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Utilization of Existing Infrastructure
This home is located on Madison's northside, blocks from Warner Park, Troy Gardens and Lake Mendota. Woods are just out the back door for relaxation and recreation, while the home is served by a busline out the front door.
Preservation of Trees and Existing Vegetation
Trees and natural features were protected during the construction of this home.
Orientation for Use of Renewable Energy
The home is oriented with the long dimension facing within 15 degree of south to optimize solar intake during the winter. A patio is on the south side of the house providing a sunny, wind sheltered outdoor space.
Subcontractor Involvement in Resource Efficiency Plan
Language included in the contract required subcontractors to participate in waste reduction and recycling efforts.
Structural Framing
Waste was reduced on the job-site by using prefabricated insulated headers. Pre-fabricated materials allow for more efficient recovery of scraps at the factory. Finger-jointed studs, engineered stud material, and recycled content sheathing were used on the job-site.
Sub-Floor
The sub-floor was constructed of oriented strand board (OSB).
Windows
Energy Star rated windows were used throughout the home with an air leakage rating <0.06 cfm/ft. A guide on Energy Efficient windows, and other residential energy saving techniques, is located at http://www.focusonenergy.com/Information-Center/Residential/Fact-Sheets/Energy-Savings-Checklist.aspx.
Roof
Minimum 30 year asphalt composition roofing.
Cabinetry and Trim
Hardwood cabinets and domestic hardwood trim reduce concerns from potential impacts to indoor air quality from toxic off gassing.
Efficient Use of Materials
Reusable foundation forms were used on this construction site to reduce waste. Optimum Value Engineering (OVE) was used to reduce materials usage during framing. The walls are 2x6, pre-framed in panelized sections under controlled factory conditions. Under these conditions the use of materials can be optimized and scrap can more readily be reused and recycled.
Alternatives to Burying or Burning Construction Waste
Job site waste was collected for recycling including glass, aluminum cans, plastic bottles, non-treated wood scraps, and palettes, gypsum wall board, and cardboard.
Other
A Green Built Homeowner Handbook, prepared by Green Built Home, was provided to the homeowners. The handbook addresses lawn care, appliance selection, energy and water conservation and hazardous materials and waste disposal. In general it provides information and tips on how to lower operating expenses, reduce maintenance requirements, maintain good indoor air quality, protect the environment around the home, and conserve energy and other natural resources.
Recycling bins were installed in the garage for homeowner convenience.
Products with Minimal Off-Gas
Low Volatile Organic Compound (VOC) paints were used throughout the home. All ductwork was sealed with Low VOC mastic.
Water-Based Finishes
Water-based, low VOC adhesives were used throughout the home.
Ventilation Design (related to climate conditions)
The furnace filter is made of pleated paper and a HEPA filter was provided.
Building Envelope
The walls of this home were prefabricated using 2x6 24' on center construction. Insulation consisted of fiberglass (R-21) and 1' of rigid foam applied on the exterior. The roof is a manufactured wood truss system, 24' on center with R-50 blown in insulation.
Energy heels of 7" or more were used on trusses. All ductwork is located within a conditioned space or insulated. All of the ductwork joints were sealed with a water-based, low VOC mastic. Tyvek house wrap was put over the exterior sheathing.
Mechanical Systems
A high-efficiency furnace and air conditioner were installed. The mechanical systems are managed with a programmable set-back thermostat to optimize comfort and efficiency. The furnace is centrally located to minimize the length of duct runs, and potential for energy loss.
Water Heating
The water heater is located within 20 feet of the dishwasher and clothes washer, reducing the potential for lost energy.
Appliances
The dishwasher and refrigerator are Energy Star rated appliances. To receive the Energy Star, a product has to exceed the federal government's minimum standards for energy consumption and efficiency standards by considerable amounts, reducing the energy bill and pollution. Learn more about Energy Star appliances.
Lighting
Energy Star light fixtures are enhanced by light-colored interior walls, ceiling and soffit.
Best Management Practices (BMPs) for Stormwater
Straw bales and silt fencing were used in areas of concentrated runoff flow to reduce erosion during construction. Site disturbance was limited to within 20 feet of structures and paved areas.
Water Efficient Appliances, Equipment and Fixtures
Low-flow faucets and showerheads were installed in the duplex.
Other
Cut and fill requirements for the site were balanced to eliminate the need to remove earth material from the site.
General living space
This home is billed as a "barrier-free" duplex. Unit 1 is a two bedroom home that is fully compliant with the Uniform Federal Accessibility Standards (UFAS). Unit two has a fully barrier-free first floor with 1 bedroom and an accessible full-bath. The second floor will be occupied by a roommate and live-in attendant.
More detail on this system is available here. 
Bathroom
Accessible bathrooms were constructed in both units of this duplex.
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