I'm decorating a room. After stripping the wallpaper from the walls and ceiling, on one of the walls there was a long crack in the joint between the ceiling and the wall. I've attached a photo.
I filled the cracks with pollyfilla. However, there is lumpy plaster at the top of the wall. I don't know what caused it. Maybe it was subsidence which caused movement between the wall and the ceiling.
The problem is, if I leave it as it is then there won't be a good finish for the wallpaper because it will be lumpy underneath. I haven't tried to remove the lumpy plaster because I thought it might weaken the ceiling plaster as the lumpy plaster seems attached to the ceiling plaster.
What would be the best way to remove the lumpy plaster to get the wall flat without weakening or removing parts of the ceiling plaster?
Could using a drill be a good option? Would that be better than using a hammer and chisel?
Thanks for any advice.
I filled the cracks with pollyfilla. However, there is lumpy plaster at the top of the wall. I don't know what caused it. Maybe it was subsidence which caused movement between the wall and the ceiling.
The problem is, if I leave it as it is then there won't be a good finish for the wallpaper because it will be lumpy underneath. I haven't tried to remove the lumpy plaster because I thought it might weaken the ceiling plaster as the lumpy plaster seems attached to the ceiling plaster.
What would be the best way to remove the lumpy plaster to get the wall flat without weakening or removing parts of the ceiling plaster?
Could using a drill be a good option? Would that be better than using a hammer and chisel?
Thanks for any advice.