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.
Insulation for Existing Crawl Space Floors Description Guide describing how to upgrade a crawlspace floor in an existing home by adding insulation.
Air Sealed, Insulated Basements Description Guide describing how to insulate a basement to improve the overall thermal performance of the building and provide more dry, usable conditioned space for home occupants and HVAC equipment.
Radon Fan Description Guide describing how to install a radon mitigation fan with various types of house foundations.