When an intersecting roof is built, what is created at a 45-degree angle to the walls and ridge?

In the context of roofing, when an intersecting roof is constructed, a valley is formed at the point where two roof planes meet, creating a 45-degree angle to both the walls and the ridge. This valley collects water that runs down the slopes of the roof and directs it towards the gutters, playing a crucial role in proper drainage.

Valleys can be either open or closed, depending on the roofing material and design that is employed. The significance lies in their ability to manage water flow, preventing potential leaks or water damage inside the structure. Understanding how valleys function in roofing design is essential for ensuring the integrity and durability of the roof structure over time.

In contrast, peaks refer to the highest points of a roof, overhangs refer to the sections of the roof that extend beyond the exterior walls, and hips are the edges formed when two roof slopes meet at an external angle, usually at more than 90 degrees. These terms highlight different functionalities and aspects of roof design, illustrating the importance of recognizing each component's specific role.