VUE4-40 1" (25mm) Insulating with RoomSide Low-E - Viracon
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1" (25mm) Insulating with RoomSide Low-E VUE4-40

1" (25mm) Insulating with RoomSide Low-E VUE4-40

1/4" (6mm) bronze with VUE-40 #2
1/2" (13.2mm) space - air filled
1/4" (6mm) RoomSide™ Low-E #4

Reflected Color
Transmitted Color
Diagram

Performance Data

Show data as:

Transmittance

Visible Light
24%
Solar Energy
10%
UV
2%

Reflectance

Visible Light-Exterior
8%
Visible Light-Interior
14%
Solar Energy
13%

NFRC U-Value

Winter
0.23 (hr x sqft x °F)
Summer
0.20 (hr x sqft x °F)
Shading Coefficient
0.18
Relative Heat Gain
38Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.15
LSG
1.60

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.