How to Control Moisture in the Chicken Coop - Without the Need for Ventilation When it comes to keeping backyard chickens, one of the biggest concerns is moisture buildup inside the coop. Many sources stress the need for ventilation, but if you keep your coop clean and use the right systems, you can maintain a dry, healthy environment for your flock without relying on ventilation at all. Step 1: Start With the Right Litter - Sand is King Using sand in your chicken coop s on