To effectively control moisture in a home, what must be done in addition to using a vapor diffusion retarder?

Using a vapor diffusion retarder is an essential step in controlling moisture, but it is not sufficient by itself. To effectively manage moisture within a home, sealing air gaps plays a critical role. Air gaps allow unconditioned, moist air to enter the home, which can lead to condensation and increase humidity levels. By sealing these gaps, you prevent outside humid air from infiltrating the living spaces, ultimately reducing the risk of moisture-related issues such as mold growth, wood rot, and damage to insulation.

In addition, sealing air gaps contributes to better overall energy efficiency by minimizing drafts that can lead to uneven temperatures and increased energy consumption. While heating systems, air conditioning, and ventilation can also help manage indoor climate, they do not address the uncontrolled entry of moisture-rich air in the same way that sealing air gaps does. Thus, combining a vapor diffusion retarder with proper sealing techniques creates a more comprehensive approach to maintaining a dry and healthy indoor environment.