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1-5/16" (31.96mm) Insulating Laminated Gray

1-5/16" (31.96mm) Insulating Laminated Gray

1/4" (6mm) gray with 50% coverage V175 High-Opacity White #2
1/2" (13.2mm) space - air filled
1/4" (6mm) clear
.060" (1.52mm) clear PVB
1/4" (6mm) clear

Reflected Color
Transmitted Color

Performance Data

Show data as:

Transmittance

Visible Light
24%
Solar Energy
16%
UV
<1%

Reflectance

Visible Light-Exterior
9%
Visible Light-Interior
31%
Solar Energy
8%

NRFC U-Value

Winter
0.46 (hr x sqft x °F)
Summer
0.47 (hr x sqft x °F)
Shading Coefficient
0.38
Relative Heat Gain
82Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.33
LSG
0.73

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.