Associated Lead Mills (ALM)
We are one of the leading distributors of ALM rolled lead in the UK construction market. The lead supplied by ALM is manufactured under the Envirolead brand and is manufactured to BS EN 12588 ; 2006 in accordance with British Standard and European Norms for the building industry. The Premium Roofing Products ancillary products are produced specifically to be used with lead. All Envirolead rolled lead has a 50 YEAR Warranty.
ALM 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 as its presence is widespread, easy to extract, easy to work with, is highly malleable as well as easy to smelt. ALM rolled 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.
ALM 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 & roof tile 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 susceptible 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.