The Code 4 Lead sheet is a heavy-duty, premium rolled-lead product manufactured to strict British Standards (BS EN 12588) for professional roofing, weatherproofing, and advanced construction applications. Featuring a standardized nominal thickness of 1.80mm and a weight of approximately 20.4kg per square meter, this specification provides a higher level of structural robustness and durability, making it the industry-preferred choice for larger flashings, valley gutters, and expansive weathering details across residential and commercial properties.
 
Engineered from high-purity refined lead, the material exhibits exceptional resistance to atmospheric corrosion, ultraviolet degradation, and extreme thermal fluctuations, ensuring a long-term service life that readily withstands decades of severe environmental exposure. Its natural malleability allows roofing contractors and tradespeople to dress, beat, and shape the sheet smoothly over complex tile profiles, stonework, and roof contours to form a continuous, watertight seal without cracking, tearing, or fatiguing under structural movement.
 
Designed for demanding on-site applications, Code 4 lead provides a secure, permanent barrier against water ingress in high-exposure areas such as large chimney abutments, pitched roof valleys, parapet walls, and major roof junctions. Whether you are undertaking new construction projects or executing major heritage restoration work, this trade-standard rolled lead delivers superior weatherproofing performance, enhanced structural resilience, and a clean, traditional architectural finish.