GRP valley troughs are specifically designed to provide effective drainage channels for inclined roof valleys. Featuring a mortar bonding strip for secure bedding of roof tiles, these troughs ensure proper water flow. With a recycled content of 12% to 16%, they contribute to sustainability efforts. Additionally, our troughs hold BBA Certification (no 87/1915) and form a crucial part of a watertight roof system, resisting moisture penetration into the building interior. Built to withstand normal loads and impacts, they have a service life of at least 30 years under typical conditions. Thanks to their smooth finish, minimal maintenance is required, and the prevention of foreign matter buildup is ensured.