Glazing Performance Comparison
1" Clear + Energy Select 63 (3) Clear
Outboard: 1⁄4" Clear
Gap: 1⁄2" Spacer
Inboard: 1⁄4" Energy Select 63 on Clear (#3 Surface)
1" Energy Select 40 (2) Clear + Clear
Outboard: 1⁄4" Energy Select 40 on Clear (#2 Surface)
Gap: 1⁄2" Spacer
Inboard: 1⁄4" Clear
1" Energy Select 36 (2) Clear + Clear
Outboard: 1⁄4" Energy Select 36 on Clear (#2 Surface)
Gap: 1⁄2" Spacer
Inboard: 1⁄4" Clear
1" Energy Select R42 (2) Clear + Clear
Outboard: 1⁄4" Energy Select R42 on Clear (#2 Surface)
Gap: 1⁄2" Spacer
Inboard: 1⁄4" Clear
1" Energy Select 28 (2) Clear + Clear
Outboard: 1⁄4" Energy Select 28 on Clear (#2 Surface)
Gap: 1⁄2" Spacer
Inboard: 1⁄4" Clear
1" Energy Select 25 (2) Meadow Green + Clear
Outboard: 1⁄4" Energy Select 25 Meadow Green (#2 Surface)
Gap: 1⁄2" Spacer
Inboard: 1⁄4" Clear
VLT % | UV % | TSE % | R Vis Out % |
R Vis In % |
R Out TSE % |
U-Value Winter | U-Value Summer | U-Value Euro | RHG | SHGC | SC | LSG | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1" Clear + Energy Select 63 (3) Clear | |||||||||||||
76 | 31 | 47 | 12 | 12 | 22 | 0.30 | 0.29 | 1.72 | 129 | 0.54 | 0.63 | 1.40 | |
1" Energy Select 40 (2) Clear + Clear | |||||||||||||
69 | 16 | 33 | 12 | 13 | 31 | 0.29 | 0.27 | 1.65 | 92 | 0.39 | 0.44 | 1.80 | |
1" Energy Select 36 (2) Clear + Clear | |||||||||||||
63 | 13 | 30 | 12 | 16 | 30 | 0.29 | 0.27 | 1.66 | 86 | 0.36 | 0.41 | 1.76 | |
1" Energy Select R42 (2) Clear + Clear | |||||||||||||
62 | 21 | 36 | 26 | 22 | 33 | 0.30 | 0.28 | 1.68 | 100 | 0.42 | 0.48 | 1.47 | |
1" Energy Select 28 (2) Clear + Clear | |||||||||||||
60 | 12 | 24 | 13 | 15 | 38 | 0.29 | 0.27 | 1.63 | 69 | 0.28 | 0.33 | 2.12 | |
1" Energy Select 25 (2) Meadow Green + Clear | |||||||||||||
51 | 5 | 20 | 10 | 15 | 8 | 0.29 | 0.27 | 1.66 | 67 | 0.27 | 0.32 | 1.87 |
Note: Performance data calculations in this table are based on the International Glazing Database (IGDB) Version 28.0. Learn more about IGDB.
* Some glass types in this table may not be stocked. Contact ITI Glass for availablity.
- VLT % - Visible Light Transmittance
- UV % - Ultra-Violet Transmittance
- TSE % - Total Solar Energy Transmittance
- R Vis Out % - Reflected Visible -- Exterior
- R Vis In % - Reflected Visible Light -- Interior
- R Out TSE % - Total Solar Energy Reflectance -- Exterior
- U-Value Winter, Summer - Btu/(hr x sqft x F)
- U-Value Euro - European U-Value
- RHG - Relative Heat Gain, Btu/(hr x sqft)
- SHGC - Solar Heat Gain Coefficient
- SC - Shading Coefficient
- LSG - Light to Solar Gain