On a hot Saturday evening PCD set off the tones for a 2nd alarm fire on a three story commercial appartment bulding in Urbandale with fire showing through the roof. JFD was due with C3900 and T3960. Both units went en route in minutes. When they arrived C3900 was assigned operations and T3960 went to work with elevated master steam. The fire went to 4 alarms before the fire was knocked and put out. All units cleared late into the night.