“…steel (that’s not corroded)”… Ah, there’s the rub. I have lived in the comparatively DRY and NON=Saline climates of the western mountains most of my life. During my increasingly frequent visits to that sweltering, acid filled place you call “Florida” I’ve been VERY, VERY impressed with how rapidly steel structures corrode. Hangars with not all that many years standing, hydroswing or bifold doors, steel construction, thick concrete pads, and TREATED steel structure show corrosion where the darn things are fastened to the cement pad! That big cement/rebar constructed condo on the coast that crumbled and collapsed a few short years ago is an abject lesson for us all… Florida’s climate will triumph over engineering. All it takes is not-all-that-much TIME and EXPOSURE. Your Rapsody about new codes overlooked that fatal flaw that is, at best, not a permanent fix to the evil stew where you and millions of others reside.