Better Wall Design?
I have a question about a wall design I haven't seen before.
What if we took 2x6 top and bottom plates with 2 - 2x4 studs 24" on center turned 90 degrees and nailed to the top edge and bottom edge. One on the outside and one on the inside with a small brace in between to stiffen the 2x4's for nailing. Kind of like a staggered stud wall, but the studs are directly opposite each other. This should provide strength and stop thermal bridging if we flash and fill the outer wall with 2 pd closed foam and fill the inner wall with R-15 fiberglass.
Then, could we put 2" of rigid foam on the outside? This would stop thermal bridging and give us a Great Wall that is good enough to reduce heating bills? A wall like this may not reach R40, but may not need to because of the closed cell foam. I'm also thinking of setting back the sill plate 2" and adding another 2" layer of ridge foam to push the R value over 40.
Framing should be fast because studs are aligned 24 " on center and two studs at 24" OC should give the strength need for the wall and increased nailing surface on both sides of the wall.
Thanks for looking at this wall design. I've never seen this design before and think it would work. Let me know what you think of this design.
Thanks for your help.
Posted Sat, 01/04/2014 - 12:19
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