This module covers how to properly install windows, doors, decks, and patios to protect your home from water intrusion and mold. These junctions are especially vulnerable if not detailed correctly, so this lesson dives deep into waterproofing, flashing, and airsealing strategies that make these assemblies resilient. You'll learn how to choose high-performance windows for your climate, understand installation methods like flanged vs. flangeless, and correctly detail critical components such as sill pans, membranes, and tapes. You’ll also explore how to waterproof deck ledger boards, patio connections, and arbor mounts so water doesn’t sneak behind them and rot your walls. This is a highly detailed, practical lesson packed with visuals and step-by-step installation strategies—perfect for homeowners who want to make sure these vulnerable areas are done right.