Attic or Roof? An Evaluation of Two Advanced Weatherization Packages
- Building Science Corporation, Somerville, MA (United States)
This project examines implementation of advanced retrofit measures in the context of a large-scale weatherization program and the archetypal Chicago brick bungalow. One strategy applies best practice air sealing methods and a standard insulation method to the attic floor. The other strategy creates an unvented roof assembly using materials and methods typically available to weatherization contractors. Through implementations of the retrofit strategies in a total of eight (8) test homes, the research found that the two different strategies achieve similar reductions in air leakage measurement (55%) and predicted energy performance (18%) relative to the pre-retrofit conditions.
- Research Organization:
- Building Science Corporation, Somerville, MA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Building Technologies Office (EE-5B) (Building America)
- DOE Contract Number:
- KNDJ-0-40337-00
- OSTI ID:
- 1219733
- Report Number(s):
- DOE/GO-102012-3504; 5887
- Country of Publication:
- United States
- Language:
- English
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