How should seams and edges be treated in membrane installation?

In membrane installation, it's crucial to seal seams and edges to resist air movement effectively. This sealing prevents the infiltration of air and moisture, which could undermine the overall effectiveness of the membrane. Proper sealing also helps maintain the integrity of the structure by minimizing potential pathways for radon gas or other harmful substances to enter living spaces.

By ensuring that seams and edges are sealed, the system becomes more efficient in its function—whether it’s for radon mitigation or another purpose—by creating a continuous barrier that enhances the performance of the membrane. This approach contributes significantly to the longevity and effectiveness of radon reduction systems or moisture control measures, aligning with best practices in environmental health and safety standards.

Other options suggest different treatments that would not effectively manage air movement or maintain the integrity of the installation. Leaving seams unsealed, checking them for damage without further action, or attaching them loosely would all likely compromise the system's performance, allowing for air and potentially radon to bypass the protective barrier that the membrane is supposed to provide.