Central Avenue, Highway 65 and the apartment corridors
Central Avenue is the main commercial street, with Highway 65 and Interstate 694 nearby, and many of the apartment buildings and small shops sit along these corridors. Those buildings often have flat or low-slope roofs with drains, parapets and rooftop equipment, which behave very differently from the pitched shingle roofs on the side streets.
Lots on residential blocks are narrow, with garages and alleys, and parked cars line the curb. Staging a dumpster and a delivery may need planning around the alley or street. Duplex and apartment roofs are shared, so one leak can affect more than one household, and it is common to look at the whole roof rather than patch one unit's ceiling.

