Energy Performance Data
As an ENERGY STAR® Partner, Peak Profile is
committed to manufacturing energy efficient windows. As part of our
commitment to energy efficiency, our windows are certified by the National Fenestration Rating Council (NFRC).
Search NFRC For Peak Profile Products.
A quick description the NFRC label rates:
- U-factor: How well a window keeps heat inside a building.
- Solar heat gain: A window's ability to block warming caused by sunlight.
- Visible light transmittance: How much light gets through a product.
- Air Leakage: A measure of air infiltration through a window.
More detailed information on the
NFRC ENERGY Performance Label is found at the NFRC website.
Our LowE glass is Solarban 60, and our LowE 70 is Solarban 70XL. Both are a
PPG Solarban Glass Product.
| Patio Door |
Structural Rating |
Glass Type |
U-factor |
SHGC |
VT |
| Sliding Glass Door |
R-20 |
Clear
LowE
Gray
LowE 70
Clear Argon
LowE Argon
Gray Argon
LowE 70 Argon
Gray LowE
Gray LowE Argon
Gray LowE 70 Argon
|
0.49
0.35
0.48
0.34
0.47
0.32
0.46
0.31
0.35
0.31
0.30 |
0.75
0.46
0.46
0.31
0.75
0.46
0.46
0.31
0.23
0.23
0.15 |
0.66
0.58
0.22
0.52
0.66
0.58
0.22
0.52
0.19
0.19
0.18 |
Note:
- Values listed above are published for comparison purposes only and is accurate as of January 1, 2009.
- Values listed are calculated on DS annealed glass (tempered for patio doors) without grids.
- Other options may affect performance values.
