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1" (25mm) Insulating Optigray

1" (25mm) Insulating Optigray

1/4" (6mm) Optigray® with 20% coverage V933 Warm Gray #2
1/2" (13.2mm) space - air filled
1/4" (6mm) clear

Reflected Color
Transmitted Color

Performance Data

Show data as:

Transmittance

Visible Light
46%
Solar Energy
34%
UV
21%

Reflectance

Visible Light-Exterior
9%
Visible Light-Interior
16%
Solar Energy
7%

NRFC U-Value

Winter
0.47 (hr x sqft x °F)
Summer
0.49 (hr x sqft x °F)
Shading Coefficient
0.53
Relative Heat Gain
114Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.46
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.