ETFE Structure at River City Amazon Court Prague
What is ETFE structure? An ETFE structure is a lightweight building system that uses transparent ETFE cushions instead of conventional glass. It provides excellent daylight transmission, reduces structural weight, and improves energy performance. River City Amazon Court Prague is a practical example of how ETFE supports contemporary urban architecture while creating comfortable public spaces.
How Does an ETFE Structure Improve Urban Buildings?
River City Amazon Court Prague combines retail, transport, and leisure areas along the Vltava River. The project demonstrates how an ETFE structure can create bright interiors while lowering the overall load on the supporting framework. Multi-layer ETFE cushions admit natural light, protect against rain and wind, and help reduce energy demand for artificial lighting.
For general information about ETFE as a construction material, see the ETFE overview by Wikipedia: https://en.wikipedia.org/wiki/ETFE.
ETFE Cushion Systems and Lightweight Roof Design
Unlike traditional glazing, ETFE cushions require significantly less supporting steel. Their flexibility allows architects to design curved roofs and transparent façades that would be difficult with heavier materials.
Transparent Building Envelope Solutions
ETFE membranes provide high light transmission while maintaining weather resistance. This creates pleasant indoor environments for visitors and commuters throughout the year.
Why Was an ETFE Structure Chosen for River City Amazon Court Prague?
Lightspan engineered, fabricated, and installed the ETFE cushion system with close coordination between architects and contractors. The result is a durable roof and façade solution that combines visual transparency with practical performance.
Free-Form Architecture Using ETFE Membranes
The material enables large clear spans and organic shapes without excessive structural weight, making it suitable for transport hubs and mixed-use developments.
Daylight and Energy Efficiency
By maximizing natural daylight, the ETFE roof contributes to lower lighting requirements while improving user comfort.
Further guidance on building performance can be found through the U.S. Department of Energy: https://www.energy.gov.
What Are the Benefits of an ETFE Structure?
An ETFE structure offers:
- Lower structural weight
- High daylight transmission
- Corrosion resistance
- Long service life
- Design flexibility
- Reduced maintenance compared with many conventional roofing systems
ETFE Architecture and Sustainable Design
Many airports, stadiums, shopping centres, and transport facilities use ETFE because it combines architectural freedom with efficient building performance.
Can an ETFE Structure Replace Glass?
In many roof and façade applications, ETFE is a practical alternative to glass due to its lower weight and ability to span large areas with minimal support.

