Plywood and polyiso sandwiched between vapor barriers?

Hi all, I have one final detail question before I can begin my exterior insulation roof install that I’m really stumped on. From the endless articles and threads I’ve read… Hi all, I have one final detail question before I can begin my exterior insulation roof install that I’m really stumped on. From the endless articles and threads I’ve read…Read MoreGreenBuildingAdvisor