ETFE Film Structures
This film is made of Ethylene Tetrafluoroethylene (ETFE). ETFE is a durable, transparent, and lightweight alternative to glass in long span skylight applications and facades. Other advantages of the material are its dirt-resistance and UV-resistance, and recyclability. ETFE was developed by DuPont in the 1980s and was first used in agricultural applications and in the coating of solar cells. Its first major architectural application was in the Eden Project by Nicholas Grimshaw, completed in 2000. ETFE may be utilized in single-, double- or triple-layered applications. In double- or triple-layered applications, air is trapped in between layers to create "cushions" filled with low-pressure air. This material is available in different colors and patterns that can improve solar control and provide shading.
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University Co-op Materials Lab