In this episode of The Build Show, Jake Bruton takes us to Part 2 of his multi-part deep dive into insulation—starting from the ground up with foundation insulation. From conditioned crawlspaces to basements and slab-on-grade details, Jake breaks down the common myth that “the earth’s stable temperature means you don’t need insulation,” and explains why true high-performance building is about total thermal control. He walks through what building code requires for floors, basement walls, crawlspaces, and slabs, then shows how his team approaches foundation assemblies for better comfort, durability, and efficiency. You’ll also hear Jake’s real-world insight on insulation placement (inside vs. outside), material choices like XPS, EPS, GPS, mineral wool, and spray foam, and the importance of keeping insulation protected from pests, moisture, and damage.

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