What is the function of eaves in roofing systems?

Eaves play a critical role in roofing systems primarily by extending beyond the walls of a building and directing rainwater away from the structure. This function is essential for preventing water from dripping directly down the walls, which can lead to water damage, erosion, or deterioration of building materials over time. By directing rainwater away from the foundation, eaves help maintain the integrity of the building and reduce the risk of costly repairs due to water intrusion.

Moreover, the design of eaves can incorporate drip edges or gutters that further assist in channeling water away from the roof and foundation. This makes them a vital component not only for functionality but also for the long-term durability of the structure. While eaves may also contribute to aesthetic appearance and can support some roofing elements, their primary and most essential function is related to water management and protection of the building’s structural integrity.