The plywood ribs would be the internal frame, with polycarbonate panels on the outside.
Yes, this type of construction has been used. It would be used as a greenhouse in the spring and summer.
During the spring I'm going to start on a new project that I could do with some advice.
I'm going to build a greenhouse! Yikes. Anyway, due to the nature of the place I live (Norway), and at the moment we have 1m of snow in the garden the type of construction needs to take this into...