Products
1" (25mm) Insulating VE18-42
1" (25mm) Insulating VE18-42
1/4" (6mm) Optiblue® with VE-42 #2
1/2" (13.2mm) space - argon filled
1/4" (6mm) clear
Reflected Color
Transmitted Color
Performance Data
Show data as:
Transmittance
Visible Light
27%
Solar Energy
19%
UV
12%
Reflectance
Visible Light-Exterior
12%
Visible Light-Interior
14%
Solar Energy
16%
NFRC U-Value
Winter
0.27 (hr x sqft x °F)
Summer
0.24 (hr x sqft x °F)
Shading Coefficient
0.31
Relative Heat Gain
65Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.27
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.