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1" (25mm) Insulating with RoomSide Low-E Clear

1" (25mm) Insulating with RoomSide Low-E Clear

1/4" (6mm) clear with 40% coverage V175 High-Opacity White #2
1/2" (13.2mm) space - air filled
1/4" (6mm) RoomSide™ Low-E #4

Reflected Color
Transmitted Color

Performance Data

Show data as:

Transmittance

Visible Light
55%
Solar Energy
40%
UV
27%

Reflectance

Visible Light-Exterior
21%
Visible Light-Interior
30%
Solar Energy
17%

NRFC U-Value

Winter
0.35 (hr x sqft x °F)
Summer
0.33 (hr x sqft x °F)
Shading Coefficient
0.56
Relative Heat Gain
116Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.48
LSG
1.15

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.