I have a greenhouse high tunnel that is going to need a new cover. The previous cover lasted a few years beyond its 10 year recommended use but was pricey.
I have wondered about using metal roof panels which are 12’x3’ and I would use them horizontally. I would have doors and vents on the end. Has anyone tried this before and did it work out for you? Both options are pricey but I think the metal would last longer. With the current cover, the tunnel has had a heavy snow/ice load and did fine. It has also done well in heavy winds and is anchored into the ground.
Thanks!