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1" (25mm) Insulating Clear

1" (25mm) Insulating Clear

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

Reflected Color
Transmitted Color

Performance Data

Show data as:

Transmittance

Visible Light
65%
Solar Energy
51%
UV
37%

Reflectance

Visible Light-Exterior
14%
Visible Light-Interior
16%
Solar Energy
11%

NRFC U-Value

Winter
0.45 (hr x sqft x °F)
Summer
0.47 (hr x sqft x °F)
Shading Coefficient
0.71
Relative Heat Gain
148Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.61
LSG
1.07

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.