Insulating dry lining ?

[paddypower]

I'll be dry lining an old room. Plaster boards onto 2" x 1" 's. Is there an advantage to insulating the voids with polystyrene slabs or just leave as voids?

TIA

 

[noseall]

air is a good insulator, polystyrene is even better.

styrofoam better still.

 

[cookoid_0]

Celotex between the timber, then use insulated plasterboards. You'll be warm as toast. Air is a good insulator but air which moves about can conduct heat away fast.

 

[Deluks]

If any of the walls have another room on the other side you might wanna use rockwool slabs to dampen sound transmission. The problem I see is that you'll no air circulation if you insulate between the 2x1's, which could be bad.
Might be an idea to use 2x2 horizontally, insulation between, then fix the battens to that and board over.

Beware the extra cost of funky plasterboards, you can often get better performance cheaper by doubling up on the standard stuff.

Any of these walls external?

 

[paddypower]

Thanks for the replies,
Deluks, 2 internal, 2 external.
cookoid_0, never thought of insulated plasterboard, I assume I'd just screw to the battens? Will 2" x 1" still be adequate? I need to use battens to square up the walls and they are not in a sound condition to use adhesive on.

regards,

 

[Deluks]

Thanks for the replies,
Deluks, 2 internal, 2 external.
cookoid_0, never thought of insulated plasterboard, I assume I'd just screw to the battens? Will 2" x 1" still be adequate? I need to use battens to square up the walls and they are not in a sound condition to use adhesive on.

regards,

Well how about insulated on the external walls, to prevent heat loss and give you an airgap, and rockwool filled void on the internal walls for noise reduction? I would use 2x2 on all walls, but it probably won't make a lot of difference either way.

 

[markie]

2x1

 

[paddypower]

Thanks all,
I'll be going for insulated plaster board on 2 x 1 battens.