Products
1-1/8" (28.8mm) Insulating VRE1-4322
1-1/8" (28.8mm) Insulating VRE1-4322
3/8" (10mm) clear with VRE-4322 #2
1/2" (13.2mm) space - argon filled
1/4" (6mm) clear
Reflected Color
Transmitted Color
Performance Data
Show data as:
Transmittance
Visible Light
42%
Solar Energy
17%
UV
6%
Reflectance
Visible Light-Exterior
24%
Visible Light-Interior
19%
Solar Energy
30%
NFRC U-Value
Winter
0.24 (hr x sqft x °F)
Summer
0.21 (hr x sqft x °F)
Shading Coefficient
0.24
Relative Heat Gain
52Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.21
LSG
2
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.