The integration of the attic conversion into the surrounding roofscape represents an urban strategy leading to the folding of the roof. The large scale roof areas are being developed according to the internal functions and to the urban context, featuring visual connections in between the multi-storey apartments as well as into the city and the surrounding landscape.
The living areas are subdivided into individual and collective recreational zones, interior infrastructure and exterior green areas. The habitable rooms are orientated towards the natural light, while the secondary rooms border on the chimney walls. The specifications of the openable windows vary with the apartments’ different levels; vertical sliding panels lead to the exterior areas, while sloping panorama roof lights that are flush with the roof’s surface facilitate long distance views to the Stephansdom and to Maria am Gestade.
Roof Folding The roof’s contour is being developed within the maximal acceptable footprint and is being transformed in accordance with the existing building, using the existing window positions as a starting point. Further defining parameters include the internal functional areas and the urban context, e.g. adjacent and opposite roof edges or loose and clustered neighbourhood building patterns.
The roof shape is formed by a steel frame construction with interjacent timber rafters, while the floors are supported by steel beams and folded metal sheets. The roofs’ surfaces consist of prefabricated glass fibre reinforced concrete elements and large scale glazing, flush with the roof and partially openable by sliding elements.HOLODECK architects : Marlies Breuss, Michael Ogertschnig
Project team: Marlies Breuss, Michael Ogertschnig, Christian Rottensteiner, Christian Mörtl, Sven Klöcker, Jan Chladil, Stephan Goos, Sebastian Uhl, Stefan Förg, Alexej Kolyschkow
Dimension: Gross area 1.400 sqm, building area 1.022 sqm
Photographer: Pasteiner, HOLODECK architects