The inner roof, consisting of coated PTFE fabric 

BC Place, Vancouver
architects: Stantec Architects; structural planning: sbp, Geiger Engineers; general planner: PCL Constructors; membrane construction: Hightex

The inner roof, consisting of coated PTFE fabric BC Place, Vancouver architects: Stantec Architects; structural planning: sbp, Geiger Engineers; general planner: PCL Constructors; membrane construction: Hightex

Image credit: Hightex