Have you ever experienced this?
You specifically chose “soundproof insulated glazing” during a window retrofit project, only to find that you could still clearly hear mahjong games downstairs and screeching brakes on the street. When you complained, vendors said, “Our glass meets the regulatory standard.”
This is not your fault. You were misled by a long-standing misconception.
- Most “Soundproof” Glass Only Reduces Noises Slightly
Most sound-insulating glass on the market falls into two categories:
Ordinary insulated glass:
A layer of air or inert gas sits between two panes. Air carries sound well, so sound waves pass through the first pane, the gas, and the second pane with limited attenuation. Measured sound insulation is typically around 25–30 dB.
Laminated glass:
A PVB interlayer provides some reduction in mid- and high-frequency noise but offers little protection against low-frequency noise such as traffic and subway vibration.
True sound insulation requires removing the medium that carries sound.
That is the principle behind SuperVIG® vacuum glass: replacing the air between the panes with a vacuum.
Sound cannot travel through a vacuum.
- Vacuum-Glass Sound-Insulation
Measured sound-insulation data for SuperVIG® vacuum glass:
| Glass Type | Weighted Sound Reduction Index (Rw) |
| Ordinary single-pane glass | Approx. 25 dB |
| Ordinary insulating glass | Approx. 28–32 dB |
| Laminated insulating glass | Approx. 35–38 dB |
| SuperVIG® vacuum glass | ≥39 dB |
Why 39 dB Matters?
Human hearing perceives loudness logarithmically. A 10 dB increase is perceived as roughly twice as loud. The improvement from 32 to 39 dB is therefore much greater than the numbers alone suggest.
Simply put: with SuperVIG®, you may no longer hear the mahjong games downstairs.
- Noise Is More Than Annoying—It Harms Your Health
Research by the World Health Organization shows:
Long-term exposure to noise above 55 dB significantly increases the risk of cardiovascular disease.
Nighttime noise above 40 dB can disrupt sleep quality even if it does not wake you up.
Noise is the second-largest environmental risk factor for human health after air pollution.
You may think you are asleep, but your body remains under stress.
SuperVIG® vacuum glass does more than create a quieter home. It also helps protect your health.
City life brings convenience—but also noise.
You cannot control subways, traffic, construction, or neighbors. But you can control whether their noise enters your home.
A window fitted with SuperVIG® creates a personal acoustic boundary in the city.
Inside that boundary is your quiet.
SuperVIG®
Where Vacuum Insulated Glazing Begins, Noise Ends.
