U Factor Glass Surface
Temperatures (F)
Reflectance (%) Transmittance (%)  
Product OA U-Value Range | Winter Summer | R-Value Range R-Value SHGC Range SHGC | Winter Summer | | Vis-Out Vis-In Solar | Transmittance Range | Visible Solar UV | Shading
Coefficient
LSG Range Relative
Heat Gain
LSG
SG 5 56/25-100 1"  .16 to .20 0.19 0.20 3 to 5 5.3 .25 to .29 0.25 58.8 85.7 13% 16% 37% 50% to 59% 56% 21% < 1% 0.29 2 to 2.5 60.0 2.24
SG 5 55/34-100 1"  .16 to .20 0.19 0.20 3 to 5 5.3 .30 to .49 0.34 59.2 94.2 14% 14% 32% 50% to 59% 55% 24% < 1% 0.39 1.5 to 2 80.3 1.62
SG 5 62/36-100 1"  .16 to .20 0.20 0.21 3 to 5 5.0 .30 to .49 0.36 58.7 89.1 13% 16% 30% 60% or more 62% 29% 1% 0.41 1.5 to 2 84.9 1.73
SG 7 64/49-100 1"  .09 to .15 0.15 0.16 6 to 8 6.7 .30 to .49 0.49 61.4 99.7 13% 14% 23% 60% or more 64% 36% 1% 0.56 1 to 1.5 115 1.31
SG 6 61/35-150 1-1/2" .16 to .20 0.18 0.18 3 to 5 5.6 .30 to .49 0.35 59.7 89.1 22% 20% 35% 60% or more 61% 28% 1% 0.40 1.5 to 2 82.0 1.78
SG 7 64/49-150 1-1/2" .09 to .15 0.15 0.15 6 to 8 6.7 .30 to .49 0.49 61.4 99.7 13% 14% 23% 60% or more 64% 36% 1% 0.56 1 to 1.5 115 1.31
SG 7 62/35-150 1-1/2" .09 to .15 0.14 0.14 6 to 8 7.1 .30 to .49 0.35 61.9 87.7 13% 16% 30% 60% or more 62% 29% 1% 0.41 1.5 to 2 82.9 1.75
SG 8 57/24-150 1-1/2" .09 to .15 0.13 0.13 6 to 8 7.7 .25 to .29 0.24 62.0 82.3 13% 16% 37% 50% to 59% 57% 22% < 1% 0.28 2 to 2.5 57.4 2.36
SG 8 56/24-150 1-1/2" .09 to .15 0.13 0.13 6 to 8 7.7 .25 to .29 0.24 62.0 83.7 13% 16% 37% 50% to 59% 56% 21% < 1% 0.28 2 to 2.5 57.3 2.31
SG 8 55/33-150 1-1/2" .09 to .15 0.12 0.12 6 to 8 8.3 .30 to .49 0.33 62.6 92.9 14% 14% 32% 50% to 59% 55% 24% < 1% 0.38 1.5 to 2 78.5 1.64
SG­ 12 56/31-150 1-1/2" Less than 09 0.08 0.09 9 or more 12 .30 to .49 0.31 64.9 86.7 16% 19% 34% 50% to 59% 56% 25% < 1% 0.35 1.5 to 2 71.4 1.84
SG 7 68/50-150 1-1/2" .09 to .15 0.15 0.15 6 to 8 6.7 .50 or more 0.50 61.4 93.9 17% 17% 22% 60% or more 68% 40% 1% 0.57 1 to 1.5 117 1.36
SG 7 65/49-150 1-1/2" .09 to .15 0.14 0.14 6 to 8 7.1 .30 to .49 0.49 61.9 92.0 16% 16% 22% 60% or more 65% 38% < 1% 0.56 1 to 1.5 115 1.33
SG 7 66/53-150 1-1/2" .09 to .15 0.14 0.15 6 to 8 7.1 .50 or more 0.53 61.5 95.7 20% 20% 21% 60% or more 66% 42% < 1% 0.61 1 to 1.5 124 1.24
SG­ 12 58/43-150 1-1/2" Less than 09 0.08 0.09 9 or more 12 .30 to .49 0.43 64.8 96.9 19% 19% 24% 50% to 59% 58% 31% < 1% 0.36 1 to 1.5 99.4 1.35
SG­ 12 55/32-150 1-1/2" Less than 09 0.08 0.09 9 or more 12 .30 to .49 0.32 64.8 88.3 16% 19% 31% 50% to 59% 55% 25% < 1% 0.36 1.5 to 2 73.9 1.74