What is the main advantage of sealing foundation openings in radon mitigation?

Sealing foundation openings is a crucial step in radon mitigation, primarily because it prevents radon from entering the building. Radon is a colorless, odorless gas that can seep into homes through cracks in foundations, gaps around pipes, and other openings in the structure. By effectively sealing these openings, the overall entry points for radon gas are significantly reduced, leading to lower concentrations of this harmful gas inside the home.

While some benefits such as increased energy efficiency and potentially enhanced property value might result from improved sealing measures, the core purpose of sealing in the context of radon mitigation is to eliminate or minimize the pathways through which radon can infiltrate. This action directly addresses the health risks associated with radon exposure, aligning with the primary goal of protecting occupants within the home from potential radon-related health issues.