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.
Reduce Pest Intrusion Description Guide describing ways builders can block off entry points and otherwise make homes inhospitable to all manner of pests.
Insulating Existing Floor Overhang Description Guide describing how to upgrade a wall with a floor overhang (or cantilever) on an existing home by adding insulation (rigid insulating sheathing and/or closed-cell spray foam) and air-sealing.