Vacuum Insulated Glass: The Next Leap in Window Thermal Performance
By Total Care Windows Sun Nov 23 20257 minutes
Understanding Vacuum Insulated Glass (VIG) Technology
Vacuum insulated glass, or VIG, represents a transformative advancement in window technology. Unlike traditional double or triple glazing, VIG utilizes a hermetically sealed vacuum layer between two panes of glass. This vacuum acts as a near-perfect insulator, significantly reducing heat transfer and improving energy efficiency beyond conventional methods.Key Benefits of Vacuum Insulated Glass for Homeowners
- Exceptional thermal insulation that rivals or surpasses triple glazing in a much slimmer profile
- Reduced window weight compared to traditional triple-glazed units, easing installation and minimizing structural load
- Superior condensation resistance, ensuring clear views even in extreme climates
- Enhanced acoustic insulation due to the vacuum barrier, contributing to a quieter indoor environment
- Extended lifespan with minimal risk of gas leakage or deterioration over time
How VIG Compares to Double and Triple Glazing
While double and triple glazed windows have been the standard for decades, VIG offers a step-change in performance. Its ultra-thin profile enables retrofitting into existing window frames, making it an attractive option for historic renovations and modern builds alike.“The best window solutions combine cutting-edge performance with seamless integration into a building’s design and heritage.”
| Feature | Double Glazing | Triple Glazing | Vacuum Insulated Glass |
| Typical Thickness | 24-28mm | 36-44mm | 6-12mm |
| U-Value (Lower is Better) | 1.2-1.6 W/m²K | 0.7-1.0 W/m²K | 0.4-0.7 W/m²K |
| Weight | Standard | Heavy | Light |
| Retrofitting | Challenging | Rarely Possible | Often Possible |
Ideal Applications for Vacuum Insulated Glass
VIG is especially suited for projects where space, weight, and performance are equally critical. Homeowners seeking to upgrade thermal performance without altering the character of their property, or commercial buildings looking for top-tier energy efficiency, can benefit immensely from this technology.- Historic building retrofits that require slim profiles
- Passive house and net-zero energy projects
- High-rise buildings where weight reduction is vital
- Luxury residential renovations demanding superior comfort
- Display windows and facades with minimal frame depths