Glass Performance Data

Ordinary Glass

Single Pane
1/8”
3mm
IG Type
and Coating
Clear
Tinted
    Visible light
    Trans-
    mittance
  • 90%
  • 68%
    External
    Reflectance
  • 8%
  • 7%
    Internal
    Reflectance
  • 8%
  • 7%
    Fade Transmission
    UV
  • 71%
  • 38%
    ISO
  • 84%
  • 58%
    SOLAR
    HEAT GAIN
    COEFFICIENT
  • 0.86
  • 0.73
    U-FACTOR
    IP
  • 1.04
  • 1.04
    SI
  • 5.91
  • 5.91
3/4" Double Pane
1/8” | 1/2” | 1/8”
3mm | 12.7mm | 3mm
IG Type
and Coating
Clear/Clear
Tinted/Clear
Clear/Pyro Low-E #3
    Visible light
    Trans-
    mittance
  • 82%
  • 61%
  • 76%
    External
    Reflectance
  • 15%
  • 10%
  • 17%
    Internal
    Reflectance
  • 15%
  • 14%
  • 17%
    Fade Transmission
    UV
  • 58%
  • 32%
  • 50%
    ISO
  • 75%
  • 52%
  • 68%
    SOLAR
    HEAT GAIN
    COEFFICIENT
  • 0.78
  • 0.63
  • 0.72
    U-FACTOR:IPSI
    Air
    Fill
  • 2.73
  • 2.73
  • 1.93
  • 0.48
  • 0.48
  • 0.34
    Argon
    Fill
  • --
  • --
  • 1.70
  • --
  • --
  • 0.30

Dual 3mm Pane With LoĒ™ Coatings

3/4" 2 Pane LoĒ
1/8” | 1/2” | 1/8”
3mm | 12.7mm | 3mm
IG Type
and Coating
Clear/LoĒ-180 #3
LoĒ²-272 #2/Clear
LoĒ²-270 #2/Clear
LoĒ³-366 #2/Clear
LoĒ³-340 #2/Clear
    Visible light
    Trans-
    mittance
  • 79%
  • 72%
  • 70%
  • 65%
  • 39%
    External
    Reflectance
  • 15%
  • 11%
  • 12%
  • 11%
  • 13%
    Internal
    Reflectance
  • 15%
  • 12%
  • 13%
  • 12%
  • 16%
    Fade Transmission
    UV
  • 28%
  • 16%
  • 14%
  • 5%
  • 2%
    ISO
  • 62%
  • 55%
  • 53%
  • 43%
  • 27%
    SOLAR
    HEAT GAIN
    COEFFICIENT
  • 0.68
  • 0.41
  • 0.37
  • 0.27
  • 0.18
    U-FACTOR:IPSI
    Air
    Fill
  • 1.76
  • 1.70
  • 1.70
  • 1.65
  • 1.65
  • 0.31
  • 0.30
  • 0.30
  • 0.29
  • 0.29
    Argon
    Fill
  • 1.48
  • 1.42
  • 1.42
  • 1.36
  • 1.42
  • 0.26
  • 0.25
  • 0.25
  • 0.24
  • 0.25
3/4" 2 Pane LoĒ + i89
1/8” | 1/2” | 1/8”
3mm | 12.7mm | 3mm
IG Type
and Coating
LoĒ -180 #2/i89 #4
LoĒ²-272 #2/i89 #4
LoĒ²-270 #2/i89 #4
LoĒ³-366 #2/i89 #4
LoĒ³-340 #2/i89 #4
    Visible light
    Trans-
    mittance
  • 77%
  • 70%
  • 69%
  • 63%
  • 38%
    External
    Reflectance
  • 15%
  • 11%
  • 12%
  • 11%
  • 15%
    Internal
    Reflectance
  • 14%
  • 11%
  • 12%
  • 11%
  • 15%
    Fade Transmission
    UV
  • 27%
  • 16%
  • 14%
  • 5%
  • 2%
    ISO
  • 61%
  • 53%
  • 51%
  • 41%
  • 26%
    SOLAR
    HEAT GAIN
    COEFFICIENT
  • 0.62
  • 0.41
  • 0.36
  • 0.27
  • 0.17
    U-FACTOR:IPSI
    Air
    Fill
  • 1.36
  • 1.31
  • 1.31
  • 1.31
  • 1.31
  • 0.24
  • 0.23
  • 0.23
  • 0.23
  • 0.23
    Argon
    Fill
  • 1.19
  • 1.14
  • 1.14
  • 1.14
  • 1.14
  • 0.21
  • 0.20
  • 0.20
  • 0.20
  • 0.20

