Vapor barrier question for a cathedral ceiling

In my pretty good house renovation I have cathedral ceilings in two rooms.  Starting at the roof, the layers are as follows:1) Steel roofing material2) Furring Strips3) moisture barrier4)Plywood/OSB deck5)… In my pretty good house renovation I have cathedral ceilings in two rooms.  Starting at the roof, the layers are as follows:1) Steel roofing material2) Furring Strips3) moisture barrier4)Plywood/OSB deck5)…Read MoreGreenBuildingAdvisor