Coop roof: transparent or opaque?

[chickensahoy96]

The problem with most plastic roofs is they discolor and become brittle over time.

The polycarbonate is better and will last longer, but in my situation was still severely damaged by falling branches from nearby trees.

My entire roof structure over the coop and run is now corrugated steel. With the walls of the run being chain link there is more than enough light penetration during those days that I don’t let them out to range (snow/heavy rains) and rest assured that nothing is going through the roof nature or predator.

Pics?