Had a retractable screen company come out. Price for 2 car was over $3000. So never mind that.
He said he has insulated garage door, put vents in the doors, insulated the attic.
He said it won't make much difference if the garage is facing the sun side. 94 degrees outside. 94 degrees will get sucked in anyway.
So my guess is a air conditioner portable unit will only make it 92-94 degrees. It would have to be a wall unit to cool the garage down enought to make a difference. Unfortunately a lot of the homes in the villages don't have windows or doors or vents.
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