124 - "Post-Frame" Buildings & Rim Joist Riddles

You say Post-Frame, I say Pole Barn or Barndominium...Yikes. The boys beat up on this topic when we move utility-grade agricultural weather-sheltering buildings (pole barns) to fully-conditioned homes. Aesthetic questions aside, there is solid building science to consider here. And speaking of building science, how do we insulate and air seal rim joists in a way that keeps them dry and durable? This topic takes us from spray foam and capillary breaks to ZIP-R and six-sided containment of interior air-permeable cavity insulation. Oh my. And once again, Steve manages to make us giggle with his closing wordplay.

Pete's Resources:
1. Wikipedia: Barndominium (Who knew?) - https://en.wikipedia.org/wiki/Barndominium
2. "When a Barndominium Won't Do, Try a Shouse:" https://web.archive.org/web/20241224031656/https://www.nytimes.com/2024/12/19/realestate/barndominium-barndo-shouse.html
3. EERE "Insulate Rim Joist:" - https://www.energy.gov/sites/default/files/2022-06/job-aid-12-2_insulate-rim-joist_0.pdf
4. BSI-128: Designing for Floods - https://buildingscience.com/documents/building-science-insights/bsi-128-designing-floods
5. BSC Information Sheet 408 - https://www1.eere.energy.gov/buildings/publications/pdfs/building_america/critical_seal.pdf