Do the decision aid
Answer a few short questions and find out right away which type of BENG glass is best for you!
Find a certified installer
BENGglas has an extensive network of over 150 certified installers across Europe, specializing in vacuum glass installations. This way, you’re always assured of a professional close to home! Want to get the best deal easily? Fill out our quote form and receive three competitive offers from the three nearest BENGglas dealers in your area!
BENGglas Extra Clear
BENGglas Extra Clear is the clearest vacuum glazing in the product line. It’s almost as clear as single-pane glass, but with an insulation value of U=0.50. Perfect for those who want to maximize savings while enjoying extra natural light and free solar heat.
- Top-Notch Insulation (U=0.50)
- Fits into existing window frames
- Extra-clear vacuum glazing
- Extra light and solar heat (LTA=83, G=0.68)
- U-value tested by IFT Rosenheim (2025)
BENGglas Single Coated
BENGglas Single Coated combines the color-neutral appearance of double glazing with an insulation value of up to 0.40 (U). With a glass thickness of just 6.7 mm, the U-value is 0.50. Perfect for slim window frames and historic buildings.
- Maximum insulation (U=0.40–0.50)
- Fits into existing window frames
- Ultra-slim: starting at 6.7 mm (U=0.50)
- Color-neutral vacuum glazing
- Natural light transmission (LTA=78%)
- U-value tested by IFT Rosenheim (2025)
BENGglas Double Coated
With a high insulation value of 0.40 (U),BENGglas Double Coated keeps the heat inside. At the same time, a smart sun-control coating keeps the sun’s heat out. This way, you can always enjoy a cool and comfortable home—and keep your energy bills low, even on the hottest and coldest days.
- Solar control glass (G=0.39)
- Maximum insulation (U=0.40)
- Fits into existing window frames
- U-value tested by IFT Rosenheim (2025)
BENGglas Triple Coated
BENGglas Triple Coated offers maximum sun protection and the world’s best insulation value: U=0.35! For those seeking maximum energy efficiency and sun protection in commercial construction.
- The best insulation value worldwide (U=0.35)
- Highly solar control glass (G=0.33)
- Fits into existing window frames
- U-value tested by IFT Rosenheim (2025)
BENGglas Hybrid
BENGglas Hybrid insulates twice as well as triple-pane glass and is thinner than standard double-pane glass. Or rather, you decide on the glass configuration and thickness yourself. You keep your existing window frames and benefit from additional edge insulation: more heat, less heat loss, and no need for heavy, expensive triple-pane glass. Choose the thickness and type of BENGglas yourself, with the best insulation value available worldwide: starting at U=0.35.
- Maximum insulation (U=0.35–0.50)
- Fits into existing window frames with wider profiles
- Improves edge insulation
- Fully customizable to your specifications
- Includes thermally broken warm-edge spacers
BENGglas Monu
BENGglas Monu combines extra-clear glass with the insulating power of vacuum glazing (U=0.50). Thanks to its slim profile of just 8.3 mm and its subtly undulating surface, it is the ideal solution for historic buildings where the original window frames must be preserved.
- Top-tier insulation (U=0.50)
- Extra-clear vacuum glazing
- Extra light and solar heat (LTA=83, G=0.68)
- Fits into existing window frames
- The best choice for historic renovations
- U-value tested by IFT Rosenheim (2025)
BENGglas Monu Restover
BENGglas Monu Restover combines heritage glass (Restover) with the insulating properties of vacuum glazing (U=0.50). The distinctive strong curvature of heritage glass preserves the authentic appearance so characteristic of historic buildings. For the first time, there is a glass solution that helps preserve heritage.
- Top-tier insulation (U=0.50)
- Extra-clear vacuum glazing
- For extra daylight and solar heat (LTA=83%, G=0.68)
- Laminated glass: 12 mm
- Heritage glass: strongly curved surface (Restover glass)
- U-value tested by IFT Rosenheim (2025)
BENGglas Sun
With BENGglas SUN, you not only save on your energy costs thanks to its extremely low U-value of 0.50—you also generate your own energy! Thanks to its integrated solar cells, this glass is ideal for facades and roof glazing in sunny locations.
- Top insulation (U=0.50)
- Energy generation (up to 140 Wp/m²)
- No degradation of the U-value when installed horizontally
- Lightweight and slim (> 14 mm)
- U-value tested by IFT Rosenheim (2025)
- Project-based construction: available for order starting at 50 m²
BENGglas Solar Control
BENGglas Solar Control offers the best solar control in the BENGglas product line—with an impressively low G-value of 0.29. Ideal for commercial buildings where you want to keep solar heat out and achieve maximum energy efficiency.
