Gap filling classic

[limakilo]

Hi guys,
Doing some decorating and after removing the wall paper, found a nice gap between the plaster and pvc frame. It is 10mm deep, and 15mm wide at the biggest points. It's uniform all the way around. I was just going to fill it with some filler up to the pvc, and then use some caulk to seal/tidy the joining point. Would that be the best way about doing it? It's sealed on the outside and no drafts or oblivious gaps present to the outside from inside.

Any recommended fillers? I imagine it's a bit to large for standard crack filler from s tube?

Any help would be great guys

 

[gregers]

im assuming the original windows fitted up to the plaster line?

if its not too deep then wet/pva it and fill it with finish plaster.

 

[limakilo]

im assuming the original windows fitted up to the plaster line?

if its not too deep then wet/pva it and fill it with finish plaster.

I think those windows where put in with the extension to be honest. The deepest point is 15mm, finishing plaster should be fine for that?

 

[Doggit]

Gyproc One coat plaster would be a better option than finishing plaster. It'll handle 50mm holes. But as Greggers suggest, 3:1 water pva first into the gap, and then plaster after it dries.

 

[limakilo]

Gyproc One coat plaster would be a better option than finishing plaster. It'll handle 50mm holes. But as Greggers suggest, 3:1 water pva first into the gap, and then plaster after it dries.

Happy days, got half a bag of that in the shed. On a side note, would anyone use this to skim some a drywall stud wall? (I made a wall and skimmed it with this).

 

[Gazman16]

I would silicone in there first (then maybe blow some sharp sand/grit on it for a plaster key).
You can see the DPC and the external brickwork there. If you just fill it you will bridge the inner and outer skins allowing moisture to soak through to the inside and also cause a cold bridge.

Trims would be the easy recommend method

 

[Doggit]

Come to think of it, Maybe Gazman has the bet idea.