Roof eaves are the lower edges of a roof that extend beyond the exterior walls of a building. They form an overhang that serves both functional and architectural purposes in roofing systems.
The primary function of eaves is to direct rainwater away from the building’s walls and foundation. By extending beyond the structure, they help prevent water infiltration, erosion, and moisture-related damage to exterior surfaces.
Eaves also play a role in shading windows and walls, reducing heat gain in warmer months and improving overall energy efficiency. In colder climates, properly designed eaves help manage snowmelt runoff and prevent ice buildup near the foundation.
Structurally, eaves may include soffits and fascia boards. Soffits provide ventilation to the attic space, while fascia supports the lower edge of the roof and provides a mounting surface for gutters.
Poorly designed or damaged eaves can lead to water intrusion, rot, and pest entry, making them a critical component of long-term roof performance and building protection.
