Hot tin roof

[Pilgrim]

I helped a friend of mine build a roof on his shed using a patchwork cutoff pieces of roofing that were all different colors. It turned out to be a great unplanned experiment in heat absorption. The pieces that were any color other than white or off white were much hotter in the sun. I was amazed that even a very light green and a light tan seemed many times hotter than the white ones. The darker ones were pretty much too hot to touch during mid-day. So it may not solve all the heat transfer problem but its worth noting that white or off white will probably conduct much less heat.