Triple 3mm Pane With LoĒ Coatings

7/8" 3 Pane w/2 LoĒ
1/8” | 1/4” | 1/8” | 1/4” | 1/8”
3mm | 6.5mm | 3mm | 6.5mm | 3mm
IG Type
and Coating
LoĒ-180 #2/Clear/Ē180 #5
LoĒ²-272 #2/Clear/Ē180 #5
LoĒ²-270 #2/Clear/Ē180 #5
LoĒ³-366 #2/Clear/Ē180 #5
LoĒ³-340 #2/Clear/Ē180 #5
    Visible light
    Trans-
    mittance
  • 70%
  • 63%
  • 62%
  • 57%
  • 34%
    External
    Reflectance
  • 20%
  • 15%
  • 16%
  • 14%
  • 15%
    Internal
    Reflectance
  • 20%
  • 18%
  • 19%
  • 18%
  • 21%
    Fade Transmission
    UV
  • 13%
  • 8%
  • 7%
  • 2%
  • 1%
    ISO
  • 50%
  • 44%
  • 43%
  • 36%
  • 22%
    SOLAR
    HEAT GAIN
    COEFFICIENT
  • 0.56
  • 0.37
  • 0.33
  • 0.25
  • 0.16
    U-FACTOR:IPSI
    Air
    Fill
  • 1.48
  • 1.42
  • 1.42
  • 1.42
  • 1.42
  • 0.26
  • 0.25
  • 0.25
  • 0.25
  • 0.25
    Argon
    Fill
  • 1.14
  • 1.14
  • 1.14
  • 1.14
  • 1.14
  • 0.20
  • 0.20
  • 0.20
  • 0.20
  • 0.20
1 1/8" 3 Pane w/2 LoĒ
1/8” | 3/8” | 1/8” | 3/8” | 1/8”
3mm | 9.5mm | 3mm | 9.5mm | 3mm
IG Type
and Coating
LoĒ-180 #2/Clear/Ē180 #5
LoĒ²-272 #2/Clear/Ē180 #5
LoĒ²-270 #2/Clear/Ē180 #5
LoĒ³-366 #2/Clear/Ē180 #5
LoĒ³-340 #2/Clear/Ē180 #5
    Visible light
    Trans-
    mittance
  • 70%
  • 63%
  • 62%
  • 57%
  • 34%
    External
    Reflectance
  • 20%
  • 15%
  • 16%
  • 14%
  • 15%
    Internal
    Reflectance
  • 20%
  • 18%
  • 19%
  • 18%
  • 21%
    Fade Transmission
    UV
  • 13%
  • 8%
  • 7%
  • 2%
  • 1%
    ISO
  • 50%
  • 44%
  • 43%
  • 36%
  • 22%
    SOLAR
    HEAT GAIN
    COEFFICIENT
  • 0.56
  • 0.37
  • 0.33
  • 0.25
  • 0.16
    U-FACTOR:IPSI
    Air
    Fill
  • 1.08
  • 1.08
  • 1.08
  • 1.08
  • 1.08
  • 0.19
  • 0.19
  • 0.19
  • 0.19
  • 0.19
    Argon
    Fill
  • 0.85
  • 0.85
  • 0.85
  • 0.85
  • 0.85
  • 0.15
  • 0.15
  • 0.15
  • 0.15
  • 0.15
1 3/8" 3 Pane w/2 LoĒ
1/8” | 1/2” | 1/8” | 1/2” | 1/8”
3mm | 12.7mm | 3mm | 12.7mm | 3mm
IG Type
and Coating
LoĒ-180 #2/Clear/Ē180 #5
LoĒ²-272 #2/Clear/Ē180 #5
LoĒ²-270 #2/Clear/Ē180 #5
LoĒ³-366 #2/Clear/Ē180 #5
LoĒ³-340 #2/Clear/Ē180 #5
    Visible light
    Trans-
    mittance
  • 70%
  • 63%
  • 62%
  • 57%
  • 34%
    External
    Reflectance
  • 20%
  • 15%
  • 16%
  • 14%
  • 15%
    Internal
    Reflectance
  • 20%
  • 18%
  • 19%
  • 18%
  • 21%
    Fade Transmission
    UV
  • 13%
  • 8%
  • 7%
  • 2%
  • 1%
    ISO
  • 50%
  • 44%
  • 43%
  • 36%
  • 22%
    SOLAR
    HEAT GAIN
    COEFFICIENT
  • 0.56
  • 0.37
  • 0.33
  • 0.25
  • 0.16
    U-FACTOR:IPSI
    Air
    Fill
  • 0.97
  • 0.91
  • 0.91
  • 0.91
  • 0.91
  • 0.17
  • 0.16
  • 0.16
  • 0.16
  • 0.16
    Argon
    Fill
  • 0.74
  • 0.74
  • 0.74
  • 0.74
  • 0.74
  • 0.13
  • 0.13
  • 0.13
  • 0.13
  • 0.13
1 3/8" 3 Pane w/2 LoĒ + i89
1/8” | 1/2” | 1/8” | 1/2” | 1/8”
3mm | 12.7mm | 3mm | 12.7mm | 3mm
IG Type
and Coating
LoĒ-180 #2/Ē180 #4/i89 #6
LoĒ²-272 #2/Ē180 #4/i89 #6
LoĒ²-270 #2/Ē180 #4/i89 #6
LoĒ³-366 #2/Ē180 #4/i89 #6
LoĒ³-340 #2/Ē180 #4/i89 #6
    Visible light
    Trans-
    mittance
  • 68%
  • 62%
  • 60%
  • 56%
  • 33%
    External
    Reflectance
  • 21%
  • 15%
  • 16%
  • 14%
  • 15%
    Internal
    Reflectance
  • 19%
  • 16%
  • 17%
  • 16%
  • 19%
    Fade Transmission
    UV
  • 13%
  • 8%
  • 7%
  • 2%
  • 1%
    ISO
  • 49%
  • 43%
  • 42%
  • 35%
  • 22%
    SOLAR
    HEAT GAIN
    COEFFICIENT
  • 0.53
  • 0.36
  • 0.32
  • 0.24
  • 0.15
    U-FACTOR:IPSI
    Air
    Fill
  • 0.79
  • 0.79
  • 0.79
  • 0.79
  • 0.79
  • 0.14
  • 0.14
  • 0.14
  • 0.14
  • 0.14
    Argon
    Fill
  • 0.68
  • 0.62
  • 0.62
  • 0.62
  • 0.62
  • 0.12
  • 0.11
  • 0.11
  • 0.11
  • 0.11

