ETFE film ETFE is designed to have high corrosion resistance and strength over a wide temperature range. ETFE film is self-cleaning (due to its nonstick surface) and recyclable. The roof of the greenhouse being offered is constructed from ETFE plastic film. ETFE is 94 % light transparent. This is 4-5 % more than normal glass used for greenhouses or P.E. foil. F-clean film is also: 1. Dirt Resistant 2. Fire Resistant 3. Low Light reflection 4. Anti-drip (low-condensation) 5. Light-weight and therefore requiring a lighter structure. 6. High Durability (guaranteed for 10 years) 7. Capable of withstanding high snow loads 8. Tearing resistant 9. High elasticity