Which of these most accurately describes fastener maintenance and repair procedures in low slope roofing systems with built up roofing?

The most accurate description of fastener maintenance and repair procedures in low slope roofing systems with built-up roofing is that widespread fastener back-out may indicate a need for re-roofing rather than patching. In built-up roofing systems, fasteners are critical for securing various components, and if they begin to back out extensively, this can signal underlying issues with the integrity of the roof. When fasteners are not holding properly, simply patching the areas affected may not address the root cause of the problem. This situation often implies that the entire system is at risk and potentially requires re-roofing to ensure long-term protection and performance.

While other options discuss aspects of maintenance, they do not adequately capture the significance of extensive fastener back-out. Frequent replacement of fasteners or annual inspections for rust might be part of general maintenance but do not address the critical situation of widespread failure. Similarly, relying solely on adhesive for repairs doesn't provide a comprehensive solution when the integrity of the fasteners and underlying roofing material are compromised.