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1" (25mm) Insulating Starphire

1" (25mm) Insulating Starphire

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

Reflected Color
Transmitted Color

Performance Data

Show data as:

Transmittance

Visible Light
69%
Solar Energy
67%
UV
43%

Reflectance

Visible Light-Exterior
14%
Visible Light-Interior
17%
Solar Energy
13%

NRFC U-Value

Winter
0.47 (hr x sqft x °F)
Summer
0.49 (hr x sqft x °F)
Shading Coefficient
0.82
Relative Heat Gain
170Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.71
LSG
0.97

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.