What is the purpose of valley metal in wood roofing?

The purpose of valley metal in wood roofing is to carry runoff water. Valleys are the lower points where two roofing slopes meet, and they are prone to collecting water during rainstorms or snowmelts. By installing valley metal in these areas, it creates a channel that directs water safely off the roof and into the gutters or downspouts, preventing water from pooling and reducing the risk of leaks and damage to the roofing materials.

Using valley metal is essential for effective water drainage, as it ensures that runoff flows in a controlled manner, protecting the integrity of the roof structure and maintaining its longevity. This function is critical in areas with heavy rainfall or snow, where proper drainage is necessary to prevent water-related issues.