Building America Case Study: Columbia County Habitat for Humanity Passive Townhomes, Hudson, New York
Columbia County (New York) Habitat for Humanity built a pair of townhomes to Passive House criteria with the purpose of exploring approaches for achieving Passive House performance and to eventually develop a prototype design for future projects. The project utilized a 2x6 frame wall with a structural insulated panel curtain wall and a ventilated attic over a sealed OSB ceiling air barrier. Mechanical systems include a single head, wall mounted ductless mini-split heat pump in each unit and a heat recovery ventilator. Costs were $26,000 per unit higher for Passive House construction compared with the same home built to ENERGY STAR version 3 specifications, representing about 18 percent of total construction cost. This report discusses the cost components, energy modeling results and lessons from construction. Two alternative ventilation systems are analyzed: a central system; and, a point-source system with small through-wall units distributed throughout the house. The report includes a design and cost analysis of these two approaches.
- Publication Date:
- OSTI Identifier:
- Report Number(s):
- NREL/FS-5500-65226; DOE/GO-102016-4793
- DOE Contract Number:
- Research Org:
- NREL (National Renewable Energy Laboratory (NREL), Golden, CO (United States))
- Sponsoring Org:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Building Technologies Office (EE-5B)
- Country of Publication:
- United States
- 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION Habitat for Humanity; Passive House; ventilation systems; costs; energy modeling; residential; residential buildings; ARIES; Building America
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