Wrong paint used on bathroom ceiling

[xpeterpx]

Looking for ways to correct a problem where it seems normal emulsion has been used in our bathroom where it bubbles when someone is having a hot shower.
It's only a small bathroom and we use an open window for ventilation but additional ventilation is being addressed.

Any help with how I need to prepare and repaint to stop the bubbling happening please?
Thank you

 

[johnny2007]

Use a steamer to peel off all the paint and redo.
Otherwise, if you don't want to waste hours, scrape off what's already peeled, prepare the rest as you would normally do and repaint.
It might last a long time or not, luck plays a part here.

 

[xpeterpx]

Ok thank you

 

[foxhole]

Standard emulsion fine for bathroom , if it’s bubbling it’s due to ventilation issues.

 

[opps]

If the bubbles shrink back once the (hot) moisture has dissipated then I suspect that you have vinyl silk or waterbased eggshell on the ceiling rather than vinyl matt.

Oil based eggshell will buy you more time but you need to fit an extractor fan, possibly one with a humidistat built in. The humidistat will ensure that the fan continues to run until the humidity level drops below a predefined limit.

When asked to paint ceilings in shower rooms I specify waterbased eggshell but only provided that the room has a decent extractor.

 

[johnny2007]

I use the bathroom kind of paint for guarantee purposes, however in my own home I always used masonry paint and never had any bubbling/peeling.