Part 1 of Foundations - https://buildshownetwork.com/contents/7121 Build Science™ 401 kicks off by redefining the building envelope as a single, continuous system—where air, water, vapor, and thermal layers must stay aligned from the ground up. Using a real-world ICF foundation, Matt Risinger and Steve Baczek break down how integrated insulation, rebar, keyways, and monolithic pours work together, paired with smart water management strategies like bagged footings, insulated gravel beneath slabs,