An interview with Richard Arnold, Head of Technical Planning at Brand Metallbau AG and responsible for AURA. Together with his team, he is working on continuously optimizing the frameless sliding window in terms of know-how, innovative strength and technical possibilities.
Congratulationson 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 delicate face widths that were previously only possible with conventional sealing systems. In addition, there 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 installation.
How isBrand 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.
Driving rain tightness:
Class E 2100
Air permeability:
Class 4
Resistance to wind load:
Class E 2200
The breathtaking view from Lake Lucerne to the Alps and the hillside location immediately caught the eye of the architects at Tanner Odermatt. This view was to be experienced in as many places as possible and staged in a targeted manner. Due to the topography, which slopes down to the south-east, the architects attached great importance to a deliberately multi-sided orientation of the project.
The impressive size of the project blends gently and naturally into the existing surroundings thanks to the stepped building volumes and outdoor spaces as well as a finely structured façade design.
The ensemble of two pavilion-like villas on an elevated plot with spectacular views over Lake Zurich also benefits to the full from our AURA window system in every respect. Thanks to the villas' transparent architecture, the duo blends harmoniously into the picturesque surroundings and allows the indoor and outdoor areas to flow seamlessly into one another.
Whether pool house or outdoor pool: the breathtaking backdrop of Lake Zurich is always the setting.
Only a few details - pallets, tools and a bit of barrier tape - indicate that the planning and construction teams are in the final stages of a special project.
Studio Sito Architekten GmbH were able to focus solely on their job. Brand Metallbau AG manufactured and installed the frameless sliding windows and glass elements with precision craftsmanship from a single source - a reliable system for sophisticated architecture.
AURA has been certified by the Test Institute for Window Technology (ift Rosenheim) for the world's best tightness in all relevant categories. It combines a straightforward design language with world record performance.
AURA was awarded the world's best tightness in the following categories:
Driving rain tightness E 2100: Driving rain is a combination of rain and wind, where the wind creates pressure that drives the water into the seals.The window can withstand extreme rain conditions, even under high wind pressure.
Air permeability class 4: Absolute airtightness minimizes energy losses and guarantees comfort. The excellent airtightness of class 4 contributes significantly to the overall efficiency of the building envelope and supports compliance with strict energy standards.
Class 4 windows are particularly suitable for
Resistance to wind load E 2200:
Wind load resistance measures the ability of the window to withstand wind forces.
AURA withstands a test pressure of 2200 Pascal, which is well above the class value of the highest special class 5 of 2000 Pascal. This classification indicates an exceptionally high resistance to wind loads, which may be required for special applications or extreme environmental conditions, e.g. in high-rise buildings or coastal regions.
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.
AURA can be equipped with a variety of innovative functions, fully integrated into the framework:
In the more than 75 years of its existence, Brand Metallbau AG has developed into one of Switzerland's leading companies in the field of metal, steel and façade construction and sheet metal processing thanks to its innovative strength and tradition of craftsmanship. The family business offers customized solutions from a single source and employs over 50 people. The solutions are both manufactured and assembled to ensure the highest quality. Brand Metallbau was one of the first craft businesses in the canton of Uri to rely 100% on renewable energies. To this day, the training company is a pioneer in environmental protection. It relies on energy-efficient buildings, modern machinery and a sustainable mobility concept.
For more information about AURA and Brand Metallbau AG, please visit our website brand.ch or contact us at tino.wyrsch@brand.ch.
Brand Metallbau is committed to reducing CO2 emissions and is a pioneer in environmentally friendly metal and façade construction, being largely independent of fossil fuels. AURA also reflects this commitment and, with its certified recyclability and CO2-reduced production, is a further flagship. Every detail is a commitment to durability and flexibility, which is guaranteed by Brand Metallbau.