Why choose code 5 1200mm 6m roofing lead?

The code 5 1200mm 6m roofing lead roll