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.
Rigid Foam Board Insulation for Existing Band Joists Description Guide describing principles of insulating and air sealing band joists as a stand alone energy upgrade, or as part of creating a closed crawlspace.
Rigid Foam Insulation Installed over Existing Foundation Slabs Description Guide describing how to insulate an existing slab floor by adding rigid foam insulation over the slab then installing a floating subfloor.
Water Management of Existing Basement Floor Description Guide describing how to retrofit an existing basement floor or slab to reduce moisture issues.
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.