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9/16" (14mm) Laminated with RoomSide Low-E VS31-20

9/16" (14mm) Laminated with RoomSide Low-E VS31-20

1/4" (6mm) UltraClear® with VS-20 #2
.060" (1.52mm) clear PVB
1/4" (6mm) RoomSide™ Low-E #4

Reflected Color
Transmitted Color

Performance Data

Show data as:

Transmittance

Visible Light
20%
Solar Energy
13%
UV
<1%

Reflectance

Visible Light-Exterior
25%
Visible Light-Interior
29%
Solar Energy
27%

NRFC U-Value

Winter
0.61 (hr x sqft x °F)
Summer
0.47 (hr x sqft x °F)
Shading Coefficient
0.29
Relative Heat Gain
66Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.26
LSG
0.77

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.