Hello, I'm going to replace windows. Now I discover that my walls are plank walls with plaster and reed on the inside. The plaster is very sensitive and gets damaged when you open around the window frame.
1. Does anyone have experience with this? Is it possible to repair the plaster after the window is replaced?
2. There is wallpaper on the plaster, which has poor adhesion. What is the best way to wallpaper such plaster walls?
Thanks for all help
Olivier
1. Does anyone have experience with this? Is it possible to repair the plaster after the window is replaced?
2. There is wallpaper on the plaster, which has poor adhesion. What is the best way to wallpaper such plaster walls?
Thanks for all help
Olivier
Start by cutting with a small circular saw in the plaster to avoid damaging it. It can be repaired afterward if an accident occurs, use a kc bruk to patch it up. Regarding the wallpaper, there is special patination paint available for purchase, which you roll on and it absorbs into the lower wallpaper layers, "reinforcing" them. Of course, you should remove all loose wallpaper before painting the wall.
Find out what type of mortar you have before deciding what to use for repairs. If you have lime mortar and repair with KC, it is a bad move.
Diversearbetare
· Göteborg
· 11 228 posts
...and above all; save the plaster you tear down and use it as filler in the new mortar. I got that tip from an old painter when we renovated my old housing cooperative with rendered walls from hell. 
Take a piece of old plaster to the store and hope you get good help to choose the right plaster for repairs. If the old one is pure kalkputs, you might get cracks between the old and new if you repair the old with a stronger and stiffer = cement-based plaster mix. The two types move differently. In any case, kalkputs is a safe bet for all repairs precisely because it is the most elastic and flexible and doesn't cause tensionoderooy said:
.gaia
Diversearbetare
· Göteborg
· 11 228 posts
I thought it sounded like a good idea to get the same feel in the plaster. It naturally depends on what kind of plaster you have. In my BRF it turned out great on the 2 m2 to repair. We reused about 80% of the volume and mixed this with "a type of fatty lime plaster". I have no idea what it was.jon_h said:
Yes, if you use the old plaster as ballast in the new one, instead of mortar sand and similar, then it works. But not if you have already acquired a plaster mortar of the right strength, then you weaken it in the same way as if you were to mix in a lot of sand.
But that was surely the former you meant one should do, I realize now.
But that was surely the former you meant one should do, I realize now.
Diversearbetare
· Göteborg
· 11 228 posts
Exactly. Ballast or filled.jon_h said:Yes, if you use the old plaster as ballast in the new one, instead of mortar sand and the like, it works. But not if you have already acquired a plaster mix of the right strength, as then you would weaken it in the same way as if you were to mix in a lot of sand.
But that's surely what you initially meant to do, I realize now.