What is the name given to the bottom of a roof slope?

The term used to identify the bottom of a roof slope is the eave. The eave serves as the overhang at the edge of the roof, extending beyond the walls of the building. This design is crucial for directing rainwater away from the foundation, preventing water damage, and improving aesthetics. Additionally, the eave often includes features like gutters which collect rainwater and funnel it away from the structure.

Understanding the function of the eave and its placement in the overall roof structure is essential. This helps ensure proper drainage and enhances the longevity of the roofing system. Other terms like ridge (top of the roof), peak (highest point of a pitch), and gable (triangular wall section at the end of a pitched roof) refer to different parts of the roof structure and do not denote the bottom of the slope.