Definition: ETFE stands for Ethylene Tetrafluoroethylene, a transparent polymer that is used instead of glass and plastic in some modern buildings. Compared to glass, ETFE:
- Transmits more light
- Insulates better
- Costs 24% to 70% less to install
- Is only 1/100 the weight of glass
ETFE is often called a miracle construction material because:
- ETFE is strong enough to bear 400 times its own weight
- ETFE can be stretched to three times its length without loss of elasticity
- ETFE can be repaired by welding patches over tears
- ETFE has a nonstick surface that resists dirt
- ETFE is expected to last as long as 50 years
ETFE does have disadvantages, however.
- ETFE transmits more sound than glass, and can be too noisy for some places
- ETFE is usually applied in several layers that must be inflated and require steady air pressure
- Working with ETFE is too complex for small residential projects
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