What is the recommended practice for fastener maintenance in single-ply systems?

The recommended practice for fastener maintenance in single-ply systems involves removing and replacing fasteners about 3 inches or more from their old location. This approach is essential for ensuring the integrity and longevity of the roofing system.

When fasteners are left in place without maintenance, there can be issues such as rust or material fatigue over time that may compromise the holding strength of the fastener. Additionally, fasteners that are reused without being replaced can create points of weakness where leaks might develop, leading to potential water intrusion.

By replacing the fasteners at a distance from the previous holes, this practice minimizes the risk of further damage to the roofing membrane and prevents existing damage from affecting the new installation. This distance allows for a new, reliable seal and ensures that any weaknesses associated with the old fastening points do not compromise the integrity of the roof.

Overall, this method promotes a more stable and watertight roofing system, which is crucial for the effectiveness of single-ply roofing applications.