Products
1" (25mm) Insulating VZRE30-38
1" (25mm) Insulating VZRE30-38
1/4" (6mm) Optigray® with VRE-38 #2
1/2" (13.2mm) space - air filled
1/4" (6mm) clear with VZE-SC #3
Reflected Color
Transmitted Color
Performance Data
Show data as:
Transmittance
Visible Light
23%
Solar Energy
10%
UV
2%
Reflectance
Visible Light-Exterior
24%
Visible Light-Interior
15%
Solar Energy
23%
NFRC 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
44Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.17
LSG
1.35
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.