Many conflicting articles on GBA about vapor retarders

Many articles on GBA suggest vapor barriers are no longer needed if the drywall layer is fully air sealed.   However, many other articles tout the importance of “smart vapor retarders… Many articles on GBA suggest vapor barriers are no longer needed if the drywall layer is fully air sealed.   However, many other articles tout the importance of “smart vapor retarders…Read MoreGreenBuildingAdvisor