Membrane Structures for Stadiums

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The Green Point Stadium in Cape Town was newly built for the 2010 Football World Cup. In this case, a multifunctional arena was created with a spectator capacity of 68,000 seats, all offering the best-possible view. The flowing facade of the stadium consists of an abstract, light membrane structure consisting of extensive concave elements. The translucent surface absorbs and reflects daylight in a unique fashion: at sunset the stadium shimmers with a reddish light, which turns blue on summer days and gray during unfavorable weather conditions. The wave-form roof was clad with composite safety glass and covered on the interior with a translucent membrane skin. Technical elements such as sound equipment and lighting could be integrated between the glass cladding and the membrane. Verseidag Indutex GmbH in Krefeld, a company specializing in textile architecture, supplied the textile load-bearing structures made of duraskin membranes. Various coating processes on different carrier and coating materials result in optimum protection, similar to a second skin. The duraskin membranes also consist of glass fiber textile material coated with Dyneon PTFE and Dyneon fluorothermoplastic, which exhibits tensile strength of up to several tonnes per square meter and only weighs between one and one and a half kilograms per square meter.

Resistant even to extremes of weather

The coating provides the membrane with the features that are decisive for robust use in stadium construction: The surface of the coating is very smooth and is permanently resistant even to extremes of weather – as long years of experience in different climatic zones testify. In addition, Dyneon PTFE is resistant to virtually all chemicals and exhibits good mechanical characteristics. A major advantage of PTFE coatings is that they do not require softeners or stabilizers, which can evaporate over time, leading to embrittlement of the coating. Membranes coated with Dyneon PTFE and Dyneon fluorothermoplastic remain smooth and elastic, offering no cracks where bacteria or molds can gain a foothold, even after several years. And even after many years in position, a shower of rain is generally sufficient in order to clean the roofs. The translucency of the fabric guarantees optimum lighting conditions for spectators and players during daylight.

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Membrane Architecture

Membrane Structures for Stadiums

Resistant even to extremes of weather