RE: Where is your workshop
My planes are built and hang in the garage in Brisbane, Australia. The fuselages hang from the ceiling and the wings are on racks on the wall.
Moreton Bay (i.e. the ocean) is at the end of our street. Summers are very humid and hot, and the garage gets even hotter when the car is parked in there. I've never had a problem with the planes.
Good luck,
Joel