Floor Above Unconditioned Basement or Vented Crawlspace Description Guide describing how to air seal and insulate the floor above an unconditioned basement or crawl space.
No Vapor Retarders on Interior Side of Air-Permeable Foundation Insulation Description Vapor retarder plastic should not be installed over fibrous insulation on basement or crawlspace walls unless rigid foam or spray foam is installed directly against the concrete, behind the blanket insulation.