All brick. Art Museum in Ravenbsurg by Lederer, Ragnarsdóttir and Oei.
13/01/2014.
German Architecture Award 2013. [Ravensburg] Germany
metalocus, INÉS LALUETA.
metalocus, INÉS LALUETA.
All material are recycle however the copper is not recycled but as Arno Lederer points out ‘lasts five or six centuries’. Commonly used in the town for drain pipes and guttering, here it is also similarly employed but as a distinctive. ‘We get into conversation with a building through the details,’ as Lederer puts it. For him it is as much a conversation with modern architectural history as context.
The museum’s structure has a compact shape and internalises the main spaces, highly insulated walls with thermal bridging reduced to a minimum −all clothed in a reused skin− are matched for thermal efficiency by the servicing strategy. Heating and cooling is supplied by a gas absorption heat pump, with a geothermal probe field serving as a heat source, maintaining the concrete slabs at a constant 22°C. This has resulted in the building receiving the first ever Passivhaus designation for a museum. All this has been achieved through a series of quiet, understated moves rather than any flashy green contortions. Over time, anticipated lower operating costs will add to the positive PR glow for the city. Fitting with ease into Ravensburg’s antique street-scape and comfortable in its own (if second-hand) skin, this is a building that is both sensible and sensuous.
Memory of project
The comment is limited to the question of how to deal with the old town focusing on continuity. We didn’t want to add to the discussion whether a building forms a contrast with a modern design or pretends to be centuries old, we didn’t want to build an eye- catching building, but a house, which attracts only at the second glance as a complement.
Architects like Lewerentz or Döllgast have addressed this problem with fascinating workmanship, familiar materials, beautiful construction and efficient floor plan. Thus the simple spatial concept with courtyard, rectangular and neutral exhibition areas, encircled from the access elements and encased on the exterior with recycled bricks. The roof is created with whitewashed brick shell spanning the space as vault construction.
Energy Concept: The construction of the museum with passive house standard was a difficult task, because for energy efficiency there had to be a minimum of windows and the paintings had to be lit by artificial light. Between concrete wall and exterior recycled brick wall there is a 24 cm-thick insulation. The necessary anchors and brackets create thermal bridges. To avoid their negative effect the steel contents of the mounting system had to be considerably reduced.
Text.- Lederer, Ragnarsdóttir and Oei, Architects.
CREDITS.
Architects.- Arno Lederer, JÛrunn RagnarsdÛttir, Marc Oei. Structural engineer.- Ingenierb¸ro Schneider & Partner. Energy concept / Heating / Ventilation / Air conditioning.- Herz und Lang, Vogt und Feist. Electrical planning.- Sulzer GmbH & Co.
Client.- Reisch Bau GbR.
Technical data.- Gross floor space: 1.900 m² Gross volume: 8.300 m3.
Construction period.- 2010 to 2012.
Location.- Burgstraße 9, 88212 Ravensburg. Germany.
Marc Oei, Arno Lederer and Jórunn Ragnarsdóttir.
LEDERER, RAGNARSDÓTTIR, OEI. Arno Lederer. 1947 Born in Stuttgart. 1968 – 1976 Studied architecture, University of Stuttgart and Vienna University of Technology. 1976 Diploma, University of Stuttgart. 1977 Position with Büro Ernst Gisel, Zurich. 1978 Position with Büro Berger Hauser Oed, Tübingen. 1979 Owner of Büro Lederer. 1985 – 1990 Professor for Construction and Design, University of Technology, Stuttgart. 1990 – 1997 Professor for Building Construction and Design I, University of Karlsruhe. 1997 – 2005 Professor for Building Theory and Design, University of Karlsruhe. 2002 – 2006 Professional adviser to the Federal Office for Building and Regional Planning, Berlin. 2003 – 2012 Board of Governors of the Technical University of Stuttgart. Since 2005 Professor for Public Building and Design, University of Stuttgart. Since 2009 Design adviser for the Dom-Römer-Areal urban renewal project, Frankfurt am Main.
Jórunn Ragnarsdóttir. 1957 Born in Akureyri (Iceland). 1976 – 1982 Studied architecture, University of Stuttgart. 1982 Diploma, University of Stuttgart. 1982 – 1985 Position with Büro Lederer. 1985 Partner with Büro Lederer Ragnarsdóttir. 1992 – 1993 Teaching Position, University of Stuttgart, under Prof. Boris Podrecca. 1998 – 2000 Stage sets and costume design for the Reykjavík City and State Theatre. Since 2009 Design adviser to the City of Lübeck. Since 2010 Professional adviser to the City of Munich. 2010 – 2012 Design adviser to the City of Mannheim. 2010 – 2012 Professor for Architecture at the Düsseldorf Academy of Art.
Marc Oei. 1962 Born in Stuttgart. 1984 – 1988 Studied architecture, Technical University of Stuttgart. 1988 Diploma, Technical University of Stuttgart. 1988 – 1992 Position with Büro Lederer Ragnarsdóttir. 1992 Partner with Büro Lederer Ragnarsdóttir. 1995 – 1999 Teaching position, University of Karlsruhe, under Prof. Arno Lederer. 1999 – 2002 Teaching position, Technical University of Stuttgart. 2001 Teaching position, University of Stuttgart, under Prof. Peter Cheret.