Why choose the Premium Code 4 1600mm 6m Roofing Lead?

The code 4 1600mm x 6m roofing lead is one of the most specialised rolled lead formats available anywhere in the UK. At an enormous 1600mm wide and 6m long, this is a highly engineered sheet for demanding, large-scale roofing projects where only the widest possible single-piece coverage will achieve the required performance, longevity and visual continuity.

Ideal for heritage roofing, high-budget restorations, commercial parapets, extremely deep box gutters and unique architectural structures, code 4 1600mm x 6m roofing lead dramatically reduces jointing while providing unmatched weathering capability. When installers need maximum width without stepping to Code 5, this roll is the premium choice.

Manufactured to BS EN 12588, this sheet offers consistent thickness, excellent malleability for forming complex details, and outstanding durability—making it suitable for conservation-grade work and high-value commercial installations.

For quick project calculations, use our
Lead Flashing Calculator.

Typical uses for Code 4 1600mm 6m Roofing Lead

• Extremely deep parapet wall coverings with long uninterrupted spans.
• Large box gutters on commercial buildings, churches and historic estates.
• Wide chimney gutters and substantial stepped or apron flashings.
• Full-width flat roof perimeters and specialist architectural details.
• Oversized dormer cheek cladding on large roof structures.
• Heritage and conservation projects requiring minimal jointing.
• Areas where only the widest possible sheet will eliminate excessive seams.
• Premium installations demanding high visual continuity and longevity.

The advantage of a 1600mm ultra-wide sheet

The code 4 1600mm x 6m roofing lead eliminates the need for multiple narrow rolls, reducing labour time and improving the structural integrity of weathering systems. With far fewer joints, installers can achieve industry-leading waterproof performance and an outstanding architectural finish.

• Unmatched single-sheet coverage for complex or large structures.
• Fewer seams = superior waterproofing performance.
• Cleaner, more uniform appearance on visible surfaces.
• Significant labour and installation time savings.
• Ideal for restoration specialists and high-specification contractors.

Where traditional sheet sizes fall short, this roll fills the gap.

Professional installation guidance

Because of its extreme width, code 4 1600mm x 6m roofing lead must be installed on a fully supported and perfectly prepared substrate. Thermal movement becomes a key consideration at this scale; all detailing must align with LSTA/LSA guidelines.

Avoid stretching during dressing. Seal chases properly and apply patination oil immediately after completion to prevent surface staining.

For long runs, expansion joints and correct laps are essential to ensure decades of performance.

Installation essentials

1. Prepare a fully supported substrate: The entire 1600mm width must be even, smooth and load-bearing.
2. Dress carefully: Avoid overworking the sheet; maintain consistent form.
3. Use correct fixings: Choose copper or stainless nails from our
   Lead Fixings Range.
4. Seal correctly: Use mortar pointing or
   Lead Mate Sealant.
5. Apply patination oil: Protect the surface immediately after fixing.

Further learning & resources

For deeper understanding and expert guidance, explore:
The Lead Handbook,
The Lead Lads,
and the professional leadwork guidance at
Neal Roofing.

Complete the system

Pair code 4 1600mm x 6m roofing lead with:
Hall Clips,
Lead Underlay,
Lead Mate Sealant,
Patination Oil,
and our complete
Accessories Range.

At a glance — Code 4 1600mm 6m Roofing Lead

Figures approximate. Always follow BS EN 12588 and LSTA/LSA guidelines for wide-format lead.