thanks all. 22mm chip is what i'm putting down, and could get 200mm insulation under that... but maybe just gonna have to do as reqd. just v. expensive...
hi all. converting my loft, house was built in 2000 with attic trusses already in. building control want 10mm ply, then pre-bonded chipboard - foam floating on top of this. i've read the regs, and i interpret them as not being required for a private dwelling? thanks for any help. robby