To fix roof gutter leakage, first inspect for debris blockages, cracked sections, or loose fasteners. Clear gutters of leaves and dirt, then reseal gaps with silicone or epoxy. Reinforce loose joints with metal brackets and apply waterproof sealant. For severe damage, replace corroded sections or install gutter guards to prevent future clogs.

Gutter leaks often stem from clogged drainage systems, which can cause water to pool and damage walls or foundations. According to the National Association of Home Builders, clogged gutters account for 40% of gutter-related water damage, costing homeowners an average of $1,500 annually. Additionally, improper installation or aging materials contribute to 30% of leaks, as reported by the Journal of Building Engineering. Regular maintenance reduces repair costs by up to 60%, while proactive measures like gutter guards lower long-term expenses by 25%. Water damage from gutters can escalate into structural issues, with 15% of flooded basements linked to gutter failures, per the Insurance Institute for Highway Safety. Addressing leaks promptly prevents mold growth, which affects 85% of homes in humid regions, as noted by the Environmental Protection Agency.