Oh wow! We have the typical wood one made from 4x4 posts and 2x6s for the rafters. We covered part of it with more 2x6s so we can walk on it to put a ladder on top to reach the roof of our studio, and I've ordered 10x3 foot sheets of "Galvalume" https://www.google.com/search?q=galv...h=487&dpr=1.25
roofing panels for one third of it. We're keeping another third of it open for our grape vine to cover come spring time.
Thank you for sharing, yours is very nice, and strong as an ox.