How to sort crack in ceiling before painting?

kinger8938 · 23 Nov 2022 at 18:31

We are going to paint the bathroom ceiling and walls and we have this long crack across the whole ceiling. I'm assuming just painting over it won't be sufficient

What's the best way to tackle it?

Thanks!

Relentless81 · 23 Nov 2022 at 18:35

In my limited experience filler didn't work as well as caulk

Hyburnate · 23 Nov 2022 at 18:45

It could be where the egde of the board is, you're probably best filling a couple of times and sanding back.

visibleman · 24 Nov 2022 at 13:11

I'm sure there's a proper solution or product but i had the same issue here with a bathroom ceiling and i found fractionally opening the crack and filling with flexible gap filler caulk (that can be painted and sanded), rubbing/sanding it down flat and painting seemed to have sorted it.
Like @Relentless81, i used standard filler first time around and it cracked within a handful of months which i assume is caused either by movement or moisture in the ceiling boards.

jellybeard999 · 25 Nov 2022 at 09:27

Widen the crack and use lightweight filler (it's flexible and foam-like and can cope with expansion and movement unlike the usual polyfiller)

No Nonsense Lightweight Filler White 500ml - Screwfix

Order online at Screwfix.com. Non-shrink, ready-to-use, ultra-light filling paste for large and small gaps. Sandable and paintable after curing. Suitable for use on concrete, plasterboard, brickwork and wood. Non-slump formula. FREE next day delivery available, free collection in 1 minute.

www.screwfix.com