I'm also interested to see how this hods up in hotter weather. What part of the country are you in?
Located in Florida
Maybe switch out the dark colored tarp to a white tarp to reduce the sun's radiant heat.
Ahhhh I totally didn't think about that. The other side of the tarp is gray
I do have those reflective emergency blankets that are really thin and reflective but I don't want to have to deal with management complaining about a bright and shiny ball of foil reflecting light.
If things go south, I will try to change it.