Dual 6mm Pane With LoĒ Coatings

1" 2 Pane w/ LoĒ
1/4" | 1/2" | 1/4"
6mm | 12.7mm | 6mm
IG Type
and Coating
LoĒ-180 #2/Clear
LoĒ-180ESC #2/Clear
LoĒ2-272 #2/Clear
LoĒ2-270 #2/Clear
LoĒ3-366 #2/Clear
LoĒ2-240 #2/Clear
LoĒ3-340 #2/Clear
    Visible light
    Trans-
    mittance
  • 77%
  • 77%
  • 70%
  • 68%
  • 63%
  • 37%
  • 38%
    External
    Reflectance
  • 15%
  • 15%
  • 11%
  • 12%
  • 11%
  • 13%
  • 13%
    Internal
    Reflectance
  • 14%
  • 14%
  • 11%
  • 13%
  • 12%
  • 10%
  • 15%
    Fade Transmission
    UV
  • 24%
  • 21%
  • 14%
  • 12%
  • 4%
  • 13%
  • 2%
    ISO
  • 60%
  • 59%
  • 53%
  • 49%
  • 41%
  • 32%
  • 26%
    SOLAR
    HEAT GAIN
    COEFFICIENT
  • 0.60
  • 0.62
  • 0.40
  • 0.36
  • 0.28
  • 0.25
  • 0.19
    U-FACTOR:IPSI
    Air
    Fill
  • 1.72
  • 1.74
  • 1.67
  • 1.65
  • 1.62
  • 1.69
  • 1.64
  • 0.30
  • 0.31
  • 0.29
  • 0.29
  • 0.29
  • 0.30
  • 0.29
    Argon
    Fill
  • 1.46
  • 1.49
  • 1.41
  • 1.39
  • 1.36
  • 1.44
  • 1.37
  • 0.26
  • 0.26
  • 0.25
  • 0.24
  • 0.24
  • 0.25
  • 0.24

