Fire, likely caused by an old exhaust fan, damaged the roof of the Thrivent building on Second Street, Valley City, Wednesday.
Valley City Fire Department responded to the call at about 2 p.m. Wednesday after reports of smoke in the building. Occupants of the building reported light smoke in the businesses on the main floor, with heavier smoke in the second floor apartments. Firefighters had difficulty, however, finding the source of the smoke, said VCFD Chief Gary Retterath, either by visual inspection and using thermal imaging, as the fire was contained to an area in the roof.
The fire was likely smoldering since Tuesday, said Retterath, and appeared to come from an old exhaust fan that still had power and was discovered after firefighters removed a portion of the roof. Because the roof was well-insulated, the fire likely did not receive enough air to spread.
Crews spent over three hours at the scene.