Gearslutz.com - View Single Post - Building room in a room / isolation wall construction

pankers · 28th November 2009

Hello guys,

I hope someone can help me with this...

I am planning to build a room in a room for a simple home studio purposes (mixing, recording,...). Existing walls are made from 0.3m thick brick.
I know the best - most economical

- way to achieve isolation is to build an inner wall with plasterboard to create a MASS - AIR - MASS system.

I have already obtained low density mineral wool 30kg/m3 (2lb/ft3).

My question is: is it better to use this wool to fill the air gap between new plastered wall and existing brick wall for isolation or is it better to use it for absorption inside the room?

2.) Would there be any benefits for isolation if I would leave addional 2" of air space between new wall construction (i was thinking of 2") and existing brick wall? I know for absorption it is better to have air space behind insulation: whats the relationship between air and absorbtion

Hope somone can help me in a short time

Thanks!

28th November 2009	#1
pankers Gear interested Join Date: Nov 2009 Posts: 9 Thread Starter	Building room in a room / isolation wall construction Hello guys, I hope someone can help me with this... I am planning to build a room in a room for a simple home studio purposes (mixing, recording,...). Existing walls are made from 0.3m thick brick. I know the best - most economical - way to achieve isolation is to build an inner wall with plasterboard to create a MASS - AIR - MASS system. I have already obtained low density mineral wool 30kg/m3 (2lb/ft3). My question is: is it better to use this wool to fill the air gap between new plastered wall and existing brick wall for isolation or is it better to use it for absorption inside the room? 2.) Would there be any benefits for isolation if I would leave addional 2" of air space between new wall construction (i was thinking of 2") and existing brick wall? I know for absorption it is better to have air space behind insulation: whats the relationship between air and absorbtion Hope somone can help me in a short time Thanks!