BENGglas provides ultra‑slim vacuum‑glass panels that achieve world‑leading insulation (U‑values as low as 0.35 W/m²K) while fitting into existing window frames, eliminating the need for costly frame replacements. Its patented titanium spacer and flexible edge seal deliver superior strength, minimal thermal bridging, and a service life of up to 50 years, with variants for clear, coated, solar‑control, heritage, and fire‑rated applications.
Funding
Funding not disclosed
Founders
Product
Problem
Conventional insulating glass units are thick, heavy, and often require replacement of existing window frames, leading to high material costs, extensive renovations, and limited energy performance, especially in historic or space‑constrained buildings.
Solution
BENGglas offers vacuum‑glass panels that achieve a world‑leading U‑value of 0.35 W/m²K, up to three times better insulation than HR++ and twice as good as triple glass, while maintaining a total thickness as low as 6.7 mm. The patented titanium spacer technology and flexible edge seal provide superior strength, minimal thermal bridging, and long‑term performance for up to 50 years. Because the panels are ultra‑slim, they can be installed in existing frames, preserving architectural heritage and avoiding costly frame replacements. The product line includes clear, coated, hybrid, solar‑control, monument, and fire‑rated variants, allowing designers to balance daylight, solar gain, acoustic comfort, and safety requirements within a single glazing solution.
Target Audience
Primary customers are architects, building developers, and renovation contractors who need high‑performance, space‑saving glazing for new construction, energy‑retrofit projects, and heritage building restorations, as well as facility managers of commercial and institutional buildings seeking long‑term energy and acoustic benefits.
Features
- Vacuum‑filled cavity with 0.3 mm gap eliminates conductive and convective heat transfer, delivering U‑values from 0.35 to 0.50 W/m²K
- Patented titanium spacers reduce thermal bridging by up to 70 % and enable up to 7 × fewer spacers, improving visual clarity and structural integrity
- Flexible edge sealing prevents condensation and maintains performance at any installation angle
- Standard compliance with EN 674, EN 3569 (letselveilig), EN 2608 (doorvalveilig), and BCRG certification; test reports from IFT Rosenheim and TÜV Rheinland (2025)
- Modular product portfolio (Extra Clear, Single/Double/Triple Coated, Hybrid, Solar Control, Monu, Monu Restover, Sun, PyroVac®) covering daylight, solar control, acoustic, fire‑resistance, and historic‑glass aesthetics
- Large format availability up to 2 450 × 4 150 mm, suitable for façades, skylights, and large glazing areas
- 20‑year warranty and expected service life of 50 years, reducing replacement cycles and lifecycle CO₂ emissions