https://www.boards.ie/ Sun, 05 Apr 2026 20:58:00 +0000 en bathroom ceiling — boards.ie - Now Ye're Talkin' https://www.boards.ie/discussion/2056709748/bathroom-ceiling-repair-insulation-plaster-paint Tue, 24 Jul 2012 11:49:12 +0000 DIY gandroid 2056709748@/discussions
I have black mould due to dampness around an extractor fan in a bathroom. I think this is due to the pipe going into attic not being insulated so the moisture is running back down the pipe to the ceiling. I hope to wrap the pipe in some sort of insulation to fix the problem...any suggestions on how to insulate. The pipe is flexible/soft.

My other question relates to repairing the ceiling as some of the plaster immediately around the fan has gone bad so I've chipped it off in the worst spots a couple of inches around where the fan sits in the ceiling. Can I fill this with something like ready mixed polyfilla (which I happen to have) as it's only a small section...or is this a bad idea/unsuitable? If so, what's best?

Also I plan to apply some sort of stain stopper - should this be applied before the plaster or after it dries before painting?

Thanks!!]]>