Monuments restored with glass that new constructions envy
BENGglas is the solution for monumental buildings that want to be ready for the future without changing their appearance. Where double and triple glazing is often too thick or too heavy, BENGglas is so thin that it simply fits in the existing frames.
The result? Up to three times better insulation than double glazing, without having to sacrifice anything from the building. You save significantly on energy, it stays warmer (or cooler) inside for longer, and noise from outside is noticeably reduced.
Does your building still have that characteristic drawn glass with slight waviness? Then choose BENGglas Monu or BENGglas Monu Restover!
Perfect for:
- National monuments
- Historic city centers
- Repurposing of churches, farms, and mansions
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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!
Heritage in the energy transition: character remains, energy loss disappears
Monuments and historical heritage are inextricably linked to our culture and history. But these buildings are often the biggest energy guzzlers. Traditional single glazing allows cold and heat to pass through effortlessly, resulting in high energy costs and low comfort levels. Sustainability is therefore urgently needed — but without compromising the character of the building.
Unfortunately, double or triple glazing is often too thick or too heavy. And because the frame usually cannot be modified to maintain the original appearance, standard insulating glass is simply not an option.
BENGglas offers the solution.
With a thickness of only 8.3 mm, BENGglas vacuum glass is extremely thin, lightweight, and fits in almost any historical frame. And with an insulation value (U) starting at 0.35, it offers twice the insulation of triple glazing and even three times better than double glazing.
This provides a much-needed solution for protected heritage, characterful buildings, and buildings where restoration must be done with care.
Without compromising the appearance, but with impressive performance: superior insulation, more comfortable living, and an expected lifespan of no less than 50 years.
Monument glass with BENG glass Monu
Are you looking for old historical or drawn glass?
BENGglas Monu is combined with an extra monumental counter pane.
This counter pane – also known as monument glass or historical glass – is recognized by its characteristic, slightly wavy surface. This traditional glass drawing technique was widely used in the 19th and early 20th centuries and is common in monumental buildings and protected heritage. During the renovation or restoration of such buildings, preserving this authentic feature is often a requirement of monument care.
By combining BENGglas with an extra monumental counter pane of 4 mm thickness, it is now possible to maximize the sustainability of these protected buildings, with an impressive insulation value (U) of up to 0.50! For comparison: traditional (double) monument glass achieves, depending on the composition, a U-value between 1.5 and 5.6. With BENGglas, you achieve much better sustainability.
The lifespan is also an important advantage: BENGglas has an expected lifespan of up to 50 years.
With BENGglas, you make a difference – even in monumental heritage.
Extra subsidy for national monuments
With the Investment Subsidy for Sustainable Energy and Energy Saving (ISDE), you receive a nice contribution when making your home more sustainable with BENG glass:
- €25 per m² when you only replace the glass with BENG glass (Report code: KA18780)
- €111 per m² if you replace both the glass and the frames (Report code: other)
- €46 per m² for glass replacement with BENG glass in national monuments
And it gets even better: do you combine this with additional insulation measures, such as roof or floor insulation? Then the subsidy amount is even doubled! Not sure if your home is a national monument? Check it easily on RVO.nl.
Are you an entrepreneur and want to make your business premises more sustainable?
Through the Energy Investment Allowance (EIA), you benefit from a tax advantage of up to €300 per m². Note: the investment must be at least €2,500. Don't forget to apply for the EIA within three months after installation via the eLoket of RVO.nl.
Up to 20 years warranty, 50 years expected lifespan
BENGglas is made for the long term! Our vacuum glass has an expected lifespan of no less than 50 years, and that’s why we offer up to 20 years warranty — that is twice as long as with normal insulation glass!
This warranty covers the revival of your BENGglas panes if the glass loses its insulating function within 20 years. This way, you are assured of a sustainable investment.
Do you want more information? Then download our warranty conditions in the knowledge base!
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 are the benefits of vacuum glass?
Vacuum glass is no ordinary insulating glass - it is a smart and future-proof solution for sustainable construction. Compared to standard insulation glass, BENG glass offers benefits that directly improve your home as well as help the climate.
- Superior insulation
With a U-value starting at 0.35 W/m²K, BENG glass is two times better than triple glazing (0.70) and three times better than HR++ glass (1.10). This ensures less heat loss, lower heating costs and a comfortable home. - No loss of insulation in slope
Many insulation glasses lose up to 60% of their performance when installed at an angle. BENG glass continues to perform. - Up to twice the lifespan
Whereas traditional glass lasts an average of 25 years, BENG glass lasts up to 50 years. Producing it once means less CO₂ and half a century of benefit. - Strong noise reduction
From 36 dB to 42 dB, well above HR++ (31 dB) and triple glazing (33 dB). As a result, you live more quietly and peacefully. Ideal for homes or properties on busy roads. - More comfort all year round
Cool in summer, warm in winter - without draughts or cold spots. - No condensation on the inside
The unique edge seal completely prevents interior condensation. - Fits into existing window frames
With only 8.3 mm thickness, BENG glass almost always fits into existing window frames. This makes renovations easier and avoids unnecessary use of materials. - A true climate hero
If the entire Netherlands switches to BENG glass, we save up to 4.1 megatons of CO₂ annually - comparable to 170,000 car trips from Amsterdam to Paris.
The production of BENG glass itself will also save 24,000 tons of CO₂ per year, thanks to production using green energy, 30% less material usage than with triple glazing, up to twice the lifespan and high insulation. - A smart investment in the future
A U-value that insulates up to 2x better and that for as much as 50 years. Combine that with an improved energy label and a higher home value and you have your costs back immediately!
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.
How do I apply for a grant?
ISDE subsidy for individuals and companies
Do you want to apply for the ISDE subsidy through RVO.nl? Then make sure you have the following items to hand:
- An invoice with a report code, the contact details of the installation company and the date of purchase and installation.
- Photos of the installation, plus proof of payment.
- The number of square meters of glass you had installed (note: do not include extensions).
Important: you must submit your application within 24 months of installation.
EIA subsidy for business customers
Do you have a business? Then you must apply for the EIA subsidy within 3 months after installation via the eLoket of RVO.nl. Make sure you have everything ready on time so you don't miss out on any benefits.
Subsidy in Belgium
Do you live in Flanders? Then simply apply for your renovation subsidy through the online counter at Vlaanderen.be. You will need the certificate of your approved contractor.
References
Are you curious 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 constructions and modern office buildings – BENGglas makes the 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
Restoration of national monument ''De Broodbakkery''
BENGglas breathes new life into mill Woldzigt
