Remove "vassgips" and install new drywall or patch and repair existing?

[Klockanpå]

Have torn down a lot of stuff in a turn-of-the-century building and caused quite a bit of damage to the existing vassgips.

Do you repair and patch it with filler or do you remove all the vass and install new drywall?

 

[jonaserik]

There are probably a lot of small nails to keep the reeds in place. Then it becomes difficult if not impossible to plaster. Placing drywall on these nails is not good either, it will likely be quite bumpy. You'll probably need to tear down the reeds and pull out the nails first, or notch the reeds and set spacing to lift a base to attach the 13mm drywall to.

 

[BirgitS]

There is usually lime on the reeds in a kloasongvägg: https://sv.wikipedia.org/wiki/Kloasongvägg

 

[Klockanpå]

It's probably a lot of small nails to keep the reed in place. That makes it difficult if not impossible to plaster. Putting gypsum on these nails is not good either, it will probably become quite bumpy then. You might have to tear out the reed and remove the nails first, or notch the reed and set spacers to lift a base to attach 13mm gypsum on.

So what do we do with the ceiling? Tear everything out to patch 1 sqm of ceiling? What do you do with plaster?

 

[jawen]

So how do we do it in the ceiling? Tear everything down to patch 1sqm of ceiling? How do you deal with plaster?

Repair everything with thin plaster KC mortar class C or weaker. (or add more slaked lime when you mix C-mortar)

 

[jonaserik]

So how do we handle the ceiling? Tear everything down to patch 1 square meter of ceiling? How do you deal with plaster?

As mentioned, patch with new mortar. But there will be a difference in shade between the old and new patch, and it can be hard to get right; the seam will always be visible unless you perhaps fully plaster the ceiling. So, you'll need to decide what might be best, patch or new plasterboard ceiling. The simplest might be to leave the reeds in place and remove enough for a sparse panel and plasterboard.