The Blue Building needs a new roof, but it is unlikely to receive one.The city Building and Grounds Committee met Tuesday to discuss its condition, after city administrator Bill Brock, Public Works Department assistant director Brad Hennessee and Alderman Steve Harvey, chair of Building and Grounds, took a walkthrough of the building.“The roof, in general, needs to be replaced,” said Brock. “It’s gone. We have two roofs on that system.