ETFE Film | Tensile Membrane Structure Materials

ETFE is copolymer, of ethylene and tetrafluoroethylene. It’s refined from seawater which includes 25% ethylene and 75% tetrafluoroethylene. It belongs to PTFE fluorine polymer. It shows the excellent features, and is used in various applications.

The durable film is highly transparent and very lightweight in comparison to glass structures. In fact, ETFE film generates 95% of the same light as glass, but weighs just 1% its weight.

Single Layered Structures (mechanically pre-stressed)
ETFE can be applied in a single layered membrane and tensioned with either wire cables, light weight steel or aluminum to maintain shape and stability.

Double or Triple Layered Structures (pneumatically pre-stressed)
In two or more layers, a pneumatic cushion is created that is then attached using aluminum extrusions and supported by a lightweight structure. These cushions are filled with low-pressure air, providing thermal insulation and structural stability against wind or snow loads. If needed, small cables can be used for additional tensioning and support. Under typical loading conditions, ETFE cushions can range from 5 to 15 feet wide and reach up to 200 feet in length.

Key Benefits of ETFE Film:

  • High permeability to light in the visual and UV wave range
  • Great chemical resistance to acids and alkali
  • Light transmission up to 95 %
  • Clear or white, limited colour
  • Printable (e.g. sun protection)
  • Self-cleaning because of very good anti-adhesive surface properties
  • Light-weight material (esp. compared to PC, PMMA , Glass)
  • Weldable with specially designed machines
  • Complete recyclability
  • Long life of more than 30 years

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ETFE Projects

Lincoln Avenue Pedestrian Bridge

Lincoln Avenue Pedestrian Bridge

The Pavilion in Bend

The Pavilion in Bend

Downtown Summerlin

Downtown Summerlin

2010 Shanghai World Expo, Germany and China Museum

2010 Shanghai World Expo, Germany and China Museum

Oceanus Casino

Oceanus Casino

Suzhou Industrial Park

Suzhou Industrial Park

Vitam Centre de Loisirs

Vitam Centre de Loisirs

Discovery College

Discovery College

AIA continuing education unit course anatomy of a tension structure

Architects, Learn About Fabric Structures & Earn An AIA CEU Credit

Take our Anatomy of a Tension Structure AIA-approved Continuing Education course which will earn you 1.00 HW LU upon successful completion of a short quiz at the end. This presentation will inform you on the design, forms and uses, available materials, components and details, and the design/build process for tensile membrane/tension fabric structures.

Take CEU Course