Stand-Off Furring in Deep Energy Retrofits, Syracuse, New York (Fact Sheet)
IBACOS, in collaboration with GreenHomes America, was contracted by the New York State Energy Research and Development Authority to research exterior wall insulation solutions. This research investigated cost-effective deep energy retrofit (DER) solutions for improving the building shell exterior while achieving a cost-reduction goal, including reduced labor costs to reach a 50/50 split between material and labor. The strategies included exterior wall insulation plus energy upgrades as needed in the attic, mechanical and ventilation systems, and basement band joist, walls, and floors. The work can be integrated with other home improvements such as siding or window replacement. This strategy minimizes physical connections to existing wall studs, encapsulates existing siding materials (including lead paint) with spray foam, and creates a vented rain screen assembly to promote drying. GreenHomes America applied construction details created by IBACOS to a test home. 2x4 framing members were attached to the wall at band joists and top plates using 'L' clips, with spray foam insulating the wall after framing was installed. Windows were installed simultaneously with the framing, including extension jambs. The use of clips in specific areas provided the best strength potential, and 'picture framing' the spray foam held the 2x4s in place. Short-term testing was performed at this house, with monitoring equipment installed for long-term testing. Testing measurements will be provided in a later report, as well as utility impact (before and after), costs (labor and materials), construction time, standard specifications, and analysis for the exterior wall insulation strategy.
- Research Organization:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy Building Technologies Office
- DOE Contract Number:
- AC36-08GO28308
- OSTI ID:
- 1132137
- Report Number(s):
- DOE/GO-102014-4400; KNDJ-0-40341-00
- Resource Relation:
- Related Information: Building America Case Study: Technology Solutions for New and Existing Homes, Building Technologies Office (BTO)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
RESIDENTIAL
RESIDENTIAL BUILDINGS
IBACOS
BUILDING AMERICA
SPRAY FOAM
DEEP ENERGY RETROFIT
DER
ENERGY RETROFIT
EXISTING HOME
COLD CLIMATE
STAND-OFF FURRING
NEW YORK STATE ENERGY RESEARCH AND DEVELOPMENT AUTHORITY
NYSERDA
WINDOW INSTALLATION
INSULATION
GREENHOMES AMERICA
EXTERIOR WALL INSULATION​
Buildings