Hi-R Low-E Window Retrofit System
High performance or “Hi-R” windows use advanced technology to deliver up to a seven-fold improvement in a window’s thermal performance. At a GSA test bed location in Provo, Utah, Hi-R panel retrofits, which are installed on top of existing windows, reduced heating loads by up to 41%. View full-size infographic. [PDF - 241 KB]
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Last updated: Oct 18, 2024
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