Why We Love Open Cell Foam 🏠 | Energy Savings & Air Quality Explained! Let’s talk Open Cell spray foam one of the best ways to achieve comfort, savings, and cleaner indoor air. Here’s why we use it 👇 🧱 In 2x6 walls, Open Cell delivers the same results as Closed Cell in 2x4 walls, but at a lower cost giving you a better return on investment. 🌬️ You’ll get an air barrier at about 3½ inches, which stops outside air movement and boosts indoor air quality. 🔥 Heat moves in three ways conductive,