Matt and Steve analyze a 2019 modern home in coastal Climate Zone 6A; the project illustrates how climate, site conditions, codes, and client requirements influence assembly design without changing fundamental building science principles. They explain why most wall claddings need a free-draining space and how rainscreen depth affects drying potential. Matt and Steve also discuss vapor-permeable tapes and liquid flashings that maintain airtightness while supporting drying. Properly confining air-permeable insulation is another focus, as convective air movement can reduce effective R-value, particularly in colder climates. Finally, the episode highlights the importance of separating wood framing and cladding from ground moisture to improve durability and allow termite inspection.