Hi guys, hoping someone can help.
I`m about to install a loft room, which is made up of partition walls (i.e. all 4 walls will be away from external walls). I`m not sure how best to do this, the timber frame is 72mm deep and the Celotex is 100mm thick.
I`ve attached a pic of how I intend to do this. Any comments/tips welcome!
Cheers