Membrane materiality

This is the material we have decided on for the membrane. What we found when playing with the material was that it created a hatched effect when overlapped with itself. The images above show what happens at 0 (no overlaps) to 4 (four times folded onto itself) , basically the effect we want happens at the first overlap onto itself, bearing in mind we need the material as light as possible for the helium to create as much tension as it can whislt balloon numbers drop throughout the event.