Products
1" (25mm) Insulating with RoomSide Low-E VRE2-4322
1" (25mm) Insulating with RoomSide Low-E VRE2-4322
1/4" (6mm) green with VRE-4322 #2
1/2" (13.2mm) space - argon filled
1/4" (6mm) RoomSide™ Low-E #4
Reflected Color
Transmitted Color
Performance Data
Show data as:
Transmittance
Visible Light
36%
Solar Energy
13%
UV
3%
Reflectance
Visible Light-Exterior
19%
Visible Light-Interior
18%
Solar Energy
14%
NFRC U-Value
Winter
0.20 (hr x sqft x °F)
Summer
0.17 (hr x sqft x °F)
Shading Coefficient
0.21
Relative Heat Gain
44Btu/(hr x sqft)
Solar Heat Gain Coefficient (SHGC)
0.18
LSG
2
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.