Sisters tower

City : Puteaux
Contracting authority : Unibail Rodamco Westfield
Team : 2Portzamparc, Elioth, Artelia, SETEC, TPI, SETEC Bâtiment, AE75
Surface area : 66 000m² of facade
Phases : conception 2015 / construction 2020-2024

Elioth’s was brought on board by 2Portzamparc to provide full Façade design engineering services and construction supervision for the Sisters Towers at La Défense. The building is composed of two towers connected by a bridge building. The project covers 52 (Tower 1) and 32 (Tower 2) levels from the ground floor, 220 metres high. The levels of Tower T1 are intended to be occupied mainly by offices. The levels of the T2 tower are intended to be occupied by hotel residences.

Expertise

Studies and follow-up of the realization of the façades of the Sisters Towers. The work covers curved block façades with complex geometries, the rendering of screen-printed glazing, the definition of the natural ventilation system and the study of maintenance systems.


Studies and monitoring of special works: hall facades with complex geometry up to 25m span and curved opaque roofs.

Find out more from...

Marion MARTY-MAHE

directrice déléguée / responsable pôles façades.

Philosophy

Responding to the climate emergency by sustainably transforming urban fabric.

Elioth is a brand of the Egis group.

Egis Concept (Elioth + Openergy) is a collective that brings together all the facets of technical design to meet environmental challenges.

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