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World record!

The world's tightest window comes from Schattdorf.

An interview with Richard Arnold, Head of Technical Planning at Brand Metallbau AG and responsible for AURA. Together with his team, he works on continuously optimizing the frameless sliding window in terms of know-how, innovation and technical possibilities.

Congratulations on the world record! What's behind it?

Richard Arnold: There are more complex considerations behind the frame than you would expect at first glance. AURA, the new product generation, is the result of over 20 years of expertise and innovation. We were able to draw on the combined knowledge and design details that we have gathered over the years together with industry innovator Marcel Ritzi.

Can you briefly summarize the technical highlights?

Our active sealing system is a real highlight. It is absolutely impermeable to driving rain, storms and noise, while at the same time enabling filigree visible widths that were previously only possible with conventional sealing systems. Added to this is an improved sliding technology that opens and closes rooms effortlessly and almost silently - with enormous flexibility in the opening variants.

Are there any other special features?

We have integrated many comfort options into the framework, such as ZIP screens for shading and temperature regulation, fully integrated insect screens or an electric drive. Everything is based on carefully selected materials and a strong manufacturing philosophy. We also test everything on our own test bench to ensure the highest level of precision craftsmanship - from design to assembly.

How is Brand Metallbau AG responding to the growing challenges of climate change?

We rely on sustainable materials and production processes. The aluminum for AURA comes from regional sources with a strong focus on recycling and resource conservation. Our CO2-reduced production and in-house test bench guarantee not only the highest quality, but also durability. In this way, we make an active contribution to environmental protection and at the same time offer solutions that can withstand even extreme weather conditions in the long term.

World's best tightness.

Driving rain tightness:
Class E 2100

Air permeability:
Class 4

Resistance to wind load:
Class E 2200

Vertical section Active sealing system (ADS)

ADS inactive

ADS active

With its active sealing system, AURA is 100% impermeable to wind, rain and noise and offers a straightforward design language with filigree face widths that were previously reserved for conventional sealing systems.

Operation is simple and convenient: air is introduced into the seals at the touch of a button to close the windows or doors. When open, the seals are fully rolled up, allowing the elements to be moved easily and effortlessly.