Launch Slideshow

With its simple forms, strategic window placement, and super-efficient building shell, G¢OLogics prototype house minimizes both up-front cost and operating expenses. Shown: Prototype A.

savings plan

Using innovative design and construction methods, Maine design/build firm G?OLogic produces a zero-energy single-family home for $150 per square foot.

savings plan

Using innovative design and construction methods, Maine design/build firm G?OLogic produces a zero-energy single-family home for $150 per square foot.

  • With its simple forms, strategic window placement, and super-efficient building shell, G¢OLogics prototype house minimizes both up-front cost and operating expenses. Shown: Prototype A.

    http://www.residentialarchitect.com/Images/tmp1CE5%2Etmp_tcm48-313209.jpg

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    With its simple forms, strategic window placement, and super-efficient building shell, G¢OLogics prototype house minimizes both up-front cost and operating expenses. Shown: Prototype A.

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    Matthew O'Malia

    With its simple forms, strategic window placement, and super-efficient building shell, G•OLogic’s prototype house minimizes both up-front cost and operating expenses. Shown: Prototype A.

  • A small photovoltaic array will completely offset the prototype's minimal energy use. Shown: Prototype C.

    http://www.residentialarchitect.com/Images/tmp1DAB%2Etmp_tcm48-313223.jpg

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    A small photovoltaic array will completely offset the prototype's minimal energy use. Shown: Prototype C.

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    Matthew O'Malia

    A small photovoltaic array will completely offset the prototype's minimal energy use. Shown: Prototype C.

  • Shown: Prototype E.

    http://www.residentialarchitect.com/Images/tmp1C4E%2Etmp_tcm48-313202.jpg

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    Shown: Prototype E.

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    Matthew O'Malia

    Shown: Prototype E.

  • Shown: Prototype B.

    http://www.residentialarchitect.com/Images/tmp1B3C%2Etmp_tcm48-313188.jpg

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    Shown: Prototype B.

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    Matthew O'Malia

    Shown: Prototype B.

  •  G¢OLogics prototype house, in section.

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    G¢OLogics prototype house, in section.

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    Matthew O'Malia

    G•OLogic’s prototype house, in section.

Building a super-energy-efficient single-family house at an affordable cost is no easy task. In Maine, with its frigid winters, the challenge is especially stiff. But G•O Logic, a design/build collabo­ration of architect Matthew O’Malia and builder Alan Gibson, has produced a stylish and practical prototype house that will meet both Passivhaus and LEED Platinum standardsat a construction cost of only $150 per square foot. “Instead of just building a slightly better shell,” O’Malia says, “we’re building a home that uses 90 percent less energy for space heating.”

Design innovations begin with a shallow foundation completely isolated from the earth by rigid insulation (including the footings that support the hybrid timber-frame structural system). Using the Passivhaus Planning Package software to model various building shell configurations and mechanical systems eliminated the need for a mechanical engineer. Production efficiencies center on a computer model that guides fabri­cation of all major structural components. The 6½-inch-thick SIPs arrive at the site pre-cut and ready to lift into place. Proper solar orientation, fanatical air sealing, reduced thermal bridging, and ultra-high-performance German windows help the building meet an annual energy consumption target of 120 kilowatts per square meter.

G•O Logic offers the house in 1,200-square-foot, 1,500-square-foot, and 1,700-square-foot versions and will rent out the prototype for two years to monitor its long-term energy performance.

Our sister publication, ecohome, recently wrote about the completed project, which won a leed for homes project of the year award.