to all. The residue has not re-appeared since it was brushed off, so I'm pretty certain it was salts. I'm letting the wall dry out and will re-paint as you've suggested. Thanks again
Thanks. In the meantime, should I just keep getting rid of the mould as it appears? Also, when will we know it's completely dry? As I say, it feels dry to the touch.
Our guttering had blocked, and was causing water to flow down an exterior wall - unnoticed by us, until we found damp patches on the interior wall. We got the blockage removed and the guttering is working normally. I stripped off the wallpaper on the interior wall to expose the plaster and try to dr...
