Archetech Issue 26 2016 | Page 40

(Picture source: architecture office L3P) Before: unsatisfactory both visually and in terms of energy efficiency, with a rather monotonous and inhomogeneous building shell in “container look“. (Picture source: AGROB BUCHTAL Gmbh / Adriano Faragulo) Afterwards: functional and stylish with a facade with clearly defined lines and proportions, which conveys an almost futuristic impression. “Stiftung Vivendra“ at Dielsdorf / Switzerland proves it: one can… Preserve the past and build the future Archetech - Page 40 Learning, living, working - these are the three words which accurately describe “Stiftung Vivendra”. The establishment was founded in 1965 by a parents’ association to support cerebrally paralyzed persons. In 1970, the Dielsdorf location with a remedial pedagogic school, a boarding school, therapies and a home for adults was opened. Since that time “Stiftung Vivendra“ takes care for cerebrally (“concerning the cerebrum“) handicapped persons of every age - from the baby in the integrative day-care facility for children to the group home for old people. Today, the organization is operating at four localities in the Zurich region. The facades of the nucleus of the foundation at Dielsdorf have been extensively renovated recently. The result is impressive because of durable and future-oriented solutions, but preserving the architectural roots at the same time. The history As mentioned, the four volumetrically subtly erected building components A to D were built in the transitional period from the 1960s to the 1970s. In the 1980s, a first rather provisional facade renovation was carried out: as a contribution to minimizing deficits in terms of energy efficiency, an 5 cm thick (or to be more precise, thin) rock wool insulation was installed and cladded with fibre-cement boards. Retrospectively, this solution must be considered as suboptimal both technically and visually (see motif top left). To change this unsatisfactory condition, the planning for a general facade renovation was started in 2013 by the renowned architecture office L3P Architekten (Regensberg near Zurich) managed by Dipl.-Ing. Arch. FH Mareike Beumer. Following this professional planning, the facades of three of the four buildings in total were completely renovated in the time from autumn of 2015 to summer of 2016. (House D will follow at a later date not yet defined). The constructive design One peculiarity was that the loadbearing capacity of the wall - a type of steel frame construction with infill - was statically insufficient. That is why the anchoring and the load transfer of the new building shell had to be effected via the ceilings. This task was performed by means of consoles with angle brackets, which were adjustable in order to level deviating facade depths at the same time. These consoles formed the basis for an intelligent facade construction with an optimal insulation in terms of energy efficiency towards the wall and a multilayered design towards the outside: on a lathing providing a rear-ventilation space of 4 cm, the “KNAUF AQUAPANEL Cement Board Outdoor“ was screwed, and ceramic tiles were laid on these boards. This tiles supplied by the well-known architectural ceramics brand AGROB BUCHTAL were specially produced for this project in the Buchtal factory at D-92521 Schwarzenfeld The architectural effect The building ensemble at Dielsdorf is embedded in a park-like environment in which many guests and occupants enjoy relaxing or inspiring walks. Therefore, it was important to avoid a monotonous impression and to find a look instead which - corresponding to the occupants’ handicap - conveys discreet charms without being shrill. In simple words, the intention was to create a “park for (Picture source: AGROB BUCHTAL Gmbh / A. Faragulo) Thanks to exact mitre cuts, the tile pattern is continued even “around the corner“ and creates dynamic perspectives. Great care in details also becomes apparent in the area of the window frames and the roof parapet.