Energy Efficient Window Ratings
Certified Energy 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.
| Vinyl Windows | U-Factor | Solar Heat Gain | Visible Transmittance |
|---|---|---|---|
|
V-300 Picture Window |
0.27 |
0.24 |
0.48 |
|
V-310 Single Hung |
0.30 |
0.22 |
0.44 |
|
V-320 Horizontal Slider |
0.30 |
0.22 |
0.44 |
|
V-3000 Sliding Glass Door |
0.27 |
0.23 |
0.46 |
| Aluminum Windows | U-Factor | Solar Heat Gain | Visible Transmittance |
|---|---|---|---|
|
200 Picture Window |
0.38 |
0.26 |
0.51 |
|
210 Single Hung |
0.47 |
0.24 |
0.46 |
|
220/330 Horizontal Slider |
0.47 |
0.24 |
0.46 |
|
2020/2010 Sliding Glass Door |
0.48 |
0.25 |
0.48 |