Almost all Commercial Flat Roofs have this problem one time or another.
It would be wise for a Building Maintenance guy to go around and repair the Pitch Pockets. Almost every A/C unit has a Pitch Pocket and 99% of the time they cause leaks
Chapters:
00:00 Start
00:16 Leaks around Pitch pocket
01:26 Foam Insulation problem
02:21 Use SSS to seal Pitch Pocket
03:25 Conduit pipes causing Leak
04:10 Removing Tar on Conduit Pipes
04:57 SSS around wires and pipes
07:18 Results after 2 years
07:43 Me and my wife Bla Bla Bla