advice of painting over mould in a spare room

If I have a surface that I’d like to paint over, can painting over mould kill it off or does it need to be fully removed before I move on to repainting my walls and ceiling? It's the spare room in question and mould has grown quite a lot. It looks awful and we’d like to get rid of it as soon as possible. I thought I would ask whether mould can simply be painted over and ‘suffocated’ if you’d like or do we need to get rid of it first? I’m planning to repaint these surfaces either way as they’re in need of an update.

Asked by Abdul on 21st Aug 2020
Expert Trade Answers
"The question is not can I paint or remove mould,
I would be more concern is why is there mould growing in my room ???
I would suggest finding what is causing the mould which could be a possible crack on the outside of the house.
Painting over mould doesn’t get rid of mould. Wiping with bleach doesn’t get rid of mould. These are all short term fixes.
If you think of living in those conditions or sticking children in there, then expect to have health issues in the next few years."
Answered on 22nd Aug 2020 - Member since Aug 2020 - report
"The mould will have to be removed before painting as if you just paint over it with emulsion it will still come through, the mould needs to be treated properly then before painting over it a anti stain or anti mould paint should be applied twice then painted over with emulsion hope that helps."
Answered on 21st Aug 2020 - Member since Aug 2020 - report
"I'd remove all mold and find sorce of problem before painting over otherwise you will have a reoccurring problem"
Answered on 21st Aug 2020 - Member since Jun 2018 - report

Painting over mould won’t get rid of it it will just carry on growing underneath. All it will do is just hide it and it won’t solve the problem of the mould.

You will have to wash it down with a mould fungicidal wash.

Try to get rid of all of it if you can"
Answered on 21st Aug 2020 - Member since Jul 2019 - report
"Wash the wall down with a bleach type spray then use a mould inhibitor first, Light rub down & use a anti mould paint..."
Answered on 21st Aug 2020 - Member since Feb 2019 - report
"Hi... you absolutely, definitely must not just paint over the mould. You must completely remove it and kill all the spores, otherwise it will just come back through new paint within days.... sometimes even hours.
Get yourself a good quality mould killer and treat and allow to dry at least 3 times. Then sand the affected wall right back to remove any left over staining, repair walls if needed and then you can repaint. Use a moisture resistant paint as I'm assuming you have a problem with condensation in said room.... remedying the cause of the condensation will always be the best way to prevent the mould coming back."
Answered on 21st Aug 2020 - Member since May 2019 - report
"Hi, yes you do need to kill the mould as it may return through the paint. Use a specific mould remover or bleach solution, and rinse well before painting. You may need to use a stain block as although the mould is dead, it may stain the surface.
I hope this helps."
Answered on 21st Aug 2020 - Member since Jun 2020 - report
"Mould should always be cleaned off using a mould cleaning product or bleach, as it will reappear if not also mould is dangerous to health."
Answered on 21st Aug 2020 - Member since Aug 2018 - report
"wash down with sugar soap then use a paint with anti mould properties"
Answered on 21st Aug 2020 - Member since Feb 2020 - report
"I would suggest sanding any mould away and then using damp proof paint and then painting over that once it has dried"
Answered on 23rd Aug 2020 - Member since Apr 2020 - report
"Don't paint over it ,clean it off first but find out the cause it could be damp from outside or a loose gutter or drainpipe, but probably just bad ventilation. Open the windows and get some moisture gel or a humidifier when sure it has gone then paint . Use damp seal or oil based undercoat first the emulsion or gloss"
Answered on 21st Aug 2020 - Member since Aug 2019 - report
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