The refurbishment of the concourse to Cannon Street Tube Station utilised a series of conic canopies to form the new ceiling. The canopies conceal a raft of unsightly services in the ceiling void giving a uniform appearance with an interesting filigree character from the flying struts and associated cables. Silicon glass fabric was selected for its fire rating and translucency, which allows the cones to act as diffusers for the luminaires behind. Tony Hogg Design developed, engineered and detailed the membranes and their supporting structure.