I have several solar panels
flexible plastic coated mounted to my cabintop.
I noticed the fiberglass
underneath cracked, and discolored as if burnt.
Also the panels
are hot to the touch during the day.
I'm looking at adding something under them to insulate from cabintop, maybe the corrugated plastic sheet used for signs.
Has anyone tried this.
Will is get too hot for the plastic?
Is there a corrugated sheet with bigger holes than the typical corrugated cardboard that has 2mm holes, something like 10mm?