I Joists Walls Up!

These I-Joists create depth for blowing in cellulose insulation outboard of the structural 2×4 wall (that will also be dense-packed with cellulose insulation). This wall assembly mitigates thermal bridging because the middle cord of the I Joist is so thin that it doesn’t allow for thermal bridging like a 1.5″ thick stud would. This wall assembly also allows for an internal air barrier than can’t be damaged from the inside or the outside.