Cracking paint in bathroom. Need advice please.

Penny_Farthing_2

Hi
Sorry - long post but I'd really appreciate some advice.

Last sumer I had the downstairs bathroom skimmed and I painted it with thinned emulsion and a few coats of Johnstones Advanced Durable matt emulsion. Stupidly, I didn't have an extractor fan fitted but I have big windows that I open after showering.

In the the corner opposite the shower (2 external walls) I have found horizontal cracks in the paint. I've scraped them back and no more have appeared in the last few weeks.

I've stopped using the bathroom for the plaster underneath to dry out but even after a warm week with the windows open I can see lines in the plaster that look as if someone's brushed a thin line of dilute orange paint inside where I've scraped the paint away.

Please does anyone know whether this is just due to no fan?
To fix it, do I just sand, use oil based undercoat and then repaint?
And get a fan!
Should the Johnstones paint I have do the job or should I get a different brand?

All ideas welcome.
Thanks

DVardysShadow

Penny_Farthing wrote: »

Hi
Sorry - long post but I'd really appreciate some advice.

Last sumer I had the downstairs bathroom skimmed and I painted it with thinned emulsion and a few coats of Johnstones Advanced Durable matt emulsion. Stupidly, I didn't have an extractor fan fitted but I have big windows that I open after showering.

.....

Should the Johnstones paint I have do the job or should I get a different brand?

Personally, I think Johnstones are fine for paint - your problem IMO is using emulsion in a bathroom. I would use an eggshell.

Penny_Farthing_2

Thanks
i like their paint too. Goes on nicely. Is eggshell more resistant to moisture then?

DVardysShadow

Absolutely. It has a smooth finish like gloss, but is fairly matt in appearance. If you wipe id down, you get the sense that you are cleaning it off whereas with emulsion, I always feel I am wiping dirt in.

Penny_Farthing_2

Right oh. When the shop opens tomorrow, I'll go down there. Downside is I'll have to redo the whole room rather than those walls but if the paint stays on, it's probably worth it!