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 product in our range—almost as transparent as single glazing, yet with an impressive U‑value of 0.50. Ideal for anyone looking to maximize energy savings while enjoying extra natural daylight and free solar heat
- Top insulation (U=0.50)
- Fits in the existing frames
- Extra clear vacuum glass
- 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 a superior insulation value of 0.40 (U).
- Maximum insulation (U=0.40)
- Color-neutral vacuum glass
- Natural light incidence (LTA=78%)
- Fits in the existing frames
- U-value tested by IFT Rosenheim (2025)
BENGglas Double Coated
BENGglas Double Coated keeps the heat inside with the high insulation value of 0.40 (U). At the same time, a smart solar control coating ensures that the sun's heat stays outside. This way, you always enjoy a cool and comfortable home — and an energy bill that remains low, even on the hottest and coldest days.
- Solar control glass (G=0.39)
- Maximum insulation (U=0.40)
- Fits in the existing frames
- U-value tested by IFT Rosenheim (2025)
BENGglas Triple Coated
BENGglas Triple Coated offers maximum sun protection and the best insulation value in the world: U=0.35! For those who want maximum energy efficiency and sun protection in commercial construction.
- The best insulation value worldwide (U=0.35)
- Highly sun-shielding glass (G=0.33)
- Fits in the existing frames
- U-value tested by IFT Rosenheim (2025)
BENGglas Monu
BENGglas Monu combines extra clear glass with the insulation power of vacuum glass (U=0.50). Thanks to the small thickness of only 8.3 mm and the subtly wavy surface, it is the solution for monuments where the original frames must be preserved.
- Top insulation (U=0.50)
- Extra clear vacuum glass
- Extra light and solar warmth (LTA=83, G=0.68)
- Fits in the existing frames
- The best choice for monumental renovations
- U-value tested by IFT Rosenheim (2025)
BENGglas Monu Restover
BENGglas Monu Restover combines monument glass (Restover) with the insulating power of vacuum glass (U=0.50). The characteristic strong curvature in monument glass retains the authentic appearance that is so typical of historic buildings. For the first time, there is a glass solution that preserves heritage sustainably.
- Top insulation (U=0.50)
- Extra clear vacuum glass
- For extra daylight and solar warmth (LTA=83%, G=0.68)
- Laminated glass: 13.06 mm
- Monument glass: strongly wavy 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 the extremely low U-value of 0.50 – you also generate your own energy! Thanks to the integrated solar cells, this glass is ideal for facades and roof glazing in sunny locations.
- Top insulation (U=0.50)
- Generating energy (Up to 140 Wp/m²)
- No degradation of the U-value with horizontal placement
- Lightweight and slim (> 14 mm)
- U-value tested by IFT Rosenheim (2025)
BENGglas Solar Control
BENGglas Solar Control offers the best sun protection within the BENGglas range – 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 insulation (U=0.50)
- Maximum sun protection (G=0.29)
- Fits in the existing frames
- U-value tested by TÜV Rheinland (2025)
Frequently asked questions
How do I request a vacuum glass quote?
At BENGglas, we understand that you don't want to spend a long time getting an honest price comparison.
By filling out our quote form , you will immediately receive three quotes from three authorized dealers in your area. These quotes include both delivery and installation of the vacuum glass.
Would you still prefer to decide yourself from whom you get a quote? That's easy, too.
Useour Dealer Finder byentering your zip code. You will then immediately get an overview of BENG glass dealers in your area, including their contact details and their own page with a quotation form. If desired, additional work, such as painting, can also be included. In this way, our dealers always offer a complete total solution.
All BENG glass dealers have sample windows, so you can view the glass and make an informed choice. You are 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 BENGglas at info@bengproducts.nl.
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 keeps heat in in the winter - and out in the summer. So you save on your energy bill and increase your living comfort.
The U-value is influenced by many factors, such as:
- The coating on the glass
- The filling between the glass layers (e.g. air, gas or vacuum)
- The cavity width - i.e. the space between the glass layers
How well does BENG glass score compared to other types of glass?
Here is an overview of the average U-values per type of glass:
- Single-glazing: 5.8 (insulation? Barely.).
- Double glazing (Thermopane): 2.8
- HR++ glass: 1,10
- HR++ / Triple glass: 0,70
- Other vacuum glass: between 0.45 and 0.70
- BENG glass: from 0.35 to 0.50
In short: BENG glass has by far the best insulation value of all.
So you save extra 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
