Interesting proposal for use of an alternative material for components in a growing industry.
It will be important to understand how building codes affect your design (weight-bearing structure, trapped rainwater, interactions with other equipment, such as HVAC, that typically get installed on roofs). How does the weight of NikeGrind compare to other films or molded components?
You discuss the use of NikeGrind material for the containers, are there opportunities for circular economy components for the rest of the system (pumps, channels, tubing, fittings, sensors, controls, etc)? Perhaps some reuse from other industries?