As you can see it used to have some plastic covering. The frame is held together with (sorta brittle) plastic pins but my main focus is how I’d re-cover the frame in plastic:
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What sort of adhesives should I consider for outdoor metal-plastic bonding?
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Is adhesive and soft (clear) plastic even a good idea?
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Have any of you done something similar?
Polytunnels seem common enough to legitimise plastic as a covering material. And, if it’s thick enough to withstand the weather, then the plastic could be wrapped around the frame and riveted back to itself. That’d avoid problems with glue/clamping/etc.
That’s what im thinking too. Lighter plastic would make it wasier to fit the frame. I’ll see what sorta rivets you can get (or maybe buttons) since my SO knows a lot of seamstressing stuff