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Window, High R Value

Last Updated: 09/30/19

High performance or “Hi-R” windows use advanced technology to deliver up to a seven-fold improvement in a window’s thermal performance.

Product Details
Procurement Info

Where to Buy

  • No federal source identified
Life Cycle Cost Savings

Life Cycle Costing (LCC) aims to quantify the financial impact of a product over its entire life cycle to assist consumers in making decisions that will save them money over the long term.

GSA's Proving Ground found that installation of Hi-R panel retrofits could provide as much as a 41% heating savings in winter, or an 11% estimated savings for an entire buidling's heating and cooling demand. Estimated payback is 9 years for triple-pane retrofits and less for double-pane retrofits.

Guiding Principles
Contributes to meeting The Guiding Principles for High Performance and Sustainable Buildings
Additional Guidance

Highly insulating window panel retrofits are installed on top of existing windows. GSA's Green Proving Ground recommends double-pane retrofits for buildings in cold climates with single-pane windows but notes that site-specific evaluation is critical.

Potential LEED Contributions

This product may contribute* toward points in multiple LEED v4 rating systems, including areas required for LEED v4 building certification. Primarily, the credits will apply in the Building Design and Construction (BD+C) category. This includes the specialty areas of: New Construction and Major Renovation, Existing Buildings, Core & Shell, Schools, Retail, Data Centers, Warehouse and Distribution Centers, Hospitality, and Healthcare. Specific credits are:

  • Energy & Atmosphere - Optimize Energy Performance

* It is important to note that no products, individually or collectively, can guarantee a specific number of points for LEED Category credit. Each credit will need to be matched to the product by a certified professional.

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