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Roofing valleys are a crucial component of pitched roof structures, designed to manage and direct the flow of rainwater where two roof slopes meet. Positioned along the internal angles formed by roof intersections, valleys act as channels that collect and safely guide water down to the guttering system, preventing water pooling and potential leaks. Available in a range of materials—including GRP (glass-reinforced plastic), lead, zinc, and polymer—roofing valleys are engineered for durability, weather resistance, and ease of installation. Modern GRP valley troughs, for example, offer a lightweight, maintenance-free solution that is compatible with most tile and slate types, while traditional lead valleys provide flexibility and a heritage look for period properties. Properly installed roofing valleys ensure effective drainage and enhance the lifespan of the roof by protecting vulnerable joint areas from water ingress and weather damage. Whether used in new builds or re-roofing projects, roofing valleys are essential for maintaining the integrity and performance of a pitched roof.