I'm starting a complete overhaul of my 1930s living room (no structural work, but all decoration changing, including windows, radiators, lighting etc.), and was itching to DO something, while I'm still sorting out the right tradespeople. So I started, perhaps ill-advisedly, steaming off the wallpaper.
It comes off super easily, but in a few places some of the thin "board" underneath has come off. What is that? I'm told plasterboard would be thicker, but what other board-like thing could it be? And underneath that, there is this bright salmon colour. What is that? As far as I'm aware, dry plaster isn't that colour (or am I wrong about that?). Is it a previous colour of the room? I'm wondering how many layers of "stuff" there are on this wall. But I'm also nervous about picking at things and causing damage that can't be fixed.
FWIW, I'm fully prepared to pay for professionals to do whatever is needed to make the walls in this room perfect, so I'm not worried about pulling off bits that should probably come off anyway in order to start with a "clean slate". But I am a bit worried in case I've pulled off something that I should have left alone.