03.09.2026
- What is ETFE?
- Identity: Ethylene Tetrafluoroethylene Copolymer (Chemists like it, we call it “Light Weave”!).
- Feature: With a light transmittance of up to 95%, it welcomes the sun in, but is friendly to your skin by filtering UV.
- Lightness: 99% lighter than glass! So much so that it is as easy to carry as a few inflatable pillows.
- Why “Inflatable Cushion” Systems?
ETFE’s favorite role: Air cushion roofs! How?
- 2-4 Layer Cushions: Inflated by air pressure, these layers handle everything from thermal insulation to energy savings.
- Flexible Design: Loaded with snow? The ETFE cushion flexes and adapts, it won’t crack!
- Bonus: When it snows, the view of the white blanket on the pillows is mesmerizing.
- Performance in Numbers
| Feature | ETFE | Glass | Polycarbonate |
| Light Transmittance | 90-95% | 80-90% | 80-88% |
| Weight | 0.15–0.35 kg/m² | 10–25 kg/m² | 1.2–2.5 kg/m² |
| Thermal Insulation (U) | 1.9 W/m²K (3 layers) | 2.8 W/m²K | 3.5 W/m²K |
| Lifespan | 25+ years | 20-30 years | 10-15 years |
Footnote: 3-layer ETFE keeps the heat in like a thermos!
- The Miracles of Architecture
- Shopping Centers: Daylit spaces lower electricity bills and boost people’s morale. Think of it as “light therapy”!
- Stadiums: Illuminated with colorful LEDs, ETFE turns night matches into a light show. Bayern Munich’s Allianz Arena is the best example!
- Botanical Gardens: Ideal greenhouses for plants! Stabilizes UV, maintains heat, creates a party environment for photosynthesis.
- Sustainability & Environmental Friendliness
- Recycling: 100% of ETFE is recyclable. The star of eco-friendly architecture!
- Energy Saving: Maximum benefit from daylight + thermal insulation = up to 30% energy savings.
ETFE adds an experience to architecture, not just a material. Bending light, conserving energy and offering designers unlimited freedom, this “smart foil” is building the cities of the future today.
Next time you’re enjoying the daylight in a shopping mall, don’t forget to take a peek at the ETFE overhead!