Which of the following methods is part of open drying systems?

Using ventilation is a key component of open drying systems because it allows for the movement of air, facilitating the evaporation of moisture from materials in the affected area. In open drying systems, the primary goal is to expedite the drying process by increasing the circulation of air, which helps to lower the relative humidity. This process can effectively reduce the moisture content in structures and materials, promoting faster drying.

Ventilation works by bringing in drier air from the outside or pushing humid air out. This continuous exchange of air helps maintain a lower humidity level inside the space, further enhancing evaporation rates from wet surfaces. It is crucial in open drying systems because it utilizes natural airflow rather than relying solely on mechanical devices to manage moisture levels.

Other methods like mechanical dehumidification, sealing windows, and insulating walls focus more on containment and control of moisture rather than utilizing airflow to promote evaporation, which is why they are not considered part of open drying systems.