The exterior features cedar tongue and groove siding and James Hardie panels. Due in part to smart material choices, the house is 51% more efficient than the standard newly constructed home and 61% more efficient than a typical existing home. Photo 1 of 4 in House of the Week: Nearly Net-Zero Prefab Installed in 29 Hours by Luke Hopping from An Eco-Friendly Prefab Assembled In One Day

House of the Week: Nearly Net-Zero Prefab Installed in 29 Hours

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The exterior features cedar tongue and groove siding and James Hardie panels. Due in part to smart material choices, the house is 51% more efficient than the standard newly constructed home and 61% more efficient than a typical existing home.