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

PERFORMANCE DATA TABLES
VRE1-38 INSULATING SILK-SCREENED GLASS (TABLE 9)
The table compares silk-screen patterns in a white (V175) ceramic frit and a warm gray (V933) ceramic frit with a VRE-38 (Radiant Low-E) coating.
Viraspan
Color
Silk-screen
Coverage
Transmittance
Visible Solar U-V
Reflectance
Exterior Interior Solar
U-Value
Winter Summer
Shading
Coefficient
Relative
Heat Gain
SHGC
LSG
European
U-Value
36% 19% 12% 44% 21% 46% .30 .26 .27 57 .23 1.56 1.5
V175 20% 31% 16% 10% 42% 23% 43% .30 .26 .24 51 .20 1.55 1.5
V933 20% 30% 15% 10% 38% 22% 40% .30 .26 .23 51 .20 1.50 1.5
V175 30% 28% 14% 8% 42% 24% 41% .30 .26 .22 48 .19 1.47 1.5
V933 30% 26% 14% 8% 35% 22% 37% .30 .26 .22 47 .19 1.37 1.5
V175 40% 25% 13% 7% 41% 25% 39% .30 .26 .21 45 .18 1.39 1.5
V933 40% 23% 12% 7% 32% 22% 33% .30 .26 .20 44 .18 1.28 1.5
V175 50% 22% 11% 6% 40% 25% 37% .30 .26 .19 42 .17 1.29 1.5
V933 50% 20% 10% 6% 29% 23% 30% .30 .26 .19 41 .16 1.25 1.5
V175 60% 20% 10% 5% 39% 26% 35% .30 .26 .18 39 .15 1.33 1.5
V933 60% 17% 9% 5% 27% 23% 27% .30 .26 .17 38 .15 1.13 1.5
The performance data for Tables 6-9 applies to insulating glass units constructed with two plies of 1/4” (6 mm) clear glass, a 1/2” (13.2 mm)
air space and a white (V175) or warm gray (V933) silk-screen pattern and VRE (Radiant Low-E) coating on the second (#2) surface.
Silk-screened glass requires heat treating.
VNE1-63 INSULATING SILK-SCREENED GLASS (TABLE 10)
The table compares silk-screen patterns in a white (V175) ceramic frit and a warm gray (V933) ceramic frit with a VNE-63 (Neutral Low-E) coating.
Viraspan Silk-screen Transmittance
Reflectance
U-Value Shading Relative
European
Color Coverage Visible Solar U-V Exterior Interior Solar Winter Summer Coefficient Heat Gain SHGC LSG U-Value
62% 24% 5% 10% 10% 37% .29 .26 .33 70 .29 2.14 1.5
V175 20% 53% 21% 4% 15% 15% 35% .29 .26 .29 62 .25 2.12 1.5
V933 20% 51% 20% 4% 11% 12% 32% .29 .26 .29 61 .25 2.04 1.5
V175 30% 48% 19% 3% 17% 17% 34% .29 .26 .27 58 .23 2.09 1.5
V933 30% 46% 18% 3% 11% 12% 30% .29 .26 .26 56 .23 2.00 1.5
V175 40% 43% 17% 3% 19% 20% 33% .29 .26 .25 54 .22 1.95 1.5
V933 40% 40% 16% 3% 11% 13% 28% .29 .26 .24 52 .21 1.90 1.5
V175 50% 39% 15% 2% 22% 22% 32% .29 .26 .23 50 .20 1.95 1.5
V933 50% 34% 13% 2% 12% 14% 25% .29 .26 .22 48 .19 1.79 1.5
V175 60% 34% 13% 2% 24% 24% 32% .29 .26 .21 46 .18 1.89 1.5
V933 60% 29% 11% 2% 12% 15% 23% .29 .26 .20 43 .17 1.71 1.5
The performance data for Table 10 applies to insulating glass units constructed with two plies of 1/4” (6 mm) clear glass, a 1/2” (13.2 mm)
air space and a white (V175) or warm gray (V933) silk-screen pattern and VNE-63 coating on the second (#2) surface.
Silk-screened glass requires heat treating.
VIRACON // INSULATING GLASS
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