1-3/4" (44mm) Triple Insulating (Double Coating) VE24-42
1/4" (6mm) Optiwhite™ with VE-42 #2
1/2" (13.2mm) space - air filled
1/4" (6mm) Optiwhite™ with VE-85 #4
1/2" (13.2mm) space - air filled
1/4" (6mm) Optiwhite™
Reflected Color
Transmitted Color
Performance Data
Show data as:
Transmittance
Visible Light
35%
Solar Energy
24%
UV
10%
Reflectance
Visible Light-Exterior
22%
Visible Light-Interior
18%
Solar Energy
30%
NFRC U-Value
Winter
0.17 (hr x sqft x °F)
Summer
0.17 (hr x sqft x °F)
Shading Coefficient
0.32
Relative Heat Gain
67Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.28
LSG
1.25
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.