Check out the rainbow roof

During the colder months, the small plants on top of the University Campus Suffolk's were a vibrant green colour, but now they have changed to a deeper burgundy shade.

CHECK out this traffic light roof!

During the colder months, the small plants on top of the University Campus Suffolk's were a vibrant green colour, but now they have changed to a deeper burgundy shade.

And with even more sunshine over the summer, the plants are set to change colour again and become even brighter. So it seems they change as often as traffic lights.

The 'sedum', which is made up of 18 different plant varieties, was planted by Bauder for insulation, to aid water catchment, and provide a habitat for small wildlife. It is low maintenance as does not need to be replanted and adapts to most climates. The plants include mosses and herbaceous plants.

Tony Russell, UCS' head of facilities management, said: “Because of where we are, the type of vegetation is wind, frost and drought resistant. The plants will cope with several changes of temperatures and they will change colour through different seasons of the year. If we get a sustained period of sunshine, the flowers should get brighter.”