i have always though there should be a product that you can cover your roof with in the summer thats white or foil like to deflect the suns heat.. I have a 2000 sq foot home all one floor so its a HUGE roof.. if i could make it mirrored or white instead of black it would save a ton of cooling..
Maybe polished aluminum sheets or mirrored plexiglass like materal .. it would be spendy as all get out..
__________________
|