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  Nutter Green Home

Nutter Green HomeArchitect/Designer

Krista Atkins Nutter, ASID, LLC
1288 Baldwin Road, Milford, OH 45150

General Description

Energy Star 5+Stars
Milford, Ohio
Date Bid: Mar 2006 Construction Period: Apr 2006 to June 2007
Total Square Feet: 2,289 finished. Site: 1.75 acres.
Number of Buildings: One.
Building Size: Garage (unfinished), 728; basement (unfinished), 1,295; first floor, 1,323; second floor, 966; total, 2,289 (finished).
Building Height: Basement, 8’5”; first floor, 8’; second floor, 8’; floor to floor, 9’4”; total, 19’ (total height is 19’ above grade on south side and 27’ above grade on north side).
Basic Construction Type: New/ICF/Stick Frame.
Foundation: Insulated Concrete Form (ICF).
Exterior Walls: Stick frame, metal & composite siding. Roof: Metal. Floors: Concrete, wood. Interior Walls: Wood stud drywall.

Construction Team

Structural Engineer: Advantage Group Engineers - 660 Lincoln Avenue #305, Cincinnati, OH 45206

Krista Atkins Nutter, designer and owner of the Nutter Green Home, is a certified interior designer with an MS Architecture degree and is a Professor of Design. She and her husband, Kenneth have built a super-insulated, energy-efficient, passive-solar, solar-electric home with solar hot water heating and a rainwater catchment system to provide water for toilet-flushing, clothes-washing, and outdoor uses. The home is designed for the local climate, and has achieved an Energy Star Rating of 5+ Stars, a 2007 Cincinnati Sustainability Award and a 2008 Excellence in Design Award Runner-Up selection in Environmental Design + Construction Magazine. One of the main goals of the home is to serve as an educational model for the community. The Nutters have given seminars on the Nutter Green Home to various groups, including students of all ages, the US EPA, the NeoCon World's Trade Fair in Chicago, and Green Energy Ohio.

The site for the project is a sub-urban infill lot with surrounding homes 25 years of age. The site was selected for its unobstructed southern exposure and close proximity to services such as retail, churches, healthcare, schools, ect. The home is a 2,300-square-foot modern-industrial, environmentally-sensitive dwelling utilizing strategies such as an insulated concrete form foundation, spray foam insulation, value engineered framing, suspended concrete floors, environmentally-sensitive materials such as recycled glass counter tops and bamboo stair treads, water-conserving low flow faucets and dual flush toilets, two high-efficiency heat pumps for back up heating and cooling, a heat recovery ventilator to supply the home with fresh air, and a 4.4 kW photovoltaic roof-mounted array. The exterior of the home features recycleable Galvalume and fiber composite siding. All concrete used in the project utilized 20% fly-ash.

The home with its grid-tied solar PV system, installed in March 2007, recorded its first positive electric bill in Aug./Sept. 2007 (which was quite a hot month in Cincinnati where temperatures consistently reached the 90s Fahrenheit). With both heat pump condensing units running and the thermostats set to 74-degrees, the electric bill from mid-August to mid-September was $8. All bills prior to that were credits ranging from $40 to $60.

Superior indoor air quality is achieved through zero-voc finishes, low or no-formaldehyde construction products, a high-efficiency electronic air filtration system, a heat recovery ventilation system, and by sealing all metal ductwork with mastic.

The home was built for $100 a square foot, excluding the cost of the solar PV system. A grant from the Ohio Department of Development was awarded to the owners to help offset the cost of the PV and solar hot water heating systems.

The home also features native landscaping including a rain garden, a constructed wetland, a native prairie, a vegetable garden, and other plants native to southwestern Ohio. Like the home, the gardens will be open to the public for tours and seminars which discuss the importance of native landscapes, habitat preservation, and stormwater runoff retention. The National Wildlife Federation has designated the property as a "Certified Backyard Wildlife Habitat."


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