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Das Haus der sozialen Sicherheit

After a two-year renovation phase, the approximately 350 employees of the Main Association of Social Insurance Institutions were able to move back into their headquarters in Vienna Landstrasse. The winning project of the international competition was penned by the Paris-based architectural firm Chaix & Morel et Associés. Component-activated ceilings and a sophisticated energy concept helped the building win klimaaktiv Gold.

Building owner

Dachverband der österreichischen Sozialversicherungen

Finalization

2020

Architecture
Chaix & Morel et associés, Atelier d’architecture
Specialist planning

Building physics: Schöberl & Pöll GmbH; building services: ZFG - Projekt GmbH, TB Eipeldauer + Partner GmbH; general contractor: Arge UNH Habau Östu Stettin

Floor space

12.062 m²

Vor dem Gebäude ist der Platz mit großen Betonplatten bedeckt, dazwischen sind runde Beete mit vielen kleinen Sträuchern und vereinzelt frisch gesetzten Bäumen. Dahinter steigt die Glasfassade des Gebäudes in die Höhe. Die Fassade besteht zur Gänze aus Glas, mit dünnen Pfosten in schwarz und weiß dazwischen.
Franz Ertl/V+P
Thermal activated building
Thermal activated building
Heating + Cooling
Heating + Cooling

In order to meet the EnerPHit passive house standard, the building envelope of the solid construction was replaced by a new mullion and transom facade, which is energetically optimized. At the same time, the building technology sets a new benchmark for comparable renovation projects. The heating system is based on district and local heating, and the ventilation system operates with heat recovery. A photovoltaic system with almost 150 kWp adorns the flat roofs of the main building and the annexes as a "fifth facade". Heating requirements were reduced by a total of about 1.6 million kWh/a, resulting in annual CO2 savings of more than 430 tons. The goal was to realize a zero-energy office building as a lighthouse project. A property was created that has won several awards for the interplay of energy efficiency with optimal facade insulation and minimized energy consumption. In the course of the general renovation, two certificates were acquired: Klimaaktiv Gold and Greenpass Certification Optimization Silver. The third certificate is the EnerPHit standard.

Through component activation of the exposed concrete ceilings, their mass can be effectively used for heating and cooling. As soon as the outside temperature is below the inside temperature of the building, a night ventilation system is also used. In this way, the temperature reduction of the storage masses of the building core takes place with minimal energy input and extreme effectiveness. In terms of its appearance, the new "House of Social Security" is not only part of an illustrious circle, but has advanced to become an inviting neighborhood center with an exemplary function.

(Text: Linda Pezzei; Z+B magazine; in shortened form)

Das Gebäude ist in seiner ganzen Höhe zu sehen. Die 16 Geschossige Glasfassade glänzt in der Sonne. Die Fesnterelemnete sind schmal aber geschosshoch aufgeteilt. Die unteren vier Geschosse sind mit schwarzen Rahmen gebaut, darüber sind die Fesnterfassungen Alle weiß.
Franz Ertl/V+P
Auf dem Vorpltz des Gebäudes ist eine große Rote Hand aus Metall, deren Zeigefinger in Richtung des Eingangs zeigt. Umgeben ist diese von den runden Beeten. Im Hintergrund ist die Glasfassade des Gebäudes zu sehen.
Franz Ertl/V+P
Der Vorplatz des Gebäudes mit seinen Hellen Betonplatten und den Beeten. Rechts im Bild der Gebäudeteil mit zwei Geschossen. Links beginnt der Hochhausteil des Komplexes.
Franz Ertl/V+P