Why choose Code 6 390mm 3m Roofing Lead?

Code 6 390mm 3m Roofing Lead is a heavy-duty roll for flashings and compact weatherings where you want extra stiffness and long-term durability,
but you still need a width that’s practical to dress on site. At approximately 2.65 mm thickness and around 30.0 kg/m²,
Code 6 holds its shape well and is ideal where lighter lead can distort, fatigue, or end up over-fixed in an attempt to keep it flat.

The 390 mm width sits in a useful “wide flashing” zone: it offers noticeably more cover than 300–360 mm, but remains easier to handle than 510–600 mm+ sheets
on awkward scaffolds. The 3 m length supports sensible piece lengths for movement control and controlled dressing—particularly helpful for chimney aprons,
deeper abutment flashings, and compact protective weatherings. For principle-led guidance on movement zones and restraint strategy, see
The Lead Lads and our standards explainer aligned to
BS 6915 — Proper Leadwork.
For real-world examples of finished leadwork detailing, visit
Neal Roofing — Leadwork.

Best-fit uses for Code 6 390mm 3m Roofing Lead

• Deeper abutment flashings to brick/stone upstands and parapet returns.
• Chimney aprons & back gutter interfaces where stiffness improves shape retention.
• Compact weatherings to upstands, dormer details and junctions needing extra cover.
• Protective trims in higher exposure zones where light sheet can flutter or fatigue.
• Refurbishment upgrades replacing distorted or over-nailed lighter lead.

Planning & set-out

Before cutting Code 6 390mm 3m Roofing Lead, confirm lap requirements, joint positions and where drips/turns will fall. Keep piece lengths sensible for movement control,
align joints with steps and drips, and avoid “dead pockets” that trap water and debris. Where flashings are chased into masonry, set the chase line first to reduce re-dressing and
maintain a clean finished edge.

Good practice: movement, slip layers and restraint

Lead moves—so detailing must allow for it. Keep mechanical fixings out of movement zones and never bridge expansion features. Under wider weatherings and bay elements,
use a smooth Building Paper Lead Underlay (slip layer) to reduce underside abrasion and help the sheet slide rather than buckle.
Where perimeter edges are exposed to wind uplift, use a
Stainless Steel Fixing Strip and compatible clips to restrain the edge while allowing controlled movement.

For chase flashings, use Hall Clips for chase restraint, then point neatly with mortar or
Lead Mate Sealant depending on the specification. For a cleaner early-life finish on visible elevations,
apply Lead Patination Oil.

Installation essentials

1. Substrate preparation: Ensure smooth, continuous bearing and remove sharp arrises that can puncture lead.
2. Cut and dress: Cut cleanly and dress with the right tools to form crisp drips, turns and welts without over-stretching.
3. Fixings: Use Copper ARS Nails or
   Stainless Ringshank Nails where specified; avoid over-fixing.
4. Restraint strategy: Combine correct restraint with movement-friendly detailing and keep fixings out of movement zones.
5. Finish: Check drainage, keep outlets clear, and protect adjacent finishes during dressing and pointing.

Choosing the right width

390 mm offers confident cover for heavy-duty flashings and compact weatherings. If you need more cover, move to 450–510 mm widths for deeper weatherings, and 600 mm+ for parapets and bays.
If geometry is tight, step down to 300–360 mm. Matching width and code to function—plus thoughtful movement detailing and drainage—underpins long service life.

Further reading

For deeper guidance on compliant detailing, movement control and best practice, visit
theleadlads.co.uk and review site examples at
Neal Roofing — Leadwork.

At a glance — Code 6 390mm 3m Roofing Lead