Framing Double 2-by-4 Walls


| 4/29/2013 2:52:00 PM


Tags: green building, net zero energy home, Dan Chiras,

Building a net zero energy home, as all my readers know, requires construction of an airtight, super insulated building envelope. Walls are, of course, a key component of the building envelope. I found that the least-expensive option for my house was a fourteen-inch thick double 2 x 4 wall insulated with spray foam and cellulose. This was far cheaper than SIPs and ICFs and resulted in almost no bridging loss.

 subflooring

Once the subflooring was laid, we began to frame the double 2 x 4 walls. The outer 2 x 4 wall was framed first, sheathed with ½-inch OSB, then tilted into place.

 studs with sheathing

Here are two sections of the outer 2 x 4 walls, braced to prevent them from collapsing.

braced stud walls 




mother earth news fair 2018 schedule

MOTHER EARTH NEWS FAIR

Next: April 28-29, 2018
Asheville, NC

Whether you want to learn how to grow and raise your own food, build your own root cellar, or create a green dream home, come out and learn everything you need to know — and then some!

LEARN MORE