Energy Efficiency Current NFRC Ratings
Contact UsEnergy Efficient Windows
American Openings windows have been certified by the National Fenestration Rating Council (NFRC) who provides an independent assessment of the “whole product” energy efficiency rating of the windows that we build. The most recent NFRC ratings for each of our window products appears in the table below.
Additionally, all American Openings vinyl windows have been EnergyStar approved as are over 94% of all ThermaTru® door products. We are proud to be an Energy Star partner and are committed to provide our customers with products that demonstrate the high levels of energy efficiency that the Energy Star designation requires.
For more information:
| Product Type | U-Factor | Solar Heat Gain Coefficient |
Visible Transmittance |
|---|---|---|---|
| Series 200 Aluminum Fixed Picture Window Low-E Dual-Glazed | 0.39 | 0.25 | 0.45 |
| Series 210 Aluminum Single Hung Window Low-E Dual-glazed | 0.51 | 0.23 | 0.45 |
| Series 220/230 Aluminum Horizontal Slide Low-E Dual Glazed | 0.51 | 0.23 | 0.45 |
| Series 2010/2020 Aluminum Patio Door Low-E Dual-Glazed | 0.52 | 0.24 | 0.46 |
| Series V-300 Vinyl Fixed Picture Window Low-E dual Glazed | 0.27 | 0.24 | 0.46 |
| Series V-310 Vinyl Single Hung Low-E Dual Glazed | 0.29 | 0.20 | 0.46 |
| Series V-320/330 Vinyl Horizonal Slide Low-E Dual-Glazed | 0.29 | 0.20 | 0.43 |
| Series V-2002 Vinyl Patio Door Low-E Dual-Glazed | 0.27 | 0.23 | 0.45 |