Dual 3mm Pane With Comfort Select® Coatings

3/4" 2 Pane w/1 Comfort Select
1/8” | 1/2” | 1/8”
3mm | 12.7mm | 3mm
IG Type
and Coating
CS 23 #2/Clear
CS 28 #2/Clear
CS 36 #2/Clear
CS 40 #2/Clear
Clear/CS 73P #2
Clear/CS 73P #2
    Visible light
    Trans-
    mittance
  • 50%
  • 63%
  • 67%
  • 73%
  • 77%
  • 75%
    External
    Reflectance
  • 50%
  • 21%
  • 14%
  • 15%
  • 12%
  • 18%
    Internal
    Reflectance
  • 21%
  • 16%
  • 17%
  • 13%
  • 17%
  • 17%
    Fade Transmission
    UV
  • 13%
  • 17%
  • 16%
  • 19%
  • 48%
  • 43%
    ISO
  • 36%
  • 48%
  • 51%
  • 56%
  • 67%
  • 64%
    SOLAR
    HEAT GAIN
    COEFFICIENT
  • 0.22
  • 0.28
  • 0.36
  • 0.39
  • 0.73
  • 0.73
    U-FACTOR:IPSI
    Air
    Fill
  • 1.65
  • 1.65
  • 1.65
  • 1.70
  • 1.93
  • 1.87
  • 0.29
  • 0.29
  • 0.29
  • 0.30
  • 0.34
  • 0.33
    Argon
    Fill
  • 1.36
  • 1.36
  • 1.36
  • 1.42
  • 1.70
  • 1.65
  • 0.24
  • 0.24
  • 0.24
  • 0.25
  • 0.30
  • 0.29
3/4" 2 Pane w/2 Comfort Select
1/8” | 1/2” | 1/8”
3mm | 12.7mm | 3mm
IG Type
and Coating
CS 23 #2/Clear/CS 73P #4
CS 28 #2/Clear/CS 73P #4
CS 36 #2/Clear/CS 73P #4
CS 40 #2/Clear/CS 73P #4
CS 73P #2/Clear/CS 73P #4
CS 73 #2/Clear/CS 73P #4
    Visible light
    Trans-
    mittance
  • 47%
  • 59%
  • 62%
  • 68%
  • 72%
  • 70%
    External
    Reflectance
  • 22%
  • 15%
  • 16%
  • 14%
  • 19%
  • 19%
    Internal
    Reflectance
  • 23%
  • 18%
  • 20%
  • 16%
  • 20%
  • 20%
    Fade Transmission
    UV
  • 11%
  • 14%
  • 13%
  • 16%
  • 40%
  • 36%
    ISO
  • 33%
  • 43%
  • 46%
  • 50%
  • 60%
  • 57%
    SOLAR
    HEAT GAIN
    COEFFICIENT
  • 0.21
  • 0.27
  • 0.34
  • 0.37
  • 0.63
  • 0.61
    U-FACTOR:IPSI
    Air
    Fill
  • 1.31
  • 1.31
  • 1.36
  • 1.36
  • 1.53
  • 1.48
  • 0.23
  • 0.23
  • 0.24
  • 0.24
  • 0.27
  • 0.26
    Argon
    Fill
  • 1.14
  • 1.14
  • 1.14
  • 1.14
  • 1.36
  • 1.31
  • 0.20
  • 0.20
  • 0.20
  • 0.20
  • 0.24
  • 0.23

Triple 3mm Pane With Comfort Select

1 3/8" 3 Pane w/2 Comfort Select
1/8” | 1/2” | 1/8” | 1/2” | 1/8”
3mm | 12.7mm | 3mm | 12.7mm | 3mm
IG Type
and Coating
CS 23 #2/Clear/CS 73P #5
CS 28 #2/Clear/CS 73P #5
CS 36 #2/Clear/CS 73P #5
CS 40 #2/Clear/CS 73P #5
CS 73P #2/Clear/CS 73P #5
CS 73P #2/Clear/CS 73P #5
    Visible light
    Trans-
    mittance
  • 43%
  • 54%
  • 57%
  • 62%
  • 66%
  • 64%
    External
    Reflectance
  • 24%
  • 19%
  • 20%
  • 19%
  • 24%
  • 24%
    Internal
    Reflectance
  • 27%
  • 23%
  • 24%
  • 21%
  • 24%
  • 24%
    Fade Transmission
    UV
  • 9%
  • 12%
  • 12%
  • 14%
  • 34%
  • 30%
    ISO
  • 30%
  • 39%
  • 42%
  • 46%
  • 54%
  • 52%
    SOLAR
    HEAT GAIN
    COEFFICIENT
  • 0.20
  • 0.25
  • 0.32
  • 0.34
  • 0.58
  • 0.56
    U-FACTOR:IPSI
    Air
    Fill
  • 1.02
  • 1.02
  • 1.02
  • 1.02
  • 1.36
  • 1.08
  • 0.18
  • 0.18
  • 0.18
  • 0.18
  • 0.20
  • 0.19
    Argon
    Fill
  • 0.79
  • 0.79
  • 0.79
  • 0.79
  • 0.91
  • 0.91
  • 0.14
  • 0.14
  • 0.14
  • 0.14
  • 0.16
  • 0.16

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