Hi all! I’ve been slowly remodeling an old house in New Orleans and am a bit stumped on how to insulate the walls. My wall assembly from outside in is: 1. Cypress siding 2. 1/4 plywood strapping (for small rainscreen) 3. 30# tar paper 4. Osb Now I am considering two insulation options 1. Rockwool followed by vapor open Housewrap as interior air barrier or 2. 3 inch Polyiso with the fiber facing cut and cobbled into the bays set on 1/2 rippers For an additional drying space between sheathing and the polyiso Then reinstalling the original 1/2 heart pine wall covering. I’ve seen people insulate then install drywall as air barrier with wood paneling on top of Sheetrock but I’ve been way too much moldy Sheetrock and soggy batts down here and am looking for a better way! Any other builders in the south with similar woes? Thanks and I appreciate any insight! Frankie

https://www.buildingscience.com/documents/digests/bsd-012-moisture-control-for-new-residential-buildings