We insulated the garage door - it gets direct sunlight most of the day. Bought the insulation kit from Romac in Wildwood. (They installed the garage door when the house was built.) Call them first to check availability, they told me they sometimes run out - with the recent heat they are probably selling well. The job is a little tough, you have to remove all of the horizontal pieces and even then the insulation is a tight fit.
I have thought about doing the attic but have not done so yet. There is a lot of heat in the garage and I'm sure it impacts the efficiency of the AC unit.
We have an AC on wheels unit. Tried it a few times. If you don't turn it on fairly early in the day it only provides a cold breeze but doesn't effectively cool the area. Maybe with the attic insulated it would do a better job.
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New York, California, Pennsylvania, Florida
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