VZE3-42 1" (25mm) Insulating - Viracon
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1" (25mm) Insulating VZE3-42

1" (25mm) Insulating VZE3-42

1/4" (6mm) gray with VE-42 #2
1/2" (13.2mm) space - air filled
1/4" (6mm) clear with VZE-SC #3

Reflected Color
Transmitted Color
Diagram

Performance Data

Show data as:

Transmittance

Visible Light
17%
Solar Energy
8%
UV
2%

Reflectance

Visible Light-Exterior
8%
Visible Light-Interior
10%
Solar Energy
10%

NFRC U-Value

Winter
0.29 (hr x sqft x °F)
Summer
0.26 (hr x sqft x °F)
Shading Coefficient
0.20
Relative Heat Gain
43Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.17
LSG
1

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.