Why choose the Premium Code 4 390mm 6m Roofing Lead?

The code 4 390mm x 6m roofing lead is a wide-format, long-length rolled lead sheet designed for large weathering details that exceed the capacity of standard lead widths. This premium 6-metre roll delivers excellent coverage with minimal joints, making it ideal for parapet walls, large chimney back gutters, deep abutments, dormer structures and wide soakers where superior water management and long-term durability are critical.

Manufactured to BS EN 12588, our code 4 390mm x 6m roofing lead provides exceptional gauge consistency, improved malleability and industry-leading service life. Code 4 is the most widely specified gauge for general roofing applications thanks to its excellent balance of strength, flexibility and reliability.

At 390mm wide, this roll offers a significant upgrade for roofers who need extended vertical or horizontal coverage without stepping up into the heavier code grades. It is ideal for those details where 360mm is not quite enough, but using 450mm would introduce unnecessary weight.

For quick quantity planning on-site, try our
Lead Flashing Calculator,
designed for roofers, builders and surveyors who need fast pricing and measurements in seconds.

Typical uses for Code 4 390mm 6m Roofing Lead

• Wide parapet wall flashings and coping protection.
• Chimney back gutters, deep aprons and long side flashings.
• Large soakers for oversized slate and tile formats.
• Dormer cheek cladding and deep vertical flashings.
• Extended abutments requiring generous upstand height.
• Heritage and conservation work with wide bays.
• Commercial roofing where long uninterrupted coverage is key.

The advantages of choosing a 6m long roll

When installed correctly, a 6m length dramatically improves efficiency and performance on-site. The code 4 390mm x 6m roofing lead eliminates unnecessary laps, produces a cleaner finish and reduces the risk of water ingress associated with multiple joints.

The 6m long roll provides:

• Fewer joints for superior water resistance.
• Smoother visual lines on long structural details.
• Significant labour time savings on large projects.
• Better performance on exposed or low-pitch roofs.
• Enhanced reliability on parapet and chimney structures.

This makes the 390mm width ideal for high-value, technically demanding roofing applications across commercial and domestic projects.

Good practice with 390mm lead installations

As a wide-format sheet, code 4 390mm x 6m roofing lead requires solid, continuous support and correct movement allowance. Follow LSTA guidance and ensure that all substrates are smooth, clean and free from protrusions that could damage the sheet over time.

Avoid overstretching the lead during dressing, and always finish the surface with patination oil to prevent carbonate staining while promoting uniform weathering.

Chases should be sealed with mortar or a specialist product such as
Lead Mate Sealant.

Installation essentials

1. Prepare the substrate: Ensure full support across the entire 6m length.
2. Cut & dress cleanly: Shape the code 4 390mm x 6m roofing lead neatly and accurately.
3. Fix appropriately: Use copper or stainless nails from our
   Leadwork Fixings.
4. Seal the chase: Finish using Lead Mate Sealant or traditional mortar.
5. Protect the surface: Apply patination oil immediately after installation.

Further reading & resources

To learn best practice, explore:
The Lead Handbook,
theleadlads.co.uk,
and the specialist guides at
Neal Roofing.

Complete the system

Combine code 4 390mm x 6m roofing lead with:
Hall Clips,
Lead Underlay,
Lead Mate Sealant,
Patination Oil,
plus more accessories in our
Accessories Range.

At a glance — Code 4 390mm 6m Roofing Lead

All numbers are approximate. Always follow BS EN 12588 and LSTA detailing guidance.