Thank you for your reply. Yes the substrate here is a sort of chalky, muddy, ballast. So I guess quite well drained.
I will tank on board your comments.
Thank you again for taking the time to reply to me.
Hello all I’m hoping to get some advice from some of you on how to insulate and reduce moisture levels in my cellar. Hopefully making the room more usable as a universal space for living/office/guest room type area. The gist: Our house is 260 years old and has a cellar approx 6.5 meters x 7 meters...