The fire was in the 800 block of Headrow Terrace.
It took firefighters about 20 minutes to bring the fire under control.
Firefighters say the cause was clothes in a dryer that caught fire, eventually spreading to the attic.
No one was injured, but a family of five are now displaced. The American Red Cross arrived to assist them in finding a place to stay.
Firefighters say the damage is estimated to be close to $55,000.