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Guide describing installation of sump pumps in the basement or crawlspace of a home.

Guide describing different options for providing seismic and thermal resistance for homes with basement foundations, crawlspace foundations, or crawlspace foundations with a "cripple" wall.

Guide describing how to design or retrofit a crawlspace to reduce the risk of damage during a flood event.

Guide describing how to install a radon mitigation fan to actively remove radon from the home.

Guide describing how to install slab edge insulation when retrofitting existing slab-on-grade foundations.

Guide describing Installing blanket fiberglass insulation on the interior walls of a conditioned, unfinished basement as an alternative to best practice solutions.

Guide describing how to install a radon-mitigating vertical ventilation pipe in new and existing homes with various types of house foundations.

Guide describing how to insulate a new foundation wall or an existing foundation wall by adding rigid insulation to the exterior side.

Guide providing information about treating bulk water drainage issues and moisture control measures in existing basements and crawl spaces.

Guide describing how to retrofit an existing basement floor or slab to reduce moisture issues.

Guide describing how to insulate an existing foundation wall by adding spray foam insulation to the interior side of the wall.

Vapor retarder plastic should not be installed over fibrous insulation on basement or crawlspace walls; rigid foam or spray foam should be installed directly against the concrete, behind the blanket insulation.

Guide describing how to install a capillary break under a slab foundation using either polyethylene sheeting or rigid insulation installed over aggregate or over sand and geotextile matting.

Guide describing how to insulate an existing slab floor by adding rigid foam insulation over the slab then installing a floating subfloor.

Guide describing principles of insulating and air sealing band joists as a stand alone energy upgrade, or as part of creating a closed crawlspace.

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.

Guide describing how to insulate closed crawlspace walls and band joist areas with rigid foam board insulation.