Easiest, fastest rubber roof installation for any DIYer. No skills are needed, and it will last 20-30 years. You can almost install this over any surface.
Turbo Poly Seal – https://bergstromm.com/

Chapters:
0:00 How to Install a Rubber Roof
0:35 Parapet wall in bad shape
1:05 Screw down surface
2:48 Laying down base sheet
3:53 Laying down the Cap sheet
4:18 Prep parapet wall for membrane
5:19 Installing membrane over parapet wall
8:49 Vent flashing
9:56 Results after 3 years