Why choose code 6 150mm 3m roofing lead?

The code 6 150mm 3m roofing lead roll is a compact yet heavy-duty sheet designed for premium flashing work, heritage detailing and exposed areas where a standard gauge is not sufficient. At 150mm wide, it is ideal for cover flashings, narrow parapet trims, robust soakers and weatherings that must withstand long-term fatigue, strong winds and regular thermal movement.

Because Code 6 carries significantly more mass and stiffness than lighter grades, code 6 150mm 3m 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 need additional rigidity.

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

Typical uses for code 6 150mm 3m roofing lead

This width and gauge suits a wide range of detailed weatherings, including:

• Durable cover flashings to walls, abutments and chimneys.
• Soakers for slate and tile pitched roofs in exposed areas.
• Parapet and coping trims requiring additional stiffness.
• Secret gutters and narrow channels.
• Heritage detailing where longevity and authenticity matter.

Code 6 150mm 3m roofing lead for specialist and heritage roofing

Heavy-duty lead such as code 6 150mm 3m roofing lead is often required on buildings using durable natural slates including Welsh and Westmorland slate. These coverings have long service lives, making it essential that weathering components match their durability and movement behaviour.

Code 6 is therefore widely approved by conservation officers, heritage roofing specialists and architects for use on listed buildings, church roofs, coastal properties and exposed upland structures where high stability and long-term performance are required.

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 3m 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 define bay lengths, laps, fixings and movement allowances for Code 6 work, even at smaller widths used for flashings and soakers.

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: Keep flashings within BS 6915 guidelines and allow for movement at joints and terminations.
3. Use correct fixings: Choose copper or stainless fixings from
   Leadwork Fixings.
4. Seal joints: Use mortar or
   Lead Mate Sealant
   where a flexible joint is beneficial.
5. Finish: Apply patination oil to prevent uneven weathering and carbonate staining, selecting 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 3m 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 3m roofing lead

Figures are approximate. Follow BS EN 12588 for material specification and BS 6915 / LSTA guidance for correct installation of Code 6 lead.