Bathroom ceiling mould and paint issues

[Meandmini3]

We had our first winter in this house last year. Bathroom window was open and extractor fan used appropriately (we never ever had issues in our old house). Black mould appeared on bathroom ceiling. Mainly adjoining the outside wall above the window but along the whole length. I used mould remover a few times. But the paint is flaking and peeling now. What’s the best way to deal with this?

Remove all flakey paint and sand, wash with an anti fungal wash. Use zinser permawhite anti mould paint, It’s amazing. We have an en-suite with no window and the ceiling was always mouldy despite having an extractor and now we get no mould at all. (obviously this will only help if the mould is caused by internal condensation- if water getting in from outside you will still have an issue and will need investigating).

www.screwfix.com/p/zinsser-self-priming-paint-satin-white-1ltr/13040?tc=PT6&ds_kid=92700072652577527&ds_rl=1241687&ds_rl=1245250&ds_rl=1243321&ds_rl=1245250&gclid=CjwKCAjwpKyYBhB7EiwAU2Hn2e5wnKbkmOqPwmTsARSxCIJDkWU_egtNQ4VAq9wrL51Lr4Kw_Ekt2hoCajYQAvD_BwE&gclsrc=aw.ds

Good advice above but dont use the bathroom or kitchen paint...its vinyl based so does not breathe....awful stuff....we use white emulsion and never had damp issues since and no flaking.

@Beach1983 thanks for your detailed reply! I will try this. It is almost certainly an issue with internal condensation because it’s happening in both bathrooms on opposite sides of the house. The people we bought from definitely painted the whole place with cheap white paint as part of the putting it up for sale process!

@earsup are you saying not the anti mould paint the other poster suggested? I’m fairly certain the bathroom has been painted with normal white emulsion like the rest of the house.

Any damp sealant paint is worth a try but really theirs something underlying that's causing the damp . In a house we had years ago in a bathroom of ours they hadn't plastered properly before they tiled .

No...use the anti damp paint...its a really good brand and works...then paint over.