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Foundations & Floors - Rim/Band Joist

The guides on this page have information about rim/band joists. Guides are presented in alphabetical order. Use the filters to the right of the page to further focus your search based on construction type or keywords.


Solution Center Guides


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

Guide describing how to conduct a home performance assessment before beginning retrofit projects in existing homes.

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

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

Guide describing methods for insulating an unvented crawlspace or conditioned basement with rigid foam on the interior side of the walls to provide an insulated space for HVAC equipment.