The Rock County Emergency Dispatch Center reports the call came-in about 1:00 a.m. Friday at a property in the 10,000 block of West Wheeler Road.  Firefighters from Janesville, Footville, Orfordville and Brodhead all responded to assist.  Officials says the first responder on the scene reported the building involved was already on the ground.  Crews were on-scene for close to four hours.