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

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

1/4" (6mm) gray
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
39%
Solar Energy
29%
UV
16%

Reflectance

Visible Light-Exterior
7%
Visible Light-Interior
11%
Solar Energy
7%

NRFC U-Value

Winter
0.35 (hr x sqft x °F)
Summer
0.33 (hr x sqft x °F)
Shading Coefficient
0.45
Relative Heat Gain
95Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.39
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.