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1" (25mm) Insulating VRE13-4322

1" (25mm) Insulating VRE13-4322

1/4" (6mm) Starphire® with VRE-4322 #2 and 30% coverage V175 High-Opacity White #2
1/2" (13.2mm) space - argon filled
1/4" (6mm) Starphire®

Reflected Color
Transmitted Color

Performance Data

Show data as:

Transmittance

Visible Light
35%
Solar Energy
15%
UV
6%

Reflectance

Visible Light-Exterior
30%
Visible Light-Interior
24%
Solar Energy
48%

NRFC U-Value

Winter
0.25 (hr x sqft x °F)
Summer
0.21 (hr x sqft x °F)
Shading Coefficient
0.20
Relative Heat Gain
44Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.18
LSG
1.94

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.