©2015 Green Building Advisor. From The Taunton Press, Inc., publisher of Fine Homebuilding Magazine.
I am in discussions with a contractor on how to insulate a staggered double-stud wall, 2x6 on the outside and 2x4 on the inside.
We can save a fair amount of money by filling each stud bay with Roxul and a layer of poly between the studs. I see this detail all the time with blown-in cellulose. What is the downside to 2 layers of Roxul in a staggered stud wall assembly?
Links:
[1] http://pubads.g.doubleclick.net/gampad/jump?iu=/6134/ttn.gba//print&t=window&sz=275x60;&c=626917625
[2] http://www.greenbuildingadvisor.com/qa-category/green-building-techniques