I’m adding a covered porch to a post frame home. The porch is 16×32 with metal roof, and a metal ceiling under the porch. All uninsulated. It will have  vented ridge and soffit. I am wonder if I need to do anything to prevent roof condensation on the bottom of the steel roof. I was hoping the vented ridge and soffit would prevent the condensation but now I am wondering if I should plan some other method of condensation prevention.