Hi all, I am wondering if there is an easy solution to my insulation problem. We have cold spots in our spare bedroom, we have an old chimney breast stack running through the bedroom wall which when viewed from the loft is just a big cavity with no filling or insulation, we are having a case of the part of the wall where the old breast is is getting wet and almost sweating, we have used mold sealant paint and that hasn’t helped the issue, I am just wondering if I get insulation like rockwool and use that to fill the cavity if that will solve our issue or if there’s anything else to suggest.
Thanks in advance
