Inflatable or tensile membrane roof [RFA1]

An inflatable roof uses fabric chambers pressurised with air to form a self-supporting structure.

A tensile membrane roof is made of stretched fabric, usually stretched in two directions to form a tensioned surface. Examples of tension membranes include polyester coated with PVC and glass fibre coated with Teflon.

BC Place Stadium in Vancouver, Canada has a tensile membrane roof; the roof is covered by a semi-transparent plastic material (ETFE) (S. Brzev)

Canada Place in Vancouver, Canada, a tent-like structure that resembles a sailing ship, has a tensile membrane roof (S. Brzev)