Why choose code 6 150mm 6m roofing lead?

The code 6 150mm 6m roofing lead roll is a heavy-duty flashing sheet designed for long runs, exposed details and heritage projects where additional mass and stiffness are required. At 150mm wide and 6m long, it is ideal for cutting multiple flashings, soakers and trims from a single roll, improving efficiency and reducing joints on site.

With significantly higher fatigue resistance than lighter gauges, code 6 150mm 6m roofing lead is frequently specified on listed buildings, traditional slate roofs and high-exposure sites where long service life is essential. It provides excellent stability on steep pitches or where flashings are subject to strong winds and regular thermal movement.

For weight, bay sizing and product selection guidance, use our
Lead Flashing & Roll Calculator.

Typical uses for code 6 150mm 6m roofing lead

This width and gauge is suitable for a wide range of detailed weatherings, including:

• Long cover flashings to walls, abutments and chimneys.
• Soakers for slate and tile pitched roofs in exposed locations.
• Parapet and coping trims where additional stiffness is needed.
• Secret gutters, narrow channels and small gutter linings.
• Heritage detailing on listed and conservation-grade buildings.

Code 6 150mm 6m roofing lead for specialist and heritage roofing

Heavy-duty sheets such as code 6 150mm 6m roofing lead are often required on roofs finished with long-life natural slates, including Welsh and Westmorland slate. These coverings have extended service lives, so their flashings and weatherings must offer similar durability and movement characteristics.

As a result, Code 6 is widely recognised by conservation officers, heritage roofing specialists and architects as a reliable choice for exposed coastal properties, churches, historic buildings and high-value traditional housing.

Lead Lads installation insight

For a practical look at robust leadwork in context, watch this short clip from The Lead Lads showing site-based detailing and good practice when working with heavy-gauge lead:

Installation guidance

While BS EN 12588 defines the material standard for rolled lead sheet, the correct installation of code 6 150mm 6m roofing lead must follow the detailing and workmanship requirements contained within:

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

These documents set out limits on bay lengths, laps, fixings and movement allowances for Code 6 lead, even on relatively narrow flashing widths.

For accessible technical summaries, see:
Neal Roofing – BS 6915 Leadwork
The Lead Lads – BS EN 12588 Guide

Installation essentials

1. Prepare the substrate: Ensure a smooth, continuous base and install
   Lead Underlay.
2. Set out correctly: Cut the 6m length of code 6 150mm 6m roofing lead into compliant flashing lengths that allow for movement.
3. Use correct fixings: Select copper or stainless fixings from
   Leadwork Fixings.
4. Seal joints: Use mortar or
   Lead Mate Sealant
   where a flexible joint is needed.
5. Finish: Apply patination oil to prevent uneven weathering and carbonate staining, using products from our
   Accessories range.

Further learning & technical resources

For additional guidance, visit
The Lead Handbook
and explore further resources at
theleadlads.co.uk.

Recommended accessories

Combine code 6 150mm 6m roofing lead with:
Lead Underlay,
Lead Patination Oil,
Lead Mate Sealant,
and high-grade fixings from our
Leadwork Fixings.

At a glance — code 6 150mm 6m roofing lead

Figures are approximate. Use BS EN 12588 for material specification and follow BS 6915 / LSTA guidance for correct design and installation of Code 6 leadwork.