at the same time. And I see you’re renting but definitely tell your landord about it and suggest anti mould paint!
Main Issue is moisture control. Kinda need more information to help you. How do you dry clothes? Open windows. Vacuum condensation from windows. Shower in the morning. Where you can open windows during the day. Dehumidifier will help the most.
Is the room upstairs at the back of the house. Steam from cooking etc will naturally travel to the coldest room and condense. Close doors and vent kitchen
You get a mould remover spray, then theres a spray that comes out white and creates a barrier to stop the mould regrowing. Woodies and hardware stores have it
So warm moist air is entering the room and condensing on the cold wall. Therefore either warm the room up and keep it warm (yeah right) or leave a window open to let the air out. Alternatively dehumidifier will work. Live in a cottage and have similar issues. Also you obviously have some insulation above – is that the ceiling to the loft or upstairs. Load more insulation above would help.
See those dark patches in the wall after you clean it OP? The mould is in the wall. So this solution will only ever be provision.
The only solution is to change home. I’m not kidding, the mould is essentially unkillable without deep expensive works, which are totally useless if the house is still wet and cold and without natural lights (UV kills mould).
Better thing you can do is to find a better room.
Keep in mind black mould is very bad for your health.
In ireland…. it should be a landlords responsibility to provide a dehumidifier to the tenant.
26 comments
It depends on what you did to remove the mould. It is not gone, you know that? So what did you do?
Ventilate (open windows). I lived in a mould ridden place and nothing I did got rid of it. The best we ended up with was painting over it, but I don’t think that’s recommended. Probably best to look for products that might kill it but certainly trying to limit the humidity in the space would be good.
You need an anti-fungal spray, and to reduce the humidity in the room.
Dehumidifier, rock salt, plants. Open windows.
Before painting use a stain killer paint as primer.
All the solutions I read here are provisional.
If you really want to get rid of the mold, sell your house and move to Spain.
That radiator looks quite small, single panel non convector by the looks of it. That could probably be upgraded to a double panel double convector at the same dimensions to massively upgrade its output and efficiency.
Also, the ventilation of the area is absolutely essential. Mould is just when warm air hits a cold surface and condensation occurs I.e water droplets form.
Having the area well heated with good ventilation will massively reduce condensation.
In the mean time, HG Mould Spray is the best on the market for killing mould
What temperature do you keep your house? It should never go below 16° or mould can grow. Do you air the room regularly? Good to open the windows twice a day for ~10 minutes. Don’t leave it open for longer in the winter or the walls get cold and water condenses on them.
Bleach can remove the colour but doesn’t kill the mould. You need to kill the mould first and then can clean it with bleach.
Do you dry clothes inside? Good to use a dehumidifier in that case.
[deleted]
That’s dampness. No amount of dehumidifying, opening windows etc. will control that
Usual prevention: more air, less humidity, more heat. A dessicant dehumidifier blowing up that wall will prob fix that. Bout 150e but it works better at temps under 20c, adds heat to room (rather than the cooling type) and moves air, upshot is you can dry clothes indoors and the running cost is negated ime.
And stay on stop of it with bleach n anti mold paint or it’ll really dig itself in.
But you may also have more serious external issues. If the exterior wall is damp n cold it’s a harder fight which is easier when that’s treated externally with proper waterproofing. I sorted out my flat in all areas except one and on talking to the landlord he remembered he hadn’t treated the external wall in that patch hence the mold.
Dehumidifier on high. Run a fan to move air around and increase ventilation by opening windows.
Need proper ventilation or it will comback.
Ivy plants help. I’d be painting it with bathroom antimould paint
Is this an old corporation terraced house? Rounded corner looks the exact same. Put a vent in the wall and keep it open. Only way
Use the mould remover foam and pure bleach mixed with hot water and a tea towel or face cloth type material to scrub all the black off. Take your time to remove it all properly(yes hard work but spend a day doing it). Then dry off the wall with a dry towel. Then paint over the wall and ceiling( I’m sure your landlord cant say much to you for painting over a mouldy wall)?? I think you can get special mould resistant paint or undercoat which might help.
Then as others have sugested get a dehumidifier and try open the windows everyday. Check that the air vents in the walls are not blocked, maybe the previous tenants blocked them(a lot of foreign tenants from warm countries do this). I once found clear plastic glued to the outside of the vent that was impossible to see unless you were inches away from it. But also unscrew the vents and check inside that they have not been stuffed with old clothing. And finally how thick are your curtains? If they are really heavy and thick(blocking out all sunlight) try replacing them with lighter/ airier curtains that don’t block 100% sunlight from getting through. And obviously keep the curtains open to allow direct sunlight into the room and don’t keep them closed during the day time! I hope this can help.
What is on the other side of the wall?
Dehumidifier electric one but you can also get the silca gel ones, Ventilation, leave windows open for as long as possible!, mould removal spray, air purifier with HEPA filter. Do not dry clothes inside, if you have to then run the dehumidifier at the same time. And I see you’re renting but definitely tell your landord about it and suggest anti mould paint!
Main Issue is moisture control. Kinda need more information to help you. How do you dry clothes? Open windows. Vacuum condensation from windows. Shower in the morning. Where you can open windows during the day. Dehumidifier will help the most.
Is the room upstairs at the back of the house. Steam from cooking etc will naturally travel to the coldest room and condense. Close doors and vent kitchen
https://youtu.be/TIDb-pdOnXM
You get a mould remover spray, then theres a spray that comes out white and creates a barrier to stop the mould regrowing. Woodies and hardware stores have it
So warm moist air is entering the room and condensing on the cold wall. Therefore either warm the room up and keep it warm (yeah right) or leave a window open to let the air out. Alternatively dehumidifier will work. Live in a cottage and have similar issues. Also you obviously have some insulation above – is that the ceiling to the loft or upstairs. Load more insulation above would help.
See those dark patches in the wall after you clean it OP? The mould is in the wall. So this solution will only ever be provision.
The only solution is to change home. I’m not kidding, the mould is essentially unkillable without deep expensive works, which are totally useless if the house is still wet and cold and without natural lights (UV kills mould).
Better thing you can do is to find a better room.
Keep in mind black mould is very bad for your health.
In ireland…. it should be a landlords responsibility to provide a dehumidifier to the tenant.
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OP get a good dehumidifier. And atleast 20L