To assemble a house in a day is a feat in itself. Constructing a near net-zero energy house in a day is a major design/build achievement. The prefab firm Greenfab rose to the challenge with a variation of their 1700 Series model—packed with energy-efficient features—that came together in just one day (though required a few more weeks to finish minor details).
Photo by Tucker English.Our readers were astounded by this miraculously efficient modular home in Seattle. Only 29 hours were required to install Greenfab's “off-the-shelf” model, which packs a plethora of eco-friendly features.
