Rigid Foam Board Interior Insulation for Existing Foundation Walls Description Guide describing how to insulate closed crawlspace walls and band joist areas with rigid foam board insulation.
Water Management of Existing Basement Floor Description Guide describing how to retrofit an existing basement floor or slab to reduce moisture issues.
Vertical Radon Ventilation Pipe Description Guide describing how to install a radon-mitigating vertical ventilation pipe in new and existing homes with various types of house foundations.
Insulation for Existing Crawl Space Floors Description Guide describing how to upgrade a crawlspace floor in an existing home by adding insulation.
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.