Tearing down wallpaper and wall panels in full.
Something that is very common is that the wall panels don't go all the way up, or all the way down, leaving a 2cm gap before they have attached a strip at the end...
panel, gap, strip... so they could glue the wallpaper on without it being noticeable...
I'm quite pleased to see this because then my soundproofing work isn't completely in vain, large openings everywhere shouldn't be advantageous, I mean...
But why did they do it this way...
* Incorrect order?
* Or was there a serious thought, like walls should breathe or something,
* Or was it, as I recently discovered - that 250cm panels were much more expensive than 240cm panels, so they compromised to save some money? (building board 9.2mm like masonite)