studio in a shed

[samthebeat]

hey all,

my brain is spinning after finding this forum, I thought I had it all worked out and now it seems.......well I just dont know anymore

I have already started building my outer shell which is a shed.. these walls will sit on a ring of concrete blocks (standard stud type construction plasterboard rockwool all sealed up niceley with caulk etc), and will not be at all conected the inner shell.

Innner shell will sit on cast concrete slab, the slab with have about 30cm gap from the shed walls. On the shell I will build a concrete blocked wall 30cm away from shed walls (30cm air gap), then another concrete wall 10cm from the first, the gap bettween the two concrete walls will be filled with rockwool. Both walls will be rededred or plastered or both, built from 10cm deep blocks.

Then I intened to build a stud wall 5cm from the inner conctete wall consisting of 4inc studs, 2 layers of plasterbord on the inside none on the other, resilient bars, rockwool filled cavity all sealed.

Will this work, providing I get the ceiling right. For which I dont really know yet.

What you all reckon??
thanks for reading.

Sam

[the dreamer]

Hi, you really need to read all the stickys in the reference area.

If I got it right you're gone build a "MULTI_LEAF_SYSTEM" which is bad.
Well, in your case with 2 concretewalls and 2 studwalls maybe it is good, but I suppose that if you build a really heavy outer shell and a really good decoupled room-in-room you will get all TL you need.

Florian

[knightfly]

Florian's exactly right; you need to put ALL your mass in only TWO places; the OUTER wall and the INNER wall. With a 300mm air gap (insulated) and concrete, you should get really good isolation with a lot less cost.

What you're proposing will actually cost you MORE and give you LESS isolation.

Check out the REFERENCE section near the top of this forum for more explanation... STeve