The process of properly integrating roofing materials at the intersection of two sloping roof planes, creating a watertight channel for water runoff, is a critical aspect of roof construction. This technique ensures water is efficiently diverted away from vulnerable areas of the structure. For example, when two roof sections meet at an angle, the resulting trough requires specialized shingle installation to prevent leaks.
Effective valley shingling safeguards the underlying roof deck, preventing water damage that can lead to structural decay, mold growth, and costly repairs. Historically, various methods have been employed, each evolving with advancements in roofing materials and techniques to improve longevity and performance. Properly executed, this process enhances the overall durability and lifespan of the roofing system.
