The roof not seen to the left in this video drains into a gutter, which drains into this downspout, which drains onto this low roof...
All is meant to then drain at a perimeter scupper on the other side of the roof.
The tree branches from the tree next door almost completely cover this low roof. Once the leaves fall, they have no where to go - covering the entire roof surface and causing blockage at the final drainage point.
Yes, that was a shoe.
The amount of extra weight with saturated leaves, tree branches, and ponding water (which will freeze and thaw) - may be detrimental to the existing roof structure, and puts the tenants, equipment, and product below in a vulnerable spot.
Do you know the condition of your flat roof?
Call Matt at 519.400.4022 to schedule an on-site consultation.