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1" (25mm) Insulating VS1-14

1" (25mm) Insulating VS1-14

1/4" (6mm) clear with VS-14 #2 and 60% coverage V933 Warm Gray #2
1/2" (13.2mm) space - air filled
1/4" (6mm) clear

Reflected Color
Transmitted Color

Performance Data

Show data as:

Transmittance

Visible Light
6%
Solar Energy
4%
UV
2%

Reflectance

Visible Light-Exterior
22%
Visible Light-Interior
39%
Solar Energy
18%

NRFC U-Value

Winter
0.40 (hr x sqft x °F)
Summer
0.41 (hr x sqft x °F)
Shading Coefficient
0.18
Relative Heat Gain
41Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.15
LSG
0.40

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.