Sketchup for my new control room

given that there has to be some sacrifices to make this work, do you think I should sacrifice good isolation between the rooms for the sake of being able to get better dimensions for ratios in the control room?

If we dont do the inside out walls in the control room, this will make for a wider room which seems to be what you are saying would be better.

ian.lb wrote:

Soundman2020 wrote:

Quote: I think it is sort of a 'room within a room' with all 2nd leaf walls attached to each other and to the floor but not attached to the existing walls. Exactly! That is EXACTLY what we are talking about! You got it! :)

I cant tell you how happy I was when I read that!!! So, the timbers will take up 2" with a 2" airgap plus 5/8 board then whatever covers the front so approx 5" lost space on each of the sidewalls and across the window....Hmm I'm sold on the idea. For the live room as well. You should have been a salesman ;-)........ Gonna cost a lot more than I thought. I'll price up timber today. A few concerns. 1, Heating. I've got a radiator under the CR window and one in the LR on the right hand side. How the heck would I get these in to the inner structure? 2, Damp/lack of airflow in the outer structure. I have had a bit of an issue with too much condensation in these rooms, especially in the winter. This has lead to a few mould problems. If the airflow is lacking in the outer structure (behind the new leaves) I may suffer with damp problems. Damp / mould can be a nightmare. Is it recommended to heat the outer structure as well as the inner to combat this? I'm sure there are tried and tested methods you are aware of..... 3, The ceiling/roof. I've posted pics to show the current construction. It is already one leaf which is the outer construction of the flat roof mounted on joists. There is currently no insulation between the rooms and the outside world. I took the old plasterboard ceilings down with the aim of insulating this space for both heat retention (England gets very cold in the winter :cry: ), and room treatment. I was planning on using rockwool batts and plasterboarding with soundbloc, using the 10mm neoprene I mentioned earlier to lay along the joists to decouple as much as possible the new plasterboard from the existing structure. I was then gonna leave a 5mm gap around the edge and fill with acoustic caulk. I know this is not a true 2 leaf ceiling structure. Problem is, if I then create a new ceiling below that, it becomes 3 leaf. The wife has been reading the post and is chilled enough to say yeah lets go with the 2 leaf walls but if I try to tell her I aint plasterboarding over those existing joists.....even if I say I'll still pack em with rockwool for insulation.......We may fight!!! :twisted: (The whole 'what will it look like when we move out' arguement will come up again as described earlier :oops: ). The problem is with doing it this way is that the new inner leaf walls will have to attach to the existing joists thru the new plasterboard anyway which I know aint good.....but there are gonna be compromises.....What do you think?