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1" (25mm) Insulating Clear

1" (25mm) Insulating Clear

1/4" (6mm) clear with 50% 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
39%
UV
23%

Reflectance

Visible Light-Exterior
23%
Visible Light-Interior
35%
Solar Energy
17%

NRFC U-Value

Winter
0.45 (hr x sqft x °F)
Summer
0.47 (hr x sqft x °F)
Shading Coefficient
0.57
Relative Heat Gain
121Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.50
LSG
0.98

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.