Lizard Cloud

Doubly curved pavilion made of panel materials

Architectural shells are material wise highly efficient, spatially curved, thin-walled structures. The challenge of their realization as a structure exists to this day in material representation of their spatial geometry. Or: How do you make a doubly curved surface out of flat plates? Based on this project idea, FLEX developed a show pavilion with a variably curved surface (W 5,12 mx D 3,42 mx H 3,23 m) as a spatially arresting connection system made of individually cut board material. The targeted use of the detachable connection and the geometrically intelligent cut, leads to the high variety of forms of the entire structure.

The decision in favor of a semi-permeable skin allowed to define the individual radii of curvature and the position of the connection points solely according to static-constructive specifications. The generation and exact production of the geometrically individual segments could succeed here only by consistent use of digital planning and production tools.

Keywords: lightweight design, doubly curved, connection system, plug connection, Designers Open, panel materials, semi-permeable skin, digital planning

Design idea

The basic idea was inspired by nature: the scale-like arrangement of rhombic, folded plates. This results in a three-dimensional and thus self-stiffening structure. The principle of double-entangled insertion and the spatially "skewed" arranged individual elements allows their tool-free joining to form a stable structure with a large construction depth. In addition, this is easy to erect, since each element only has one cut to connect to the neighboring element.


An essential element of the technical aesthetics and clarity of the structure is the almost complete abandonment of standardized fasteners. In a complex research and development process, the local geometry in the connection area of the elements was repeatedly analyzed and examined until finally the individuality of the cut could be applied not only to the outline of the panels, but also to their connection area. The spatially interlocking of the individual parts gives the structure the necessary rigidity and, with its considerable deformations, shows a quite interesting approach in the sense of yielding, adaptive structures.


Developed on the basis of the structural principle, the LIZARD CLOUD has its own unique aesthetics, which redefine the architectural concept of space in a technically intended way. The result is a clearly defined space, which plays thoroughly with the relationship between inside and outside and offers new vantage points from different perspectives. At the same time, the structure almost casually represents an exemplary resource efficiency, as it weighs just 135 kg with a surface area of about 40 square meters!


The LIZARD CLOUD was presented for the first time at the Designers Open'2013 in Leipzig, impressing visitors and experts alike.


"Lizard Cloud - Maximale Funktionalität", publication in the DBZ-magazine for young architects Der Entwurf, April 2015 (p.10-11)


processed by:

Anne Wölfel, B.A.

Christian Bobsin, B.A.

Dipl.-Ing. Hannes Löschke, M.A.

Marius Zwigart, B.A.

Max Schuster, B.A.

supervised by: Prof. Dr.-Ing. Alexander Stahr