What must be ensured regarding barriers in mold containment?

In mold containment, ensuring that barriers are sealed airtight where they meet surfaces is critical for effective prevention of mold spores from escaping the contained area. This airtight seal helps isolate the contaminated space, which minimizes the risk of mold spores spreading to unaffected areas during remediation activities. An airtight barrier not only prevents cross-contamination but also helps control humidity levels within the containment area, both of which are essential for safe and successful mold removal.

Other considerations, such as aesthetics, airflow, and whether the installation is temporary, primarily concern practicality or convenience rather than the fundamental purpose of mold containment. For instance, aesthetics do not impact the functionality of the barriers, and allowing airflow through gaps would defeat the purpose of creating a sealed environment. Similarly, temporary installations might not provide the robust protection needed during mold remediation efforts. Therefore, the focus on airtight seals is paramount in maintaining a controlled environment during mold remediation processes.