What issues can arise from moisture intrusion in roofing systems?

Moisture intrusion in roofing systems can lead to serious problems, primarily resulting in rot, mold, and structural damage. When moisture penetrates the roofing materials, it creates an environment conducive to mold growth, which can compromise indoor air quality and pose health risks to occupants. Additionally, prolonged exposure to moisture can weaken structural components, leading to rot in wooden elements and potentially resulting in expensive repairs or replacements. This can also affect the integrity and lifespan of the roofing system itself, making timely detection and remediation critical. The other options do not represent realistic outcomes of moisture intrusion; rather, they suggest beneficial traits that are not applicable in the context of water penetration.