Which of the following options most accurately describes fastener maintenance and repair procedures in low slope roofing systems with a built-up roofing?
1) Regular inspection and replacement of damaged fasteners is necessary to ensure the integrity of the roofing system.
2) Fasteners should be tightened periodically to prevent leaks and ensure the stability of the roofing system.
3) Fasteners should be coated with a protective sealant to prevent corrosion and extend their lifespan.
4) All of the above.