Code 7 milled lead flashing: heavy-duty weatherproofing for demanding roofing details
Code 7 is the heaviest-grade milled lead flashing in the standard range, with a 3.15mm thickness and a nominal weight of 35.7 kg/m². Supplied by Roofing Marketplace from 100% recycled raw materials and certified to British Standards BS 12588, it is built for applications where greater structural mass and long-term creep resistance are required. The precision milling process produces a clean, non-oily finish that is ready to install in all weather conditions, with no preparation required before fitting. A single coat of patination oil after installation is all that is needed to protect the surface from staining over its 100-plus year service life. CE marked to EN14783 and approved by the NHBC, Code 7 is suitable for flat roofing, pitched roofs, vertical cladding, parapet gutters, box and tapered valley gutters, bay tops, canopies and dormers.
Frequently asked questions about Code 7 milled lead flashing
Got a question about Code 7 lead? Find straightforward answers to the most common queries from roofers, builders and specifiers below.
View All FAQsCode 7 milled lead flashing is 3.15mm thick, with a nominal weight of 35.7 kg/m², making it one of the heaviest standard grades available.
Code 7 is suitable for flat roofing, pitched roofs, vertical cladding, parapet gutters, box and tapered valley gutters, pitched valley gutters, bay tops, canopies and dormers.
No. Code 7 milled lead holds BS 12588 Certification; is CE marked to EN14783 and is approved for use by the NHBC.
Correctly installed Code 7 lead flashing lasts over 100 years.
Individual Code 7 flashing pieces must not exceed one metre in length. Regularly spaced expansion joints are required to account for thermal movement.
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