I had planned (and created) to rest the panels atop 1" blue foam panels in which I drilled a regular panel of 4" diameter holes along with fore aft air channels.
I know the foam is not a heat sink but do you think the amount of air in the holes would offset heat damage ?
The thermodynamicist in me thinks this isn't a great idea. The blue foam is a really good thermal insulator. So you'd have hot spots where there's foam, and cool spots elsewhere. If the panels have good thermal conductivity (I have no idea), it might be ok though.
The aerodynamicist in me says put the panels as far aft on the roof as possible, so they are in the thicker boundary layer. The solar designer in me says "will there be more shade on that end? Probably not."
All of this is pure theory, and possibly wrong!
Edited by rubberlegs, 28 November 2022 - 05:15 PM.