Insulating metal building! – GreenBuildingAdvisor

Insulating a metal building with metal studs on a metal trailer bed and a metal exterior. Figuring out insulation is driving me insane. thermal bridging, air gaps, vapor barriers. I am in zone 2, North Fl. There is already a subfloor in on the building (on the metal trailer frame). The frame portion of the walls are incredible thin and weirdly gridded. Feels like a lost cause, or that reframing with wood studs, or using closed cell, is my only option? any advice is great. its 8×22. Will be using AC and Heating, and animals will live in this space.