Hi, I just relocated to Nola. And I am a first time home owner. The house I bought had a single car unattached garage. I cleaned it out and tore out old cabinets and shelves. I discovered termite damag. Had it treated and repaired. Had it rewired and electrical updated. So my next project is to insulate and put up drywall. I am wanting to do just the walls and leave the ceiling and rafters open. I know it will not keep it warm or cool. And I understand but the wood is so beautiful I don't want to cover it. So I am open to help on how to do theinsulating. Do I put up like a plastic barrier before I put up the insulation? Or do I do it after? What kind of drywall would be best to keep moisture out it isNew Orleans and really humid here.