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1" (25mm) Insulating VZRE32-38

1" (25mm) Insulating VZRE32-38

1/4" (6mm) CrystalBlue™ with VRE-38 #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
21%
Solar Energy
10%
UV
3%

Reflectance

Visible Light-Exterior
21%
Visible Light-Interior
15%
Solar Energy
31%

NRFC U-Value

Winter
0.29 (hr x sqft x °F)
Summer
0.25 (hr x sqft x °F)
Shading Coefficient
0.20
Relative Heat Gain
43Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.17
LSG
1.24

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.