What’s in your wall ?
Most of us don’t have high performance walls, actually most of us in Seattle don’t have any insulation whatsoever. Our mild climate allows homes to be minimally insulated. However the opposite can be said as well. A highly insulated home can potentially be the most effective in a mild climate, with the potential of giving back not only financially but also in regards to energy, or electricity. Below are a few examples of walls that we have built, all of which are tending towards, or are, passive ( See “what is a passive house”)
This wall is from the Haller Lake House, it features build smart panels comprised of 6” of EPS foam over 2by6 framing with insulation. Achieving insulation value of R40.
EXTERIOR
Cedar Siding
7/16” Zip Sheathing
6” EPS Foam
1/2” Oriented Strand Board
2by6 Framing w/ Batt insulation
1/2” Oriented Strand Board
Interior finish per location
INTERIOR
This is a wall being developed for a passive backyard cottage. It is within an existing garage structure. We have added an additional 2by4 wall to the interior, sitting on a new structural curb and slab, with 12inches of EPS foam below. 12inches of blown in insulation between the old wall and the new wall. Achieving an insulation value of R54.
EXTERIOR
Cedar Siding
3/4” plywood
2by4 Framing w/ blown in cellulose insulation
5.5” gap with blown in cellulose insulation
2by4 Framing w/ blown in cellulose insulation
1/2” Oriented Strand Board
5/8” gypsum board
INTERIOR
