I have a bedroom with 2 outside 1 walls - 1 north facing, the other east facing. Both walls, especially the east facing one are very cold. We've just put a bed in the corner of this room, and when I went to change the sheets this week I noticed that the walls were soaking wet. When I pulled the bed out there was mould in the corner. We have a new boiler, which means the house is a bit warmer than it had been and is probably exasperating the problem.
I have cleaned the mould off and pulled the bed out from the wall a little. What else can I do to prevent this from happening again? Is there anything that can be done to make the walls "warmer"?
Given the size of the room there isn't anywhere else to put the bed unfortunately.