Milled Lead Code 4
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Code 4 milled lead flashing: the UK's most widely used lead code
Code 4 milled lead flashing is the most specified lead code in UK construction, produced at 1.80mm thickness with a nominal weight of 20.4 kg/m². Manufactured using a traditional milling process from 100% recycled raw materials, it is British Standards BS12588 certified and CE marked to EN14783. Fully malleable for easy working on site; it is 100% recyclable, typically lasts over 100 years, and is approved for use by the NHBC. Individual pieces must not exceed 1.5 metres in length to prevent thermal movement issues.
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Lorem ipsum dolor sit amet, consectetur adipiscing elit. The team were fantastic from start to finish and the results speak for themselves.
Sarah Thompson
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Professional, tidy, and finished ahead of schedule.
James Wilson
Wilson Developments
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
Emily Clarke
Frequently asked questions about Code 4 lead flashing
Code 4 is the most widely used lead code in UK roofing. Here are the answers to the questions we get asked most often.
View All FAQsCode 4 cast lead flashing measures 1.80mm in nominal thickness, with a nominal weight of 20.4 kg/m², making it the standard choice for most domestic and commercial roofing applications.
Code 4 is suitable for dormers, chimney flashings, apron and cover flashings, bay tops and canopies, hip and ridge flashing, soakers, pitched valley gutters and vertical cladding.
No. Code 4 milled lead flashing holds BS 12588 certification, is CE marked to EN14783, and is approved for use by the NHBC and accepted by building control authorities across the UK.
Individual Code 4 flashing pieces must not exceed 1.5 metres in length. Regular spaced expansion joints are required to allow for thermal movement caused by temperature fluctuations.
Yes. Code 4 is manufactured from 100% recycled raw materials and is fully recyclable at the end of its service life, which typically exceeds 100 years.
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