VRE24-46 1" (25mm) Insulating - Viracon
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1" (25mm) Insulating VRE24-46

1" (25mm) Insulating VRE24-46

1/4" (6mm) Optiwhite™ with VRE-46 #2
1/2" (13.2mm) space - air filled
1/4" (6mm) Optiwhite™

Reflected Color
Transmitted Color
Diagram

Performance Data

Show data as:

Transmittance

Visible Light
45%
Solar Energy
29%
UV
23%

Reflectance

Visible Light-Exterior
36%
Visible Light-Interior
16%
Solar Energy
53%

NFRC U-Value

Winter
0.30 (hr x sqft x °F)
Summer
0.27 (hr x sqft x °F)
Shading Coefficient
0.35
Relative Heat Gain
74Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.31
LSG
1.45

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.