Pier & Beam Floor Insulation – polyethylene air barrier?

Finalizing floor insulation details in Zone 2A, pier and beam, totally open crawlspace. Rim joists were insulated during framing. I have a lot of 3″ reclaimed felt-faced polyiso on hand… Finalizing floor insulation details in Zone 2A, pier and beam, totally open crawlspace. Rim joists were insulated during framing. I have a lot of 3″ reclaimed felt-faced polyiso on hand…Read MoreGreenBuildingAdvisor