Apartment Building, Residential Damage minimized at apartment building thanks to fire sprinkler system (Madison, WI) August 3, 2013 viking210 The Madison Fire Department reported that a single fire sprinkler prevented major damage to a nine-unit apartment building the morning of August 1. Firefighters arrived to the apartment to find a small fire that had been limited by the building’s fire sprinkler. There were no injuries from the incident.