That is a big one! We had several football sized ones but not that big. Are you sure it was not a bees nest. I heard builders found a bees nest about as big as that one in the rafters of a house near us. The bees had died an the honey had started to rot and liquify and was dropping trough the ceiling.
GrendelsMum is right. Wasps never reuse their nest because bacteria build up. However, at the end of the summer the fertilised Queen flies off and creates a Queen Cell which is usually high up in the rafters and about the size of a golf ball.
She stay there all winter then comes out and starts buildig a new nest and laying eggs.