How many stories or fewer should residential buildings be for the RMS to apply?

The appropriate choice for how many stories residential buildings should have for the RMS (Radon Measurement Service) to apply is three stories or fewer. This guideline is based on the understanding that most standard radon measurement protocols and mitigation strategies are specifically designed for smaller residential structures, typically those that are no taller than three stories.

Buildings with more than three stories may present unique structural and mechanical challenges that could complicate the effectiveness of radon measurement techniques or mitigation systems. For instance, airflow dynamics could differ significantly in taller buildings, which could affect how radon gas accumulates and moves through different levels of the structure.

In contrast, options that suggest one story, two stories, or four stories or fewer do not align with established guidelines concerning the applicability of radon measurement services in residential settings. While they may represent valid considerations in different contexts, they do not adhere to the specified limitations of three stories or fewer, which is a standard used to ensure safety and effectiveness in radon mitigation strategies.