Keep my garage moisture free

Insulate and climate control.
I recently had my residential 3 car garage, also in NC, sprayfoamed, during the new construction.
Upgraded the garage doors to the insulated type. Have to Sheetrock over the cured foam for the fire rating.
The best thing about it is now I can Cool and Heat with a 12,000 BTU split AC unit set up, for around $900.