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1-3/4" (44mm) Triple Insulating (Double Coating) VP1-22

1-3/4" (44mm) Triple Insulating (Double Coating) VP1-22

1/4" (6mm) clear with VP-22 #2
1/2" (13.2mm) space - air filled
1/4" (6mm) clear with VE-85 #4
1/2" (13.2mm) space - air filled
1/4" (6mm) clear

Reflected Color
Transmitted Color

Performance Data

Show data as:

Transmittance

Visible Light
19%
Solar Energy
11%
UV
7%

Reflectance

Visible Light-Exterior
19%
Visible Light-Interior
34%
Solar Energy
16%

NRFC U-Value

Winter
0.21 (hr x sqft x °F)
Summer
0.22 (hr x sqft x °F)
Shading Coefficient
0.21
Relative Heat Gain
46Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.19
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.