Heat Mirror® IG products
Key product attributes
- Heat Mirror® IG provides center-of-glass U-value performance as low as 0.05
- Offers superior winter heating & summer cooling due to its super-insulating multi-cavity design
- Blocks 99% of harmful UV rays
- Maintains a warm glass surface temperature for maximum comfort and minimum condensation during winter
- Weighs about 33% less than triple pane glass. Drop-in solution for framing systems designed for dual-pane glass
- Improves STC by up to 4 dB over dual pane IG and can be used with laminated glass for maximum noise abatement
For a complete list of Heat Mirror products and glazing configurations, download
here.
High solar heat gain (High SGHC) representative configurations
Outside dimension |
Glass config. |
Heat Mirror film |
Gas fill |
Glass thickness |
U-factor performance |
Solar gain performance |
Visible performance |
Tuv |
in |
mm |
in |
mm |
IP units |
SI units |
SHGC |
SC |
Tsol |
Tvis |
Rvis ext. |
RVIS int. |
1 | 25 | Clear/clear | TC88 | Argon - 90% | 1/4 | 6 | 0.21 | 1.18 |
0.47 | 0.54 | 0.35 | 0.64 | 0.15 | 0.14 | 0.004 |
1 | 25 | LowE1/clear | HM88 | Argon - 90% | 1/4 | 6 | 0.20 | 1.15 |
0.48 | 0.55 | 0.39 | 0.68 | 0.18 | 0.17 | 0.003 |
1 | 25 | Clear/clear | TC88 | Krypton - 90% | 1/4 | 6 | 0.15 | 0.83 |
0.47 | 0.54 | 0.35 | 0.64 | 0.15 | 0.14 | 0.004 |
1 | 25 | LowE1/clear | HM88 | Krypton - 90% | 1/4 | 6 | 0.14 | 0.80 |
0.48 | 0.55 | 0.39 | 0.68 | 0.18 | 0.17 | 0.003 |
1.75 | 44 | LowE1/clear | HM88 x 2 | Argon - 90% | 1/4 | 6 | 0.11 | 0.59 |
0.41 | 0.48 | 0.31 | 0.60 | 0.21 | 0.20 | 0.000 |
1.75 | 44 | Clear/clear | TC88 x 2 | Argon - 90% | 1/4 | 6 | 0.10 | 0.59 |
0.39 | 0.44 | 0.25 | 0.52 | 0.15 | 0.13 | 0.000 |
1.75 | 44 | LowE1/clear | HM88 x 2 | Krypton - 90% | 1/4 | 6 | 0.08 | 0.46 |
0.41 | 0.48 | 0.31 | 0.60 | 0.21 | 0.20 | 0.000 |
1.75 | 44 | Clear/clear | TC88 x 2 | Krypton - 90% | 1/4 | 6 | 0.08 | 0.45 |
0.38 | 0.44 | 0.25 | 0.52 | 0.15 | 0.13 | 0.000 |
Low solar heat gain (Low SGHC) representative configurations
Outside dimension |
Glass config. |
Heat Mirror film |
Gas fill |
Glass thickness |
U-factor performance |
Solar gain performance |
Visible performance |
Tuv |
in |
mm |
in |
mm |
IP units |
SI units |
SHGC |
SC |
Tsol |
Tvis |
Rvis ext. |
RVIS int. |
1 | 25 | Clear/clear | SC75 | Argon - 90% | 1/4 | 6 | 0.24 | 1.36 |
0.35 | 0.41 | 0.28 | 0.62 | 0.21 | 0.19 | 0.005 |
