It happened just around 5 p.m. at the building located at 110 Country Club Road.
Fire crews were able to trace the fire to the attic's insulation and structure in the northwest end of the building's center section. Fire and smoke damage were limited to the attic and the section of the fourth floor directly below the fire.
Cobb Hall is coed and houses 380 residents. It was built in 1952 and renovated in 2005. It is equipped with smoke detectors and alarms.
Most students, except those living in the northwest wing, should be able to move back in as soon as Thursday. Those living near where the fire broke out will probably be unable to move back in this semester due to the damage.
No one was injured.
The cause of the fire is still unknown.