Navien Pitched Roof Weather Slate – Reliable Protection for Flue Installations The Navien Pitched Roof Weather Slate, also known as a pitched roof weathering slate or flashing, is an essential accessory for flue systems that pass through pitched roofs. Designed to provide a watertight seal at the roof penetration point, this component prevents rainwater and debris from entering the building, protecting both the structure and the flue system. Featuring a robust base plate that secures to the roof surface and a snug-fitting collar around the flue pipe, the weather slate ensures effective water and weatherproofing. Its durable construction guarantees long-lasting performance, making it a vital part of any professional flue installation. Key Features and Benefits