Products
1" (25mm) Insulating CrystalGray
1" (25mm) Insulating CrystalGray
1/4" (6mm) CrystalGray™ with 20% coverage V175 High-Opacity White #2
1/2" (13.2mm) space - argon filled
1/4" (6mm) clear
Reflected Color
Transmitted Color
Performance Data
Show data as:
Transmittance
Visible Light
49%
Solar Energy
37%
UV
22%
Reflectance
Visible Light-Exterior
11%
Visible Light-Interior
21%
Solar Energy
9%
NRFC U-Value
Winter
0.45 (hr x sqft x °F)
Summer
0.47 (hr x sqft x °F)
Shading Coefficient
0.56
Relative Heat Gain
118Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.49
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.