NFRC Thermal Performance Data

NFRC Thermal Performance DATA

NFRC Ratings:
The NFRC rating provides a fair, accurate and easily understandable description of a window or door's thermal performance.
All testing is done ny NFRC-accredited laboratories and the results are sent to the inspection agency for evaluation. Lab
accreditation includes annual inspections and competence testing. The value represents the thermal transmittance for the
entire product, including the center of glass and frame performance data. the lower the U-value, the less thermal transfer
takes place.

NFRC Thermal Performance Testing*
Product Type	Unit "U" Value with Maximizer Plus IG	Solar Heat Gain Coefficient	Visible Light Transmission
Products with Low-E Maximizer Plus IG
Eagle Axiom Casement (Vent)	.35	.29	.48
Eagle Axiom Casement (1-piece Fixed, <= 24 sq. ft.)	.29	.33	.56
Eagle Axiom Casement (1-piece Fixed, > 24 sq. ft.)	.30	.32	.55
Eagle Axiom Awning	.35	.29	.48
Talon Double Hung	.35	.31	.53
Double Hung (Fixed)	.32	.31	.54
Double-Hung Replacement Sash Kei (<= 10 sq. ft.)	.31	.31	.53
Talon RetroFit Double-Hung (<= 10 sq. ft.)	.33	.31	.53
Slide-By	.33	.31	.54
Auxiliary and Circle (<= 15 sq. ft.)	.29	.36	.62
Auxiliary and Circle (> 15 sq. ft.)	.29	.34	.60
Ascent Sliding Patio Door	.32	.32	.56
Ascent Sliding Patio Door Sidelite	.33	.31	.52
Ascent Sliding French Door	.33	.27	.46
Ascent Sliding French Door Sidelite	.34	.24	.41
Ascent Inswing Door (Vent)	.33	.25	.41
Ascent Inswing Door (Fixed)	.33	.25	.41
Ascent Inswing Door Sidelite	.34	.24	.40
Ascent Outswing Door (Vent)	.35	.25	.42
Ascent Outswing Door (Fixed)	.35	.25	.42
Ascent Outswing Door Sidelite	.36	.24	.40
Products with Impact Resistant Low-E IG
Auxiliary	.27	.37	.57
Eagle Axiom Casement (Vent)	.37	.32	.46
Eagle Axiom Casement (1-piece Fixed)	.32	.36	.54
Eagle Axiom Awning	.37	.32	.46
Talon Double-Hung	.34	.34	.50
Ascent Sliding French Door	.35	.30	.44
Ascent Sliding French Door Sidelite	.37	.27	.39
Ascent Outswing Door (Vent)	.38	.28	.40
Ascent Outswing Door (Fixed)	.38	.28	.40
Ascent Outswing Door Sidelite	.38	.27	.39

Notes:
* NFRC testing was performed using NRFC 100 Procedure for Determining Fenestration Products Thermal Properties.

Sliding French, inswing and outswing doors were tested with the SPI panel option.

All values in the table above are based off units using Low-E (.041) argon filled with no grilles or MDL bars.

For more information about NFRC, visit www.NFRC.org. You can also write to them at:
NFRC
962 Wayne Avenue, Suite 750
Silver Springs, MD 20910
(301) 589-NFRC