mouldy bathroom ceiling

I had a similar problem, I overboarded the ceiling and fresh bathroom paint.

 

i would say overboarding is a bit extreme, presuming it is a plastered plasterboard ceiling i would scrape sand the offending area or whole ceiling if you see fit mist coat any bare plaster and then paint with a good quality emulsion which should be fine unless your fan packs up again

 

Due to it only being a bathroom, so not that big an area, over boarding was easier and quicker than scraping off the flaking paint and a lot less mess, used tapered joint boards so just filler over the joints/screw heads not a whole ceiling skim and paint, job done in a day easy, even allowing time for filler to dry.

 

Zinsser Perma White. I've used it many times. A few years down the line and spot of mould.

 

^^^^ + 'not a' ?

Mr. HandyAndy - Really

 

I can guess why Phil over-boarded - if there are multiple layers of paint, it can be a 'mare to get it looking good, sanding and filling the edges of the paint layers so's they can't be seen.

But if that ain't an issue, Brommy, if there is only a thin paint layer up there and you can scrape off all the loose bits and get it all looking smooth, then a good quality product like Zinsser (never tried it, but always good reviews) should do the trick.

Don't forget there are also 'bathroom' paints in most paint ranges.