The best insulation glass in the world! U=0.35
At BENGglas, everything revolves around what truly matters: a lower energy bill and a sustainable future.
While traditional insulating glass, such as double glazing (HR++) or triple glazing (HR+++), has a U-value between 0.70 and 1.10, BENGglas offers an exceptional insulation value of only 0.35 – a true breakthrough in insulating glass. This directly provides several advantages:
- A better energy label and a higher property value
- Structurally lower energy costs, for decades
- No insulation loss with roof glazing – unlike HR++ or HR+++ insulating glass
- No need for frame replacement – fits in existing frames
- Lightweight insulating glass – lower costs for fittings and installation
Vacuum glass vs. Insulating glass: What is the difference?
Vacuum glass and insulated glass are both excellent choices for energy efficiency, but there are important differences in performance and benefits.
Insulated glass consists of two (double glazing/ HR++ glass) or three glass panes (triple glazing or HR+++ glass) with a gas-filled cavity. It is good at reducing heat loss but has a higher U-value (around 0.70-1.10), which means more heat escapes than with vacuum glass.
Vacuum glass uses a high vacuum between two glass panes, resulting in an exceptionally low U-value of only 0.35. This makes vacuum glass a much better insulator, leading to lower energy costs and a more comfortable indoor climate. Moreover, vacuum glass is lighter, more durable (up to 50 years), and offers better sound insulation (up to 36 dB).
In short, vacuum glass offers superior insulation, longer lifespan, and better sound insulation than traditional insulated glass. Although the initial costs may be higher, vacuum glass provides significant savings and benefits in the long term.
The unique technology behind vacuum glass
Vacuum glass is an advanced technology that provides exceptional insulation. It consists of two glass panes separated by small spacers, with a high vacuum space between the panes. This ensures that heat loss through conduction and convection is minimized. Additionally, a heat-reflective coating is added, preventing heat radiation from penetrating. Although it may sound simple, there is a lot of technology behind this construction. Each glass pane contains as many as 452 patents, translating into impressive performance.
The spacers in vacuum glass ensure that the pressure on the glass is evenly distributed during the vacuum process. At BENGglas, the number of spacers is minimal, and they are made in non-reflective anthracite, making them almost invisible, even in bright sunlight or low sun.
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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!
From double glazing to revolutionary vacuum technology
Insulating glass is the smart successor to single glass. It consists of two or three layers of glass, with air or gas in between – as with HR++ glass or HR+++ glass. Often, there is also a special heat-resistant coating (low-e) for extra insulating properties.
The latest innovation? Vacuum glass!
And BENGglas is leading the way in this. With an exclusive LandVac range, which has been applied internationally since 2016, the product has more than proven its value.
What makes the difference?
Instead of gas, BENGglas uses an ultra-thin vacuum layer between two glass plates. This almost completely prevents heat loss through conduction and convection. Add a high-performance low-e coating to that, and heat radiation has no chance either.
It sounds simple, but there is serious technology behind it. Each glass plate contains about 429 patents – and this is reflected in the performance.
BENGglas achieves a U-value of just 0.35. For comparison: HR++ glass remains at 1.1 and HR+++ glass at 0.70. And all this while BENGglas is thin and light enough to fit into existing frames.
What are the benefits of insulated glass – and what makes BENGglas unique?
Insulating glass is a popular choice for improving energy efficiency in homes and offices. It consists of two glass panes with a gas-filled cavity between them, allowing heat to be retained better and keeping cold out. This makes insulating glass much more efficient than single glass and contributes to significantly lower energy costs. By using insulating glass, you can reduce your energy consumption while simultaneously improving comfort at home or in the office.
However, BENGglas offers even more advantages than traditional insulating glass. BENGglas uses innovative vacuum technology, resulting in an exceptionally low U-value starting from 0.35. This is significantly better than the performance of standard insulating glass, such as HR++ glass (U-value: 1.10) or HR+++ glass (U-value: 0.70). The vacuum virtually eliminates heat loss through conduction and convection, while an advanced low-e coating further increases efficiency.
BENGglas not only provides better insulation for heat but also for sound. It offers up to 36 dB sound reduction, which is a much higher performance than standard HR glass. Additionally, BENGglas has an impressive lifespan of up to 50 years, which is twice as long as the lifespan of HR++ or HR+++ glass. BENGglas is also slimmer and lighter, making it suitable for existing frames.
