This home features 2 stories, with 2×6 above-grade walls, clad with 1-inch Halo Exterra continuous insulation, and a Logix ICF basement.
With this simple design, the project team managed to achieve a stellar airtightness rating of 1.36 Air Changes per Hour at 50 Pascals (1.36 ACH50). The rating is high enough to hit the “Step 4” level of the rigorous British Columbia Energy Step Code.
Very impressed by the accomplishment, we asked the instructor, Mr. Bryce Coombs, how his students were able to build such a high-performance home.
Here’s what he told us: