Condensation in joists in flat roof

[Luke Dilorenzo]

Just curious. I believe I have picked the route I’m going to take however I wanted others opinions before pulling the trigger. Like the title says, roof is flat TPO style with no crawl/attic. Due to poor ventilation moisture has accumulated in the joists/purlins. One spot habitually shows signs of moisture on drywall ceiling. (Not a lot, spotting). I planned on putting truss and shingle on in the future however did not expect this so soon.

I plan on basically “running till the wheels fall off” so to speak (patch drywall as needed) until I can work the money to do the full truss and shingle show. Roof is only 8 years old. Curious if other would handle this the same I plan to.

Thanks in advance!