ᐅ Joint between masonry and drywall panels

Hello everyone,

We bought a house from a developer, and now the drywall work is finished.
I noticed that the gap between the masonry and the gypsum board ceiling (on the upper floor) varies significantly.
I hope the photos clearly show this.

The construction description states, among other things: All interior wall and ceiling surfaces will be prepared for wallpapering. The joint between masonry and gypsum boards is to be sealed with acrylic as a DIY task during the painting work.

Now my question is whether the drywall work has been done correctly and if it is okay to simply fill the wider gaps (up to 1 cm (0.4 inches)) with acrylic.
Or does it need to be filled first? Because how is the acrylic supposed to hold like that? In my opinion, there should be no gap between masonry and gypsum board, or am I completely mistaken?

Thanks in advance!

That is something I’m interested in for the near future as well.

Jonas90 schrieb:

In my opinion, there shouldn’t be a gap between the masonry and the drywall panel, or am I completely wrong?

I think that’s an expansion joint, which would be necessary due to the different settling of the materials, or am I mistaken?

I recently read that acrylic has very little elasticity and tends to crack easily. Would silicone be more suitable then?

Sorry for more beginner questions instead of answers.

Actually, the drywall should not touch the wall; when there is movement, it compresses and takes up space.

Typo: "das" = should be "darf".

So is it okay/correct to have the gap like that and just cover it with acrylic?
No further filling or plastering is needed?

Acrylic will definitely crack, and silicone cannot be painted. Therefore, neither is suitable nor will they look good. The gaps are also quite large and uneven.