Take down pictures mirrors or anything that s leaning or hanging against your walls.
Hanging wallpaper on plaster walls.
Although this may sound like a measurement process it actually refers to treating plaster walls with a product that allows the paper to stick better but not so tightly that you can never remove it.
The best option mostly depends on the weight of the picture in question.
Best o luck paul.
Place these in another room.
Pull out all remaining plaster and lath and re build the walls with drywall or to be historically accurate plaster and lath.
Step 1strip off the outer face of the wallpaper leaving only the backing material and glue.
Plaster walls have a tendency to crack and crumble if you attempt to hammer a nail directly into the wall.
Firstly make sure plaster is fully dry 7 10 days depending on drying conditions.
How to wallpaper or paint directly on plaster 1.
Place any large pieces of furniture such as sofas in the center.
If you encounter wallpaper that s been painted over first try the wallpaper stripping.
Remove as much furniture as possible from the room.
For speed even application i use a roller.
Then size the walls by applying a some ready mixed paste diluted with water to stop the plaster absorbing all the moisture when you come to actually hang the paper.
If you manage to get the wallpaper off and the plaster hangs together consider yourself lucky.
Prepping plaster walls for paint wallpaper painted over wallpaper.