Uploaded January 2024 | Updated September 2026, 1 hour ago

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Air sealing and insulating are essential at the rim joist connection in basements and conditioned crawl spaces, as the rim joist is the junction between many various building components, such as the mud sill, the interior framing, the subfloor, and the exterior sheathing. A range of different air sealing and insulation strategies can be used at the rim joist, such as closed cell spray foam, rigid insulation with sealants, and taped smart vapor retarders.

*Read the full article on air sealing and insulating rim joists here:* asiri-designs.com/resources-1/f/insulating-and-air-sealing-rim-joists

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