- Top-tier insulation (U=0.50)
- Maximum solar control (G=0.29)
- Fits into existing window frames
- U-value tested by TÜV Rheinland (2025)
BENGglas PyroVac® EW 30-1
BENGglas PyroVac® EW30-1 is fire-resistant vacuum glazing with a U-value of 0.40 and a total glass thickness of just 15 mm. Thanks to its EW30-1 classification, the glass provides 30 minutes of protection against fire and smoke, while significantly reducing heat radiation on the non-fire side.
- Maximum insulation (U=0.40)
- Double-sided shatter-resistant (EN 3569) and fall-through-resistant (EN 2608)
- Fire-resistant: EW30, fire-rated on one side, UV-stable, impact class: 1B1 (EN 12600)
- Glass thickness: 15 mm
- Tested and certified
- Fully customizable
Frequently asked questions
How do I request a quote for vacuum glazing?
At BENGglas, we understand that you don’t want to spend a lot of time getting a fair price comparison.
By filling out our quote form , you’ll immediately receive three quotes from three authorized dealers in your area. These quotes include both delivery and installation of the vacuum glazing.
Would you rather choose which dealers provide you with quotes? That’s easy, too.
Useour Dealer Finder byentering your ZIP code. You’ll immediately see a list of BENGglas dealers in your area, including their contact information and a dedicated page with a quote form. If desired, additional services, such as painting, can also be included. This way, our dealers always offer a complete, all-in-one solution.
All BENGglas dealers have sample panes available, so you can view the glass and make an informed choice. You’re also welcome to visit our showroom by appointment to experience the possibilities in person.
Is there no dealer near you? Then ask your local glazier to contact us directly.
What is the U-value, and why is it important?
The U-value indicates how well glass insulates. Simply put: the lower the U-value, the better the glass retains heat in the winter—and keeps it out in the summer. This helps you save on your energy bill and increases your comfort at home.
The U-value is influenced by a variety of factors, such as:
- The coating on the glass
- The filling between the glass panes (e.g., air, gas, or a vacuum)
- The cavity width —that is, the space between the glass panes
How does BENGglas compare to other types of glass?
Here is an overview of the average U-values by glass type:
- Single-pane glass: 5.8 (Insulation? Hardly.)
- Double-pane glass (Thermopane): 2.8
- Double glazing: 1.10
- Triple glazing: 0.70
- Other types of vacuum glass: between 0.45 and 0.70
- BENGglas: from 0.35 to 0.50
In short: BENGglas has by far the best insulation value of them all.
This way, you’ll save even more on your energy bill!
*U-values measured according to standards EN 674:2011 and ISO 19916-1:2018 by ift Rosenheim (2025).
What is the warranty period of BENG glass?
At BENG glass, we think ahead. With an expected lifespan of no less than 50 years, we give you up to a 20-year warranty - that's twice as long as HR++ or HR+++ glass.
What is covered by the warranty?
- 20-year warranty on our basic range, without additional applications (layers/ hybrid etc.)
- Laminated variants: 10 years
- Fire-resistant versions: 5 years
- BENG glass Monu Restover: 5 years
Our warranty applies to the redelivery of your BENG glass window(s) free of charge if it loses its insulating effect within the warranty period. That way you can be sure you'll be fine for years to come.
Want to know more?
View the full warranty terms and conditions in our knowledge base.
Does BENG glass have a BCRG statement?
Yes, all types of BENG glass have an official BCRG declaration. This certification stands for independent quality and safety control and is an important proof that BENG glass meets stringent requirements for durability, safety and performance.
The BCRG statement gives you extra confidence in the reliability of BENG glass, in addition to other certificates and reports such as U-value reports, toughness reports, sound insulation reports.
Want to know more about the BCRG statement and other certificates of BENG glass? Then consult our knowledge base for comprehensive information!
References
Are you curious about where vacuum glass is already being used? Check out our references and discover how BENG glass is being used in all kinds of projects - from listed buildings and protected heritage sites to sustainable new construction, canal houses and sleek offices.
In this way, we are helping window by window to create energy-efficient buildings with fewer CO₂ emissions.
Monumentaal pand in Den Haag krijgt energie-boost
BENGglas in ‘The Art of Living’ with the sustainability of a 100-year-old building
Sustainability of modern office building
