Passive House

PHIUS certification sets the highest airtightness standard in North American residential construction. A SIP envelope reaches it as a matter of course, because the panel face is continuous and the only air paths are the joints — which are sealed as part of erection, not as a separate trade afterwards.

Walls and roof were panelized and erected through the winter, each panel cut to the drawing and marked for its position before it left the shop.

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