Possible? Thermal Shade Effect? Panels On Roof?
Has anyone out there plastered solar panels all over their roof and noticed a marked difference in ceiling heating? A difference maybe felt by the hand?
Forum Discussion
Yes. I have 10kw on the stick and brick roof. It is *almost* as good as a tree. Figure the panels absorb all the heat from the sun, and radiate 50% back up, the other 50% down into the roof (less convective losses). Even with the ping pong of reradiated heat between the roof and underside of the panels there is still less heat baking the insulation then before. A decent tree will be 4-5 times better at cooling, as there is no real radiation of heat from it to the roof, just OAT's.
