Tips for a Net Zero House

The house we built with Forge Craft Architecture is stunningly handsome, but also VERY high performance. I’m proud of this #BUILD.

This Forge Craft Architecture house is well designed with rich spaces, yet it’s only 2,000 square feet. Note the built-in dining nook off the kitchen.

Owens Corning’s Energy Complete system includes a pink goo that’s a cross between spray foam and latex caulk. It is a good way to get a lower blower-door score.

We used Tremco Dymonic caulk at the slab-to-bottom-plate connections, for additional air-sealing.

Open-cell foam was used at the roof deck, and blown fiberglass at the exterior walls. Batts were used on interior walls for sound control.

California (3-stud) corners are a great advanced framing method to ensure corners are insulated all the way back.

Look for my advanced framing video for more on making these insulated headers.

24-inch-o.c. 2×6 studs lined up nicely with the load path of the trusses above.

We used Tyvek DrainWrap on the walls, then covered them with 3/4-inch R-mate foam that has a silver facing for additional radiant barrier. Notice the horizontal rainscreen for the vertical wood siding on the front of the house.

We glued it to the slab, then later shot Hilti cap nails through it. Eventually it got a Sto synthetic-stucco finish in grey to look like a standard slab.

We wrapped the slab foundation with Bora-Foam, which is EPS impregnated with borate to resist termites.

The guys from Termi-Mesh did a great job installing our foam.

It took a few steps to ensure termites would be stopped if they tunneled behind the foam.

I like how this AirTap-brand water heater can be ducted in and out so it can be located in a small closet, if needed.

Panasonic’s fantastic ERV lives in the mech close, too, in the ceiling above the HP water heater.

The 7.2 Kw array was kickin’ when we filmed this video.

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