advanced building skins 14 | 15 June 2012 - lamp.tugraz.at - Graz ...

Prof. Dr.nat.techn. Oliver Englhardt
Institute of Building Construction
Graz University of Technology
Copyright © with the authors. All rights reserved.
Energy-oriented Facade-Renovation of
Architectural Monuments
Bernhard Weller, Prof. Dr.-Ing.
Technische Universität Dresden, Institute of Building Construction, Germany,
Bernhard.Weller@tu-dresden.de, www.bauko.bau.tu-dresden.de
Sebastian Horn, Dipl.-Ing.
Technische Universität Dresden, Institute of Building Construction, Germany,
Sebastian.Horn@tu-dresden.de, www.bauko.bau.tu-dresden.de
Summary
Architectural monuments are a vivid picture of history and play an important role for the identity
of the society. Energetic enhancement and the climate change adaption presents a major challenge
to architectural monuments. As a part of building stock they cannot escape from this problem. This
paper describes the energetic renovation of two significant monuments. It includes a description of
the buildings as well as a variety of solutions and their practical implementation. The conflict
between both, an energetic renovation and a sensitive handling with historical landmarks leads to
new developments and concepts. These results can be transferred to comparable buildings.
Keywords: Bauhaus Dessau, Schillerpark Berlin, Energy-Efficiency, Facade-Upgrade
1 Bauhaus Dessau
1.1 Introduction
With regard to the high level of occupancy, heating loads and rising energy prices, constantly rising
operation costs occur for the Bauhaus-building in Dessau. Consequently, first ideas for an energetic
enhancement of the building started in 2009. The main focus has been put on the preservation of the
original appearance and the quality of the monument. Apart from the financial aspect of the high
facility costs, the thermal comfort shall be improved. Because of the radiative cooling of single
glazing, some users complained about strong drafts in the rooms. Very soon it became obvious that
only the development of an overall concept can protect the value of the monument.
The complex of buildings of the Bauhaus in Dessau consists of five main parts – workshop wing,
north wing, bridge, atelier building and intermediate building – which were built within one year
(1925/1926) and inaugurated in December 1926. Figure 1 gives an overview of the Bauhaus-building.
The workshop wing is fully glazed on the upper floors. The glazing itself is impressing due to its
filigree work and transparency. Destroyed areas had been closed with a perforated facade after World
War II and restored during the first general renovation in 1976. The design of the curtain wall of the
workshop wing was oriented on the original construction, but instead of the original steel profiles
aluminum profiles with larger dimensions were used. Because of the status as an architectural
monument renovation works cannot be done on this facade.
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