High R-Value Roofs

High R-value enclosures are an important area of research in the development of ultra low energy buildings. BSC’s ongoing High R-Value Enclosure project, undertaken for the US Department of Energy’s Building America program, aims to identify and evaluate residential assemblies that cost-effectively provide a 50 percent improvement in thermal resistance over current building code minimums. The documents below summarize our research results related to roofs.

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BA-1312: Application of Spray Foam Insulation Under Plywood and OSB Roof Sheathing

By Aaron Grin, Jonathan Smegal and Joseph Lstiburek
Download.pdf  10.3 MB


BA-1503: Measure Guideline—Deep Energy Enclosure Retrofit (DEER) for Zero Energy House (ZERH) Flat Roofs

By Honorata Loomis and Betsy Pettit
Download.pdf  3.2 MB


BA-1006: Building America Special Research Project—High-R Roofs Case Study Analysis

By John Straube and Aaron Grin
Download.pdf  2.9 MB


BA-1005: Building America Special Research Project: High R-Value Enclosures for High Performance Residential Buildings in All Climate Zones

By John Straube
Download.pdf  2.7 MB

1-4 of 4 Items