2024-01-06 23:00:00
“The Oberndorf town hall is a good example of efficient and sustainable solid construction made in Salzburg.”
Ernst Tiefenthaler
Baumeister
The town hall in Oberndorf is a role model when it comes to energy efficiency
A good example is the new town hall in Oberndorf. The “Neue Mitte” in the municipality north of Salzburg has been a popular meeting place for citizens, community representatives and employees alike since it opened six years ago. As a modern and open citizen service center, it is the spatial implementation of a transparent and citizen-oriented city administration.
Sustainable energy solutions
The municipality of Oberndorf invited people to a one-stage implementation competition for the new town hall, from which Megatabs Architects from Salzburg emerged as the winner. Tiefenthaler – Layerle was commissioned to construct the building. In accordance with the innovative “Smart City” principle, the highly energy-efficient concrete building is connected to the neighboring Federal High School (BORG). “Together with all the professionals involved, we managed to reduce the costs for heating and cooling to a minimum, which relieved the municipality’s budget enormously,” says Ernst Tiefenthaler.
Local heating and cooling network town hall and BORG: an energy showcase project
An energetic masterpiece was achieved through the intelligent energy-technical networking with the Federal Higher Secondary School (BORG). A thermal solar system was built on the flat roof of the BORG. The two buildings are connected to each other via an energy network and the local heating and cooling network has been considered a showcase energy project since it went into operation. The town hall is heated and cooled exclusively via the component-activated concrete ceilings. During the heating period, these are primarily supplied with heat via the thermal solar system. The efficient BORG heat pump is used as a backup for periods of low sun or to provide necessary peak heating loads. The remaining solar surpluses are available to the BORG. The cold water (“district cooling”) from the school’s own well system is used to cool the office rooms.
Component-activated reinforced concrete ceilings and perforated gypsum panels: efficient and energy-efficient
Trendy perforated gypsum panels were suspended from the component-activated reinforced concrete ceilings. An optimized hole pattern and additional slots in the edge areas ensure optimal heat radiation. The perforated panels also improve the acoustics of the office space. This highly efficient and energy-efficient showcase project enables room temperatures of 22 to 24 °C all year round. The low and constant surface temperatures ensure a high level of comfort and create an optimal room climate.
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