New and Underutilized Technology: High R-Value Windows
The following information outlines key deployment considerations for high R-value windows within the Federal sector. This information spans:
High R-value windows are highly insulated windows rated at triple pane, R5 or greater (U value 0.22 and lower).
High R-value windows are appropriate for deployment within most building categories. These windows should be considered in building design, renovation, or during window replacement projects.
Key Factors for Deployment
High R-value windows are available within the Federal sector and should be considered in building design, renovation, or during window replacement projects.
The U.S. Department of Energy (DOE) has a volume purchasing program in place.
DOE has a research goal of an R10 window for deployment.
Federal energy savings, cost-effectiveness, and probability of success are ranked 0-5 with 0 representing the lowest ranking and 5 representing the highest ranking. The weighted score is ranked 0-100 with 0 representing the lowest ranking and 100 representing the highest ranking.
|Federal Energy Savings||Cost Effectiveness||Probability of Success||Weighted Score|
The following resources are available:
Cost-Effective Triple Pane and Low E Storm Windows: DOE webinar presentation originally presented in June 2010.
Efficient Windows Collaborative: Organization whose members manufacture and promote energy-efficient windows, offering online information and resources to help readers choose and deploy energy-efficient windows.
Zero Energy Windows: Lawrence Berkeley National Laboratory (LBNL) article covering energy-efficient window technologies and applications.
National Fenestration Rating Council (NFRC): Organization covering energy performance rating and certification programs for fenestration products.
Windows Volume Purchase Products Website: Online resource helping users research and locate volume window purchases.
Highly-Insulating (R-5) Windows and Low-e Storm Windows Volume Purchase Program: Fact sheet overview provided by DOE covering the volume purchase program.
Windows for High Performance Commercial Buildings: Design tool covering energy-efficient window integration.
Windows and Daylighting Software Tools: LBNL list of software and tools for energy-efficient window and daylighting integration.