Hello! I'm new to the group - I have done a plastering course (more than happy to skim walls) but won't be tackling this particular job myself. I have a house here in Cornwall, with 2ft thick granite walls that have recently been lime pointed (about 3 years ago). The wallpaper in one of the bedrooms started to lift from the walls in places, and there has been some staining leeching through (attractive!). I have removed all of the wallpaper today and the old plaster is bubbling in places and is wet in others. I have checked the guttering and downpipes and there's no leaks onto the walls. I've been up into the attic and there's no loose tiles or water ingress. I also air the room regularly. What could be causing the wet walls? Would it be best to hack the old plaster off and get lime plaster on the walls? Any ideas? Thanks!