Superior thermal insulation
1. Exceptional Insulation with Ultra-Low Thermal Conductivity:
SuperVIG vacuum glass features a highly evacuated inner cavity that effectively blocks heat transfer between the interior and exterior. With a U-value as low as 0.42 (W/m²·K), its insulation performance rivals that of a 770mm thick brick wall.
Glass Type | Thickness (mm) | U-value (W/m²·K) |
Clear float glass | 4 | 5.8 |
Insulating glass | 20 | 2.5-2.9 |
Low-E insulating glass | 20 | 1.5-1.8 |
Triple-pane double-cavity insulating glass | 26 | 0.7-1.8 |
SuperVIG vacuum glass | 6.5 | 0.4-0.8 |
Brick wall | 770 | 0.4-0.8 |
PU foam | 50 | 0.4-0.8 |
2. Transparent, Ultra-Thin “Wall” Structure:
The lightweight structure of SuperVIG vacuum glass offers superior insulation, with a U-value significantly lower than clear float glass, insulating glass, and Low-E insulating glass. It can be considered a transparent, ultra-thin “wall.”
For example, while triple-pane double-cavity Low-E insulating glass has a good U-value, it is more than twice as thick as SuperVIG vacuum glass.
Comparison of Energy Consumption per Square Meter for Insulating Glass and Vacuum Glass:
Type | Outdoor Temperature | Indoor Temperature | Temperature Difference (°C) | U-value (W/m²·K) | Daily Energy Consumption (W) | Monthly Energy Consumption (30 days) (W) |
Insulating glass | 35°C | 27°C | 8 | 2.5 | 480 | 14,400 |
Vacuum glass | 35°C | 27°C | 8 | 0.6 | 115.2 | 3,456 |
3. Energy Savings of Up to 76%:
Compared to insulating glass, SuperVIG vacuum glass demonstrates significantly lower daily and monthly energy consumption under the same temperature difference, achieving energy savings of up to 76%.
