If a solar screen works (like this):
http://ecorenovator.org/forum/other-...provement.html
And these 80-90 percent screens are a very tight mesh. The don't allow air to pass
like a normal screen. You need to point a big fan right at them.
I plan to remove mine, when the cooling season is over.
Even then, we rarely open those windows.
I'm pretty sure that your camo netting will work to some degree.
Depending on the amount of shadows it cast on the roof.
I don't think it's going to trap hot air inside (under the netting), if it looks anything like regular camo netting.
If it trapped hot air inside, it wouldn't be very good stuff to use in the field..