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Title: Retrofitting a 1960s Split-Level, Cold-Climate Home

National programs such as Home Performance with ENERGY STAR® and numerous other utility air sealing programs have brought awareness to homeowners of the benefits of energy efficiency retrofits. Yet, these programs tend to focus on the low-hanging fruit: air-sealing the thermal envelope and ductwork where accessible, switch to efficient lighting, and low-flow fixtures. At the other end of the spectrum, deep-energy retrofit programs are also being encouraged by various utilities across the country. While deep energy retrofits typically seek 50% energy savings, they are often quite costly and most applicable to gut-rehab projects. A significant potential for lowering energy usage in existing homes lies between the low hanging fruit and deep energy retrofit approaches - retrofits that save approximately 30% in energy over the existing conditions. A key is to be non-intrusive with the efficiency measures so the retrofit projects can be accomplished in occupied homes. This cold climate retrofit project involved the design and optimization of a home in Connecticut that sought to improve energy savings by at least 30% (excluding solar PV) over the existing home's performance. This report documents the successful implementation of a cost-effective solution package that achieved performance greater than 30% over the pre-retrofit -more » what worked, what did not, and what improvements could be made.« less
  1. Consortium for Advanced Residential Buildings, Norwalk, CT (United States)
Publication Date:
OSTI Identifier:
Report Number(s):
DOE Contract Number:
Resource Type:
Technical Report
Research Org:
Consortium for Advanced Residential Buildings, Norwalk, CT (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Building Technologies Office (EE-5B)
Country of Publication:
United States
CARB; Consortium for Advanced Residential Buildings; SWA; Steven Winter Associates; residential; Residential Buildings; Building America; retrofit; 1960 split level; cold climate; non-intrusive; 30% energy savings; utility bill validation; dense-packed cellulose; closed-cell spray polyurethane foam; insulating from exterior; air barrier; moisture control layers; thermal barrier; improved comfort