By switching to BENGglas, which is better than standard insulating glass, we can not only improve energy efficiency but also drastically reduce CO₂ emissions. This makes BENGglas a sustainable choice for both new construction and renovation projects and a smart investment in the future of energy-efficient building.
What are the applications of insulating glass – and where does BENGglas come into its own?
Smarter building starts with revolutionary insulation glass. Whether it's renovation, new construction, or utility construction: BENGglas makes the difference. Thanks to the ultra-thin vacuum technology, an impressively low U-value of 0.35, and the light, sleek profile, BENGglas is widely applicable:
- Monumental renovations
BENGglas is so thin and light that it fits effortlessly into existing frames – where HR++ or HR+++ glass is often too thick or too heavy. This way, you maintain the authentic appearance that is so characteristic of monumental buildings.
With BENGglas Monu or BENGglas Monu Restover, you also choose a special monument version, where even the characteristic waviness of old glass is preserved. This way, the authentic appearance of the historic glass remains intact, but the building gains the insulation value of the future. Historical buildings have never been so energy-efficient.
New construction projects
Glass makes up a large part of the building envelope – that's where you can gain the most with insulation. With BENGglas, you save up to three times more energy than with HR++ glass and you meet the mandatory BENG standard faster, without heavy heat pumps or other costly extra measures.The glass is lightweight, saving on construction costs and suitable for slim profiles and special facade details. Moreover, BENGglas lasts up to twice as long as HR++ glass and provides extra soundproofing up to -39 dB (or more).
On top of that, you choose a significantly lower CO₂ emission and are directly prepared for the stricter standards of the future.
- Utility buildings and offices
Buildings with a lot of glass often consume extra energy – especially in utility construction. BENGglas directly reduces that energy demand, thanks to the extremely low U-value starting from 0.35. That means: lower energy costs and a comfortable indoor climate, all year round.
Do you choose extra sun-protective coatings or soundproofing up to 39 dB? Then you create not only an energy-efficient but also a quiet and pleasant workplace.
- Future-oriented or energy-positive building
With an expected lifespan of 50 years, low environmental impact, and the best insulation value on the market, BENGglas is the choice for sustainable building. Significantly less emissions, less replacement, and years of lower energy costs.
The power of insulating glass begins with the U-value
The power of insulating glass starts with the U-value. This number indicates how much heat is lost per second per square meter of glass surface. The lower the U-value, the better the glass insulates – and the more energy (and costs) you save.
The U-value is determined by three things:
- the number of glass layers
- the filling between the glass panes (air, gas, or vacuum)
- and the quality of the heat-reflective coating (low-e)
Below is an overview of the most common types of glass and their performance:
- Single glass – U-value: 5.8
Offers hardly any insulation. No longer allowed in new construction. - Double glass / Thermopane – U-value: 2.8
Outdated technology. Only air filling, no coating. - HR glass – U-value: 1.9
Equipped with an insulating coating, but still filled with air. - HR+ glass – U-value: 1.6
Improved coating, but still without gas filling. - HR++ glass – U-value: 1.1
Standard in many homes. Has a coating and a noble gas filling such as argon or krypton. - HR+++ / Triple glass – U-value: 0.7
Consists of three glass layers with multiple coatings and gas fillings. Insulates well, but is heavy and thick (± 40 mm). - Vacuum glass / BENG glass – U-value: 0.35 – 0.50
The latest generation of insulating glass. Two thin glass panes with a vacuum in between. Insulates three times better than HR++ and twice as well as triple glass – while it simply fits into existing frames and lasts twice as long.
Conclusion:
The lower the U-value, the better the glass performs.
With BENG glass you choose maximum insulation, while it simply fits into your existing frames.
That means:
- lower CO₂ emissions
- less material usage
- lower energy costs
- no expensive frame replacement needed
What is the U-value of insulated glass in combination with window frames?
The U-value of insulated glass is important, but ultimately the entire frame system counts (Uw-value). The material of the frame (wood, plastic, or aluminum) and its thermal properties affect the final insulation value.
Below you can see what you can expect from BENG glass in different types of frames:
Wooden or plastic frames
- BENG glass Extra Clear: Uw-value of 1.2 W/m²K
- BENG glass Single, Double, or Triple Coated: Uw-value of 1.1 W/m²K
Aluminum frames (thermally broken)
- BENG glass Extra Clear: Uw-value of 1.6 W/m²K
- BENG glass Single, Double, or Triple Coated: Uw-value of 1.5 W/m²K
Aluminum frames (not thermally broken)
- BENG glass Extra Clear: Uw-value of 2.7 W/m²K
- BENG glass Single, Double, or Triple Coated: Uw-value of 2.6 W/m²K
Tip: always choose a thermally broken profile for aluminum for the best insulation. This way, you get the maximum efficiency from your BENG glass.
