Walls made with John's inside-out ceiling layout?

Hi to all :D . Do you think there could be any cons in applying John's inside-out ceiling layout to the stud walls? That is with the studs passing trough the whole insulation-drywall-insulation system just like the joists do on the inside-out ceiling. Since space is an issue for me this could save me a little space while still keeping the stud size big enough to be load bearing... This is a top view of the outer existing (concrete) wall and of the inner stud wall: Of course this would mean (especially if studs are placed 16 O.C.) a lot of drywall and rockwool cutting and resizing but if it's ok I guess it could be worth the extra work :mrgreen: ... Do you think the efficiency of the system would suffer any major loss in this layout :? ? Thanks for your help Pat

Interesting idea mate but unfortunately the sound will travel straight through the studs with no drywall to stop it. :(

Thanks John! errr.. I guess it was too good to be true :oops: ... And do you think that any of these 3 alternatives could avoid sound to travel through the stud while still maintaining load bearing characteristics? (assuming 2x4 is what I need for bearing) a) with single 2x4 stud leaving the outer end covered by a thinner layer of rockwool: b) separate 50x50mm studs on each side screwed together trough the drywall in the same spot (I guess coupling will occur through the screw, but could it be considered a negligible amount of coupling?) c) separate 50x50mm studs on each side staggered 12" O.C. Thanks for your help :D ... Pat

I don't understand why it works for the ceilling : And doesn't for the walls : Can John or someone else explain it, please ?