Today, the cutting edge in architecture is not sharp but curved and undulating. It is also impermeable to moisture, resistant to extreme temperatures, flexible and portable. Known as the fifth building material after wood, stone, glass, and metal, membranes are popping up everywhere: in Olympic stadiums in Berlin and Atlanta, in airports from Denver to Bangkok, over fashion shows, formal gardens, and soccer fields. Membranes¡¯ ability to not only let in but also reflect light portends enormous possibilities for harnessing energy.

This fascinating survey of membrane structures throughout the world discusses the history of the medium, describes the materials and their uses, explores the technology of membrane construction, and investigates numerous current and future projects. A final chapter offers a reasoned argument for further research and experimentation in this rapidly expanding field and a projection of its exciting future.