2 0 1 3 P R O D U C T G U I D E VIRACON PRODUCT GUIDE 2013 ...

GLASS SUBSTRATES
Glass Substrate Location
1" VRE2-54 insulating
1/4" (6mm) green with VRE-54 #2
1/2" (13.2mm) airspace
1/4" (6mm) clear
1" VRE1-54/green insulating
1/4” (6mm) clear with VRE-54 #2
1/2” (13.2mm) airspace
1/4” (6mm) green
insulating glass
In units with multiple glass plies, it is
important to specify the specific glass
substrate for each ply. When a tinted glass
substrate is selected typically only one ply
of the fabricated glass unit is tinted while
the other ply remains clear. The tinted ply
should be placed to the exterior to reduce
solar heat gain.
VLT 40%
Winter u-value 0.30
Summer u-value 0.27
SHGC 0.24
VLT 40%
Winter u-value 0.30
Summer u-value 0.27
SHGC 0.29
9/16" VLE2-70 LAMINATED
1/4" (6mm) green with VLE-70 #2
.060 clear PVB
1/4" (6mm) clear
9/16" VLE1-70/green LAMINATED
1/4” (6mm) clear with VLE-70 #2
.060” Clear PVB
1/4” (6mm) green
laminated glass
One exception is laminated glass.
Since there is no airspace to keep the
heat absorbed by the tinted exterior
ply from re-radiating into the building,
the solar heat gain can be improved by
moving the tinted ply to the inboard.
This improvement happens when the
clear coated outboard with high solar
reflectance is placed in front of the tinted
glass.
VLT 57%
Winter u-value 0.96
Summer u-value 0.87
SHGC 0.44
VLT 57%
Winter u-value 0.96
Summer u-value 0.87
SHGC 0.37
VIRACON // COMPONENTS & ENHANCEMENTS
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