The BLM Lead Flashing Code 4 lead flashing sheet measures 6m long, 300 x 1.80mm (L x T) and weighs 37kg. The product is manufactured from lead material that is environmentally friendly due to its low melting point and end of life recycling rate. It is manufactured to British Standard BS EN 12588. The British Standard ensures the alloy used contains a minimum amount of lead and the correct amount of trace elements. It is used for a wide range of roofing applications whilst providing an exceptional level of waterproofing to prevent leaks and water damage. This product is flexible making it user friendly, is naturally malleable and corrosion resistant. The lead's ability to expand and contract at various temperatures makes it durable. This lead sheet should be fitted in accordance with BS 6915. It also comes with 50 year manufacturer warranty.