Maximum insulation with extra solar heat and natural light
Are you looking for glass that allows a lot of daylight in, without adding color to your beautiful view? BENGglas is also available in extra clear variants – perfect for those who want to make the most of natural light and solar heat.
Each type of BENGglas lets in up to 15% more natural daylight than triple glazing, while insulating up to three times better than double glazing
With a G-value of up to 0.68, you also bring in extra solar heat — useful in winter and good for your energy bill.
- Extra clear or color-neutral vacuum glass
- For extra daylight and solar heat (LTA up to 83%)
- Maximum insulation (up to U=0.50)
- The best choice for monumental renovations
- Always fits in existing frames
- U-value tested by IFT Rosenheim (2025)
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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!
Solar heat gain factor
The G-value (solar heat gain factor) indicates how much solar heat passes through the glass — in other words, how much free warmth from the sun you actually feel indoors.
Good to know: no matter which G-value you choose, BENGglas always delivers excellent insulation — far better than double or triple glazing. You’ll notice the difference: your home loses less heat, maintains its temperature longer, and requires less heating. Especially in winter or in older homes, this can mean significant savings on your energy bill.
What does change? How much solar heat you allow inside.
- Higher G-value → More solar heat indoors. Perfect for bright spaces or colder facades.
- Lower G-value → More solar heat blocked. Ideal for areas with large glass surfaces, warm rooms, or strong summer sun.
You choose what suits you
BENGglas is available in various versions, each offering its own balance between natural light, heat, and solar protection.
Want extra daylight? Prefer to block more sun? Or a mix of both? You decide what’s important — and whichever option you choose:
- It fits perfectly into your existing frames.
- It’s sleek, lightweight, and highly insulating.
- It contributes to a more comfortable indoor climate.
Not sure which version is best for your situation? We’re happy to advise you.
Light transmission factor
The LTA value (light transmission factor) indicates how much natural daylight passes through the glass. The higher the value, the more light enters your home — and you’ll notice it immediately. Daylight not only makes your living space more pleasant, but it can also help reduce energy use. The more natural light that comes in, the less often you need artificial lighting.
More light — or just a little less? You decide.
Not every space needs the same amount of daylight. In homes or buildings with large glass surfaces or strong direct sunlight, a lower LTA value can be more comfortable — helping to prevent glare, overheating, or fading of furniture and floors.
That’s why BENGglas offers different glass types — from ultra-clear to more solar-control — with both high and lower LTA values, depending on the function of the room and the orientation of your facades. Whatever you choose, you’ll always enjoy superior insulation, with U-values as low as 0.35.
Want to know which option best suits your plans? We’re happy to help you decide.
Solar heat that is welcome
Extra clear glass with a high G-value (up to 0.68) lets more solar heat in — meaning less heating in winter and a lower energy bill. Especially for south- or east-facing facades, this can be a smart choice. Where solar control glass keeps heat out, extra clear glass does the opposite — making it ideal for spaces where warmth is welcome, such as living rooms, conservatories, or heritage facades.
Thanks to advanced vacuum technology, the insulation value remains unmatched, so heat stays inside and energy loss is minimized. A true win-win: more sunshine indoors, less heat escaping outdoors.
Frequently asked questions
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?
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.
How much subsidy do I get for BENGglas in the Netherlands?
Good news! Thanks to the Investment Subsidy for Sustainable Energy and Energy Saving (ISDE), you can receive a nice reimbursement if you make your home more sustainable with BENG glass:
- € 25 per m² if you only replace the glass with BENG glass (report code: KA18780)
- € 111 per m² if you also renew your window frames (report code: other)
- € 46 per m² if you live in a national monument and replace the glass with BENG glass
And it gets even better: if you also take other insulation measures, such as roof or floor insulation, the amount will be doubled!
Are you unsure if your home is a national monument? Check it quickly on RVO.nl.
Are you an entrepreneur and want to make your business premises more sustainable?
Then the Energy Investment Allowance (EIA) is something for you! With this, you can receive up to € 300 per m² in tax benefits. Note: the investment must be at least € 2,500. Don't forget to apply for the subsidy within three months after installation via the eLoket of RVO.nl.
How much subsidy do I get for BENGglas in Belgium?
Do you live in Flanders? Then there's good news! When renovating your home or building, you can take advantage of the renovation grant. Are you replacing your old glass with BENG glass? Then you can get back no less than €16 per m²!
Applying for the subsidy? Super easy:
- Have BENG glass installed by a recognized dealer or contractor.
- Apply for the grant via the online portal at Vlaanderen.be.
- After installation, you will receive a certificate from the contractor, which you use for your application.
Saving can be that simple!
References
Are you curious to see where BENGglas has already been applied? Check out our references and discover the power of vacuum glass in practice. From carefully renovated monuments with special monument glass to sustainable new buildings and modern office buildings – BENGglas makes a difference for a greener future.
Get inspired and discover what we can do for your project!
BENGglas in ‘The Art of Living’ with the sustainability of a 100-year-old building
BENGglas breathes new life into mill Woldzigt
Verduurzaming woonboerderij Spanbroek