1 | 25 | LowE2/clear | HM88 | Argon - 90% | 1/4 | 6 | 0.20 | 1.14 |
0.35 | 0.41 | 0.29 | 0.62 | 0.13 | 0.15 | 0.003 |
1 | 25 | LowE3/clear | HM88 | Argon - 90% | 1/4 | 6 | 0.20 | 1.12 |
0.25 | 0.28 | 0.20 | 0.55 | 0.13 | 0.15 | 0.001 |
1 | 25 | LowE2/clear | HM77 | Argon - 90% | 1/4 | 6 | 0.19 | 1.10 |
0.31 | 0.35 | 0.25 | 0.55 | 0.19 | 0.22 | 0.002 |
1 | 25 | LowE3/clear | HM77 | Argon - 90% | 1/4 | 6 | 0.19 | 1.08 |
0.22 | 0.26 | 0.18 | 0.50 | 0.17 | 0.22 | 0.001 |
1 | 25 | Clear/clear | SC75 | Krypton - 90% | 1/4 | 6 | 0.17 | 0.99 |
0.35 | 0.40 | 0.28 | 0.62 | 0.21 | 0.19 | 0.005 |
1 | 25 | LowE2/clear | HM88 | Krypton - 90% | 1/4 | 6 | 0.14 | 0.78 |
0.35 | 0.40 | 0.29 | 0.62 | 0.13 | 0.15 | 0.003 |
1 | 25 | LowE3/clear | HM88 | Krypton - 90% | 1/4 | 6 | 0.13 | 0.76 |
0.24 | 0.28 | 0.20 | 0.55 | 0.13 | 0.15 | 0.001 |
1 | 25 | LowE2/clear | HM77 | Krypton - 90% | 1/4 | 6 | 0.13 | 0.73 |
0.30 | 0.35 | 0.25 | 0.55 | 0.19 | 0.22 | 0.002 |
1 | 25 | LowE3/clear | HM77 | Krypton - 90% | 1/4 | 6 | 0.13 | 0.71 |
0.22 | 0.25 | 0.18 | 0.50 | 0.17 | 0.22 | 0.001 |
1.75 | 44 | LowE2/clear | HM88 x 2 | Argon - 90% | 1/4 | 6 | 0.10 | 0.58 |
0.31 | 0.36 | 0.24 | 0.54 | 0.15 | 0.18 | 0.000 |
1.75 | 44 | LowE3/clear | HM88 x 2 | Argon - 90% | 1/4 | 6 | 0.10 | 0.58 |
0.22 | 0.25 | 0.18 | 0.49 | 0.15 | 0.18 | 0.000 |
1.75 | 44 | LowE2/clear | HM77 x 2 | Argon - 90% | 1/4 | 6 | 0.10 | 0.54 |
0.25 | 0.28 | 0.19 | 0.45 | 0.24 | 0.28 | 0.000 |
1.75 | 44 | LowE3/clear | HM77 x 2 | Argon - 90% | 1/4 | 6 | 0.09 | 0.53 |
0.18 | 0.21 | 0.14 | 0.40 | 0.21 | 0.28 | 0.000 |
1.75 | 44 | Clear/clear | SC75 x 2 | Argon - 90% | 1/4 | 6 | 0.11 | 0.65 |
0.27 | 0.31 | 0.20 | 0.48 | 0.24 | 0.21 | 0.000 |
1.75 | 44 | LowE2/clear | HM88 x 2 | Krypton - 90% | 1/4 | 6 | 0.08 | 0.45 |
0.31 | 0.36 | 0.24 | 0.54 | 0.15 | 0.18 | 0.000 |
1.75 | 44 | LowE3/clear | HM88 x 2 | Krypton - 90% | 1/4 | 6 | 0.08 | 0.44 |
0.22 | 0.25 | 0.18 | 0.49 | 0.15 | 0.18 | 0.000 |
1.75 | 44 | LowE2/clear | HM77 x 2 | Krypton - 90% | 1/4 | 6 | 0.07 | 0.40 |
0.24 | 0.28 | 0.19 | 0.45 | 0.24 | 0.28 | 0.000 |
1.75 | 44 | LowE3/clear | HM77 x 2 | Krypton - 90% | 1/4 | 6 | 0.07 | 0.39 |
0.18 | 0.20 | 0.14 | 0.40 | 0.21 | 0.28 | 0.000 |
1.75 | 44 | Clear/clear | SC75 x 2 | Krypton - 90% | 1/4 | 6 | 0.09 | 0.51 |
0.26 | 0.30 | 0.20 | 0.48 | 0.24 | 0.21 | 0.000 |
LE1 = single-silver Low-E; LE2 = double-silver Low-E; LE3 = triple-silver Low-E