The last time a Grand Prix was abandoned due to heavyrain was in Australia in 1991 and it is only the fifth time in F1 history that half points have been awarded.
The building's steel lattice roof collapsed after a night of heavyrain and wind, but the council's building control officer Paul Dunstall said at the time he did not believe the weather was to blame.
The steel lattice roof collapsed about 04:30 GMT after a night of heavyrain and wind, but the council's building control officer Paul Dunstall said at the time he did not believe the weather was to blame.