The 4 Inch (100mm) Lead Weathering Slate 450mm x 450mm Base - 90 Degree is a robust and durable roofing accessory designed for optimal weatherproofing around vent pipes and flues. Manufactured from high-quality Code 4 lead, this weathering slate provides exceptional resistance to corrosion and long-lasting performance. Its 450mm x 450mm base ensures ample coverage for reliable sealing, while the precise 90-degree upstand facilitates straightforward installation on pitched roofs. Ideal for both new builds and refurbishment projects in domestic or commercial settings, this lead weathering slate is an essential component for maintaining a watertight roof.