Protecting subfloor over crawl space from moisture

We have a 2-story addition over pier-and-beam that we have just built attached to an existing 1-story slab foundation home.We’re nearing completion (foundation, framing, roof, drywall, rough electric and plumbing… We have a 2-story addition over pier-and-beam that we have just built attached to an existing 1-story slab foundation home.We’re nearing completion (foundation, framing, roof, drywall, rough electric and plumbing…Read MoreGreenBuildingAdvisor