BENGglas offers the world’s best insulating glass (U=0.35) and contributes to a more sustainable future, pane by pane.
Insulates up to 3 times better than HR++ double glazing and up to 2 times better than HR+++ triple glazing
Uses 30% less material than HR+++ (triple glazing)
Fits into existing window frames
Ultra-lightweight: heavy and expensive hinges and fittings are no longer required
Expected lifespan of up to 50 years
Tested by IFT Rosenheim (2025)
If this glass were adopted worldwide, the resulting energy savings would be immense — so significant that climate targets would suddenly become achievable, simply by choosing the right glass.
BENGglas and BENGsolar are part of BENGproducts B.V.









