Install drywall on an old wall to create an even surface?

Hello @Laie1981,

if I understood correctly, it is not necessarily about comparing drywall cladding versus the construction of a wallpapered or wallpaper-ready plastered solid wall, because then the disadvantages of the prefabricated wall shell (more time-, material-, and cost-intensive, additional cavity insulation recommended e.g. with mineral wool, shifting the dew point inward with the risk of mold formation on the raw wall surface, risks of detachment at the transitions to all adjacent components, three-flank adhesion problem with silicone or acrylic joints, additional effort in the area of door and window connections, possible damage in the floor and ceiling areas, reduction of usable space, additional disposal and filling effort during demolition, remaining crack formation in the interior plaster and thus damage to the airtight, heat-exchanging building envelope with risk of mold in the building's exterior construction, etc.) would only be outweighed by the advantage of eliminating wallpaper preparation on the solid wall.

If you expect your husband to handle the far more extensive and physically demanding transport and installation work, it might well be worth considering that he alternatively prepares the existing walls for wallpapering.

However, if simpler alternatives are meant under further tips, which merely concern the restoration of wallpapered or wallpaper-ready plaster wall surfaces, then split wallpaper might be a solution, consisting of (at least) 2 layers, of which the top one can be easily dry-removed.

More comprehensive expert advice in this regard can be obtained from specialist painting and varnishing companies, as already mentioned.

Best regards from the center of Germany
KPS

Sorry for the scheduling conflict!

Hello,

what I don’t quite understand: "There is moisture in the indoor air which diffuses through your drywall. The inside of the exterior wall cools down because it is protected from heat by your drywall."
You are talking about an exterior wall, I did not intend to clad a wall that faces outside, that is, towards the street. It may be that I have a misunderstanding, but how does it work then, for example, with the stuff from parador, do they also put insulation in between? If that is indeed the case, then it’s clearly ruled out and I can forget the whole idea, but that’s why a layperson signs up in a specialist forum.

So the walls to be clad are interior walls, e.g. hallway or similar, no walls that face outside and are thus naturally exposed to different temperatures. Any ideas? I need to take a closer look at the split wallpaper, are there any good links for that?

Hello,

..... I did not intend to clad a wall that faces outside, meaning towards the street.

so only expensive cladding of interior walls and wallpapering exterior walls

Read KPS's post again carefully, then you will know why you should also leave the interior walls as they are

..... demolition risks at the transitions to all adjoining components, three-sided adhesion problem with silicone or acrylic joints, additional effort in the area of door and window connections, possible damage to the floor and ceiling areas, reduction of usable space, additional disposal and filling effort during demolition......

how does it work then, for example with the stuff from parador,

sorry, I don't know it

Good morning,

what just occurred to me is, how do the tilers do it when they stick new tiles onto old tiles. The bathroom itself has even more humidity, I just remembered in our bathroom. That’s how it was done and tiled up to three-quarters high.

Because, as you wrote, the tiles are GLUED onto the other tiles and therefore there is no cavity where moisture can accumulate???