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1" (25mm) Insulating VRE35-46

1" (25mm) Insulating VRE35-46

1/4" (6mm) Pure Mid Iron with VRE-46 #2
1/2" (13.2mm) space - argon filled
1/4" (6mm) Pure Mid Iron

Reflected Color
Transmitted Color

Performance Data

Show data as:

Transmittance

Visible Light
45%
Solar Energy
27%
UV
20%

Reflectance

Visible Light-Exterior
36%
Visible Light-Interior
15%
Solar Energy
49%

NRFC U-Value

Winter
0.25 (hr x sqft x °F)
Summer
0.22 (hr x sqft x °F)
Shading Coefficient
0.34
Relative Heat Gain
71Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.30
LSG
1.50

Viracon's solar and optical performance data is center of glass data based on the National Fenestration Rating Council measurement standards, calculated using Lawrence Berkeley National Laboratory's (LBNL) WINDOW 7 software.

Winter and Summer U-Values are the only performance values available for spandrel glazing. The U-Values for spandrel glazing are the same as the corresponding vision unit. The spandrel color does not impact U-Value.