No degradation of U-value
with angle of inclination

BENGglas SUN always maintains a U-value of 0.50—even when used as roof glazing, where double glazing loses up to 60% and triple glazing loses up to 40% of its insulation performance.

50-year lifespan
& up to a 20-year warranty

Up to twice as long as traditional insulating glass.

Standard injury-resistant
EN 3569

Five times stronger than untempered vacuum glazing with a very low risk of thermal breakage.
Except for BENGglas with a thickness of 6.7 mm. This is semi-tempered and therefore not shatter-resistant.

Free of
heavy metals

Safe and environmentally friendly vacuum glazing solutions free of harmful substances. Supported by accompanying RoHS reports.

BENGglas Sun

Monostripe

With the Monostripe version, you not only save significantly on your energy costs thanks to its high insulation value of U=0.50, but you also generate your own energy—up to 70 watts per square meter!

The cut crystalline cells create a sleek, smooth, and semi-transparent surface with 50% light transmittance.

With a slim profile starting at 14 mm, BENGglas Sun Monostripe is perfect for atriums or as a stylish feature in any building.

Please note: available for order only in quantities of 50 m² or more in repeating sizes.

BEN Gglas Sun Monostripe overview 2
BENGglas Sun

Classic

With the Classic version, you kill two birds with one stone: you enjoy top-notch insulation with a U-value of 0.50 while simultaneously generating energy. With full cell coverage, this can reach up to 140 watts per square meter.

The classic monocrystalline cells create a semi-transparent panel, allowing the amount of light to be precisely tailored to your project.

With a slim profile starting at 14 mm, BENGglas SUN Classic is ideal for facades, canopies, and other applications where high efficiency and a sleek appearance are required.

Please note: available for order only in quantities of 50 m² or more in standard sizes.

BEN Gglas SUN render 16 hi Rez Model 2
BENGproducts

BENGsolar and BENGglas: Working Together Toward Energy-Positive Construction

BENGsolar is part of BENGproducts B.V. and the leading partner for building-integrated solar energy in the commercial market. From transparent and colored solar panels to flexible solutions: everything is custom-designed and supported—from concept to completion.

Together with BENGglas, BENGsolar developed the world’s most insulating solar panel: BENGglas SUN. This way, you not only save on the energy you consume but also prevent energy you don’t need to use.

EPO main
FAQ

Frequently asked questions

The huge CO₂ gain from mass switching to BENG glass: this is what it really delivers!

If all of the Netherlands switches to BENG glass, we realize structural CO₂ savings of as much as 4.1 megatons per year - that's equivalent to 170,000 car trips from Amsterdam to Paris! In production alone, BENG glass saves over 24,000 tons of CO₂ annually . For an average home, BENG glass means a saving of 1,800 kg of CO₂ per year, which over 50 years can increase to as much as 90,000 kg of CO₂ per home. BENG glass thus contributes directly to achieving our climate goals: it can achieve more than 8% of the CO₂ reduction in the built environment by 2030 and help the Netherlands become climate neutral by 2050. It's not just any glass, it's a revolution in sustainable building.

What is the price of BENGglas?

The price of vacuum glazing is slightly higher than that of traditional insulating glass, but that’s not the whole story. Because with BENGglas, you also save on:

  • new window frames (which are often necessary with triple glazing)
  • replacement costs, thanks to a lifespan that’s twice as long
  • additional hardware
  • your energy bill, thanks to a stable U-value that lasts up to 50 years
  • and your energy rating—which results in a higher home value. As a result, the effective payback period is often 0 years.

In addition, there are attractive subsidies for vacuum glazing, which in the Netherlands can amount to as much as €46 per m².

Our recommended retail price?
As a guideline, you can expect a price starting at €295 per m² (excl. VAT, shipping, and installation, based on 1 m²).
The final cost depends on your specific situation: window frame type, choice of glass (e.g., laminated or solar-control), and any additional requests such as painting or finishing touches. For this reason, it’s difficult to provide an exact price. Would you like to request a quote that includes installation? Fill out our quote form and receive 3 quotes from 3 certified dealers in your area.

This way, you can immediately compare prices fairly!

Want to know exactly how much your project will cost?
Then fill out the quote form . You’ll receive a no-obligation proposal from three certified BENGglas dealers in your area. That way, you’ll know exactly where you stand— with no surprises later on.

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 glass thickness do I need for my vacuum glazing project?

BENGglas comes in various thicknesses, so we always have the perfect match for your windows. This prevents warping, bending, and other issues.
The larger the glass, the thicker the assembly. The glass thickness is determined based on the surface area of a single pane:

  • 6.7 to 8.3 mm: up to 3 m²
  • 10.3 mm: 3 to 4 m²
  • 12.3 mm: 4 to 4.8 m²
  • 16.3 mm: 4.8 m² and up

Is BENGglas too thin for your window frames? No problem!
BENGglas is ultra-thin, but if your window frames are slightly wider than 16.3 mm, we can also increase the thickness of the glass(BENGglas Hybrid) or laminate it. That way, it fits perfectly even in wider profiles, without you having to replace your window frames.

Not sure which thickness is best for your windows? No worries—we’re happy to help with personalized advice tailored to your specific situation!

Is BENG glass soundproof?

BENG glass is not only very strong in insulation, but also effective in blocking sound. We measure this with the RW (C; Ctr) values - the higher the number, the quieter your home becomes. In general, the better the insulation value, the better the soundproofing. So by using the best insulation value, BENG glass also directly provides the best sound insulation!

Here are the figures at a glance:

  • HR++ glass has an overall sound insulation of about 31 dB, with a range of 30 to 27 dB at low and high frequencies.
  • HR++ glass or triple glass scores slightly better with an overall value of 33 dB, but at low and high frequencies the sound level can range from 31 to 27 dB.
  • BENG glass goes one step further with an overall sound insulation of 36 dB and also performs very consistently between 34 and 33 dB at low and high frequencies.

What does that mean for you? BENG glass keeps sound out better, especially at those annoying low tones that easily bother you.
So you not only enjoy lower energy bills, but also a much quieter and more comfortable home.

Clarity for the right choice

Explore our range

Use the product finder
Bengglas vacuumglas vacuümglas vacuum glazing monumentenglas monu heritage renovation restauration extra clear

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)
Learn more
BEN Gglas Single Coated overview

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)
Learn more
BEN Gglas Double Coated overview

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)
Learn more
BEN Gglas Triple Coated overview

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)
Learn more
BEN Gglas hybrid vacuumglas hybride gelaagd opgedikt gedubbeld glas 3

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
Learn more
Bengglas vacuumglas vacuümglas vacuum glazing monumentenglas monu heritage renovation restauration

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)
Learn more
Bengglas isolatieglas dubbelglas vacuumglas bengglas mono monumentenglas heritage glass vacuum glazing renovation restauration restauratie renovatie restover

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)
Learn more
Bengglas vacuumglas glass glas vacuum project dakbeglazing transparante zonnepanelen classic sun

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
Learn more
BEN Gglas Solar Control Overview

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)
Learn more
BEN Gglas gelaagd Extra Clear overview

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
Learn more