What is the most important step to control moisture in the home?

Controlling air flow and leaks is a critical step in managing moisture in the home because it directly influences how air and moisture move in and out of living spaces. By addressing air leaks, you can effectively minimize the entry of outdoor air, which often carries moisture, pollutants, and can lead to condensation within the building envelope.

Proper air sealing helps to stabilize indoor humidity levels by preventing moist outdoor air from infiltrating and allowing conditioned, drier air to escape. This control of air flow not only affects moisture levels but also contributes to energy efficiency and overall comfort within the home.

While sealing windows and doors, using dehumidifiers, and insulating walls and ceilings are all important aspects of moisture control, they typically fall short without first adequately addressing the movement of air. For instance, sealing windows and doors may help reduce drafts, yet if there are other avenues for air leakage, such as gaps in walls or around ducts, moisture can still impact the home adversely. Thus, focusing on controlling airflow and leaks is foundational for a comprehensive approach to moisture management.