Note, the above Uw-values are all based on standard values. In practice, these values can be significantly lower. Therefore, always consult with your frame supplier.
Everything in one convenient overview? Download our brochure
Frequently asked questions
How do I request a quote?
Under the heading ‘Dealers’, you will find an overview of all BENGglas dealers near you. Once you have contacted a dealer, they will prepare a quote for you. This quote includes both the glass and the necessary installation. If desired, additional work, such as painting, can also be included. This way, our dealers always offer a complete total solution.
All BENGglas dealers have sample panes, so you can view the glass and make an informed choice. Additionally, you are warmly welcome by appointment in our showroom to personally experience the possibilities.
Is there no dealer near you? Then ask your local glazier to contact BENGglas via info@bengproducts.nl.
Why should I choose BENGglas?
BENGglas is not ordinary glass – it is a revolutionary solution for sustainable and future-proof building. Compared to standard insulation glass, BENGglas offers unique advantages that directly improve both your home and the climate.
- Superior insulation: with a U-value starting from 0.35 W/m²K, BENGglas is twice as effective as triple glazing (0.70) and even three times better than double glazing (1.10). This means significant energy savings and lower heating costs.
- Long lifespan: while traditional glass lasts an average of 25 years, BENGglas lasts up to 50 years. Produce once, less CO₂, and half a century of benefits!
- Sustainable and environmentally friendly: thanks to less material use (30% less glass than triple glazing), BENGglas saves thousands of tons of CO₂ annually. This way, you actively contribute to a cleaner planet.
- Light and thin: at only 8.3 mm thick, BENGglas fits in almost any existing frame and allows for lighter hardware, making construction sustainable and efficient.
- A true climate hero: if all of the Netherlands switches to BENGglas, we can save up to 4.1 megatons of CO₂ annually — that's equivalent to 170,000 car trips from Amsterdam to Paris! Moreover, the production of BENGglas alone results in 24,000 tons less CO₂ emissions per year.
- A smart investment in the future: less energy consumption, less maintenance, and a longer lifespan make BENGglas a choice that benefits you for years – for yourself and for future generations.
In short: with BENGglas you choose maximum energy efficiency, sustainability, and a smart investment in the future. Make a difference, for your home and for our planet.
Why is BENGglas a smart investment?
Because you don't just buy glass, but a future-proof solution that really saves money and energy. BENGglas has an insulation value starting from 0.35 W/m²K — that's 2x better than triple glazing (0.70) and even 3x better than double glazing (1.1). Less heat loss immediately means lower heating costs. This also means a better energy label and therefore a higher property value. The effective payback period is often 0 years.
But that's not all. BENGglas lasts up to 50 years, while standard glass typically needs to be replaced after 25 years. Invest once, and you're set for two generations. That means less maintenance, less replacement, and thus lower total costs.
The environment also benefits: if the whole of the Netherlands switches to BENGglas, we save no less than 4.1 megatons of CO₂ annually — comparable to 170,000 car trips from Amsterdam to Paris. Less CO₂ emissions and a lower energy bill: that's what we call an investment that pays for itself.
In short: with BENGglas you invest in sustainability, comfort, and financial savings. Smart, right?
Can I become a BENGglas dealer?
Great that you're interested!
We are always looking for enthusiastic professionals who are as much fans of top-quality and sustainable insulation glass as we are. But... becoming a BENGglas dealer doesn't happen just like that. Because we stand for quality, service, and craftsmanship, we consciously choose a carefully selected dealer network.
Do you also want to become part of our network?
Then send an email to info@bengproducts.nl and tell us who you are, what you do, and why you think BENGglas fits well with your company. We will then get in touch with you quickly to discuss the possibilities.
Good to know:
As a dealer, you get access to our sample panes, plenty of marketing support, technical support, and you will be included in our online dealer map so customers can easily find you.
We look forward to your message!
References
Are you curious about where vacuum glass is already being used? Check out our references and discover how BENGglas is applied in various projects – from monumental buildings and protected heritage to sustainable new constructions, canal houses, and sleek offices.
In this way, we contribute pane by pane to energy-efficient buildings with less CO₂ emissions.
BENGglas in ‘The Art of Living’ with the sustainability of a 100-year-old building
Sustainability of modern office building
Villa renovated with BENG glass
