Optiwhite 1" (25mm) Insulating - Viracon
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1" (25mm) Insulating Optiwhite

1" (25mm) Insulating Optiwhite

1/4" (6mm) Optiwhite
1/2" (13.2mm) space - air filled
1/4" (6mm) Optiwhite™

Reflected Color
Transmitted Color
Diagram

Performance Data

Show data as:

Transmittance

Visible Light
83%
Solar Energy
81%
UV
74%

Reflectance

Visible Light-Exterior
15%
Visible Light-Interior
15%
Solar Energy
14%

NFRC U-Value

Winter
0.47 (hr x sqft x °F)
Summer
0.49 (hr x sqft x °F)
Shading Coefficient
0.95
Relative Heat Gain
197Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.83
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.