Skyscraper Bugginger Strasse 50

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The Bugginger Strasse tram stop with the high-rise building

The high-rise building at Bugginger Strasse 50 in Freiburg im Breisgau is the world's first energy-efficient passive high-rise building . The 45 meter high building is a 16-storey high-rise with a living space of around 7,000 m², which was built in 1968 in the Weingarten district and renovated in 2009 and 2010. Today it belongs to the municipal housing association Freiburger Stadtbau (FSB).

Redevelopment concept

In the Weingarten district, several buildings in need of renovation were owned by the FSB in the 2000s. At first there were considerations to demolish the skyscraper at Bugginger Strasse 50. However, under the direction of the architect Roland Rombach, the FSB decided to convert the building into a passive house as part of a renovation for 13.44 million euros. For this purpose, the skyscraper was first gutted in order to then redistribute the floor plans of the individual apartments. From the previous 96 apartments, 139 residential units were created with a largely airtight building shell. To achieve this, the existing balconies were integrated into the living space and new balconies were added to the facade. Some residents criticized the new layout because less space was available for the same rent. The facade received a 20 cm thick, the roof a 40 cm thick thermal insulation composite system , the windows a triple glazing . An airgel was used above the windows to insulate the roller shutter boxes. A photovoltaic system with an output of up to 25  kW was installed on the flat roof . Fans were placed next to them, which extract the used air from the apartments via a heat exchanger and blow fresh air into it. A nearby block-type thermal power station supplies the building with hot water via district heating. As a result of these measures, the heat requirement of the high-rise decreased from an average of 68  kWh / m² per year to 15; the emission of carbon dioxide by 57 tons. The project was accompanied by the Fraunhofer Institute for Solar Energy Systems (ISE): They recorded a large number of measured values ​​in 29 apartments on three floors for two years in order to examine the development of energy consumption after the renovation.

Effects

The residents had to leave their apartment before the renovation. It was found that the majority of them did not move in again, but new tenants asked for the apartments. After the renovation, you received a briefing from an energy consultant . In addition, the FSB promised them to forego rent increases for the next ten years. A district management accompanied the new residents after they moved in.

Awards

The project is part of a redevelopment concept for the Weingarten-West district, which won the “Silver” category in the course of the “Energy-efficient renovation of large housing estates” competition organized by the Federal Ministry of Transport, Building and Urban Development . The Council for Sustainable Development describes the renovation concept as a "lighthouse project" to promote the coexistence of young and older people.

literature

  • Federal Agency for Civic Education (Ed.): Information on Civic Education: Energy and Environment . 1st edition. Issue 319. Federal Agency for Civic Education, Bonn 2013, p. 14 .
  • Erik Bichard: The Coming of Age of the Green Community: My Neighborhood, My Planet . 1st edition. Routledge, 2013, ISBN 978-1-136-27067-3 , pp. 26 .

Web links

Individual evidence

  1. ↑ Claudia Füßler: Simply shut down . In: Die Zeit , March 18, 2012, accessed September 10, 2013.
  2. ↑ First passive high-rise in the world opened , website DETAIL - Journal for Architecture + Baudetail, accessed on October 9, 2013.
  3. ^ Bugginger Straße 50, Weingarten ( Memento from December 11, 2014 in the Internet Archive ), Freiberger Stadtbau website, accessed on September 9, 2013.
  4. ↑ Press release of the City of Freiburg from January 13, 2010 on the project , (PDF; 70 kB), website of Freiberg Stadtbau, accessed on September 9, 2013.
  5. ↑ Beate Beule: Not everyone is enthusiastic . In: Badische Zeitung , September 28, 2009, accessed October 10, 2013.
  6. ↑ Press release of the Fraunhofer Institute for Solar Energy Systems from January 13, 2010 on the project , (PDF; 167 kB), accessed on September 9, 2013.
  7. ^ Simone Lutz: Passive high-rise: the pitfalls of a pilot project . In: Badische Zeitung , July 15, 2009, accessed October 10, 2013.
  8. ^ Quarter work Weingarten West , website of the neighborhood work Weingarten-West, accessed on October 9, 2013.
  9. ↑ The world's first passive high- rise relies on fiber-reinforced windows , website from baulinks.de, accessed on October 10, 2013.
  10. ↑ Generation dialogue in practice , (PDF; 1.5 MB), October 2009, website of the Sustainability Council, accessed on October 10, 2013.

Coordinates: 47 ° 59 ′ 50.3 "  N , 7 ° 48 ′ 22.5"  E