Columbia County Habitat for Humanity Passive Townhomes

Dentz, Jordan¹  Alaigh, Kunal¹  Dadia, Devanshi¹ 

[1] The Advanced Residential Integrated Energy Solutions Collaborative, New York, NY (United States)

关键词: Habitat for Humanity;    passive house;    ventilation systems;    costs;    energy modeling;    residential;    residential buildings;    ARIES;    Building America;    Energy Star;   

DOI  :  10.2172/1243299
RP-ID  :  NREL/SR--5500-65225
RP-ID  :  DOE/GO--102016-4792
PID  :  OSTI ID: 1243299

学科分类：能源（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

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% 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.