I used ridged poly panels for cold frame covers and they make soft foam insulation that just fits the curves. Maybe something similar is available for your panels?
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I used ridged poly panels for cold frame covers and they make soft foam insulation that just fits the curves. Maybe something similar is available for your panels?
Yeah I used a soft foam and stuffed it between the ridges, its the stuff you fill in gaps of a window mount AC unit and seemed to work well. I guess time will tell how well it holds up.
Mine is only in use from April to October and has stood up for well over 5 years. Hope yours works as well.