Exterior Edge Insulation for Existing Foundation Slabs Description Guide describing how to install slab edge insulation when retrofitting existing slab-on-grade foundations.
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.
Water Management of Existing Crawlspace Floor Description Guide providing information about treating bulk water drainage issues and moisture control measures in existing basements and crawl spaces.