01992 801910

JML is one of the leading distributors of rolled lead in the UK construction market. Our lead is manufactured to BS EN 12588 ; 2006 in accordance with British Standard and European Norms for the building industry. Our ancillary products are supported by Lead Sheet Association and display the LSA Approved label and our rolled lead has a 50 YEAR Warranty also backed by the LSA.


We hold extensive stocks of rolled lead in all codes, non-standard sizes are easily provided upon request, please contact our offices to discuss your specific requirements. Please also click here to see our weights chart for imperial conversion.


JML Rolled Lead is available in standard cut widths for lead flashing along with wider widths for roofing and cladding. Lead use in many product and materials used in daily life, but lead in construction has an extremely long history not just in the UK, but worldwide. Lead has been commonly used for thousands of years because it is widespread, easy to extract, easy to work with, is highly malleable as well as easy to smelt. JML lead is available in Codes 3/4/5/6/7/8.

The codes relate to the thickness of the metal which can heavily affect the performance and installed weight.


The application for which lead is used will determine which code will be required.


Modern day use of lead is higher than ever but as with many things in a more limited field. Lead is still a highly specified building material as no other metal can match its longevity once correctly installed, and the protection lead offers is second to none. As well as lead for roofing and cladding, JML can provide decorative lead in the form of planters, rosettes, rainwater systems and gargoyle.


Lead is malliable enough to take various forms regardless of how technical they may seem. The craftsmen JML work with are the very best in their field and JML lead has been used for all kinds of buildings from the average home to the stately home, churches to cathedrals and castles to palaces. Please visit the LCA website for details of projects. Jamestown Metals Ltd also provide lead bricks to into the medical industry for use with protective radiation shields for xray rooms and lead bibs for protection of patients and hospital staff. The history of lead goes way be to the Roman era and even in those times there was an estimated annual output of 80,000 tonnes, which was typically mined as a by-product of extensive silver smelting.


Rolled lead sheet has been awarded BRE Green Guide ratings of A and A+ when manufactured to British Standard BS EN12588. As a material Lead is 100% recyclable and the advantages of its use are vast when compared to other materials used for the same purpose. Rolled Lead Sheet Flashings and can be formed around all areas where water ingress is high risk such as chimney base & rooftile abutments, roofing tiles and brickwork of a building.


Due to the malleability of the material itself and the consistency of its thickness, correctly installed lead sheet will move with a building, expanding and contracting, coping with the wide range of temperature fluctuations a building can experience. Flashings made from plastics and bitumen can be susceptable to cracking under UV-rays becoming brittle over time. This can lead to water ingress, damage to the roof structure itself, severley reduce K value of the insulation and cause internal damage to the building. Flashings around chimneys, dormer or bay windows, parapet cappings, gutters, parapet gutters and valley gutters in particular are specifically designed to keep out water and should always be formed using a trusted and tested material that will not require maintenance or replacement for many years to come. Lead is by far the best material in this instance.





Rolled Roofing Lead


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