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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 apply water management strategies to below-grade walls.

Guide describing how to upgrade a crawlspace floor in an existing home by adding insulation.

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 different options for providing seismic and thermal resistance for homes with 'cripple' wall crawlspace foundations, which are known for their instability.

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 create a capillary break at all crawlspace floors using polyethylene sheeting to manage moisture in crawlspaces.

Guide describing how to air-seal sill plates in single-family homes and multifamily buildings.

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

Guide describing how to air-seal and insulate the floor above an unconditioned basement or crawl space.

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

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 a radon-mitigating vertical ventilation pipe in new and existing homes with various types of house foundations.

Guide describing how to install a capillary break to help manage moisture in foundations.

Guide describing how to help drain water away from the perimeter footing.