Why choose code 6 180mm 3m roofing lead?

The code 6 180mm 3m roofing lead roll is a premium heavy-gauge sheet designed for high-exposure stepped flashings, abutments and weatherings on heritage roof slopes. This narrower width is perfectly suited to repeated cutting for stepped flashings, cover flashings and abutment details where additional rigidity and long-term durability are required.

Code 6 offers far greater stiffness and fatigue resistance than lighter grades, making it the preferred choice for flashings on traditional slate roofs—particularly those finished with
Welsh slate
or
Westmorland slate.

The 180mm width ensures that each piece remains easy to handle, dress and fix while delivering the heavy-duty performance expected on heritage and exposed buildings.

Typical uses for code 6 180mm 3m roofing lead

• Stepped flashings on chimney stacks, parapets and heritage roof abutments.
• Cover flashings for high-exposure areas.
• Abutment weatherings where extra rigidity is beneficial.
• Flashings to heavy slate roofs requiring long service life.
• Durable details in coastal, upland or high-wind environments.

Why Code 6 is used for flashings on heritage roofs

Traditional slate roofs—especially those finished with Welsh or Westmorland slate—create higher loads and demand more fatigue-resistant flashings. code 6 180mm 3m roofing lead provides the additional mass and stiffness needed to withstand movement, wind uplift and thermal variation over decades.

It is also commonly selected by conservation architects and heritage roofers for listed buildings, churches and historic properties where long-term material performance is essential. Code 6 is widely used for high specification roofing projects. Further, when installing lead hips and ridges, where clips are provided, the use of code 6 can provide additional rigidity where the use of stainless steel or copper clips is not preferred.

Installation guidance

BS EN 12588 defines the material standard for rolled lead sheet.
Correct design and workmanship for code 6 180mm 3m roofing lead are detailed in:

• BS 6915 — Design & installation of lead sheet roof and wall coverings.
• LSTA Lead Sheet Manual — Practical, site-based detailing guidance.

Useful summaries of these standards are available via:
Neal Roofing – BS 6915 Leadwork
The Lead Lads – BS EN 12588 Guide

Lead Lads heritage example

See Code 6 flashings and heavy-gauge detailing in use:

Installation essentials

1. Prepare the chase: Ensure clean, even joints for stepped flashing insertion.
2. Cut consistent steps: Repeat cuts efficiently from the 180mm sheet.
3. Fix correctly: Use copper or stainless fixings from our
   Leadwork Fixings range.
4. Dress and welt: Form flashings neatly to the slate surface.
5. Finish the work: Apply patination oil to prevent early staining.

Further learning & technical resources

For more guidance on heritage flashings and heavy-duty leadwork, explore:
The Lead Handbook
theleadlads.co.uk

Recommended accessories

Pair code 6 180mm 3m roofing lead with:
Lead Mate Sealant,
Patination Oil,
Copper/Stainless Fixings.

At a glance — code 6 180mm 3m roofing lead

Figures approximate. Use BS EN 12588 for material specification and follow BS 6915 / LSTA guidance for correct detailing of Code 6 stepped flashings.