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S-F · 04-19-11, 06:16 AM

I don't really get the Mooney wall. I guess you can reduce the bridging a pretty good amount, but that's about it. At the most you get an inch or two more wall. Just spending the time air sealing properly will do a lot more for you than 1" of cellulose or blown glass. If I'm going to be tearing my interior walls down I'll be making a proper double stud wall for a full 12" cavity. You can reduce thermal bridging much more effectively, for a lot less money and with a lot less disturbance to the residence by installing XPS to the outside of the sheathing. There you can add 4" for an additional R20 as opposed to an additional 3.7 or maybe less.

04-19-11, 06:16 AM	#3
S-F You Ain't Me Join Date: Nov 2009 Location: Northampton MA Posts: 662 Thanks: 6 Thanked 71 Times in 58 Posts	I don't really get the Mooney wall. I guess you can reduce the bridging a pretty good amount, but that's about it. At the most you get an inch or two more wall. Just spending the time air sealing properly will do a lot more for you than 1" of cellulose or blown glass. If I'm going to be tearing my interior walls down I'll be making a proper double stud wall for a full 12" cavity. You can reduce thermal bridging much more effectively, for a lot less money and with a lot less disturbance to the residence by installing XPS to the outside of the sheathing. There you can add 4" for an additional R20 as opposed to an additional 3.7 or maybe less. Last edited by S-F; 04-19-11 at 06:18 AM..