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

2 Schillerpark Berlin
2.1 Introduction
Advanced Building Skins
The residential estate Schillerpark, which was built in the 1920s and 1950s by the architects Bruno
Taut and Hans Hoffmann belongs together with five other estates of the “Berliner Moderne” to the
UNESCO World Cultural Heritage. For this renovation, the focus was put on the development and
implementation of a sustainable energetic concept.
The estate is composed of six construction stages. The first three sections were built between 1924 and
1930, sections four to six in the years between 1954 and 1959. The blocks of flats of the construction
stages five and six possess plastered facades and were designed as 2½ - room flats. After World War II
the buildings were built with a high level of transparency. Figure 5 shows the facade to the backyard
which is almost completely glazed. The window areas of the balconies consist of two layers of single
glazing, which are divided by a 50 cm wide space. This type of glazing is also called “Blumenfenster”
(flower window) and has a high priority for the energetic renovation as well as for the status as a
monument.
Figure 5: Balconies with the Blumenfenster.
On the one hand it is a major part of the monument and on the other hand it is critical for the energetic
performance of the building. Figure 6 shows a thermal image, which has been made during the
investigation of the Technische Universität Dresden.
Figure 6: Thermal image of the balconies with the Blumenfenster.
The remaining windows are composite windows consisting of two panes. The external walls, which
represent the most area of the outer shell, consist of 24 cm hollow blocks and are plastered on both
sides. A brick-chippings-concrete-ceiling is the bottom of the heated volume. The floor consists of
2 cm slag wool, 3 cm screed and the floor covering. The bottom side is covered by “Heraklit”-panels.
The massive roof construction consists of two shells of brick-chippings-concrete with an insulation
layer between them. The lower shell was built as a ribbed slab and the upper shell with an overhang.
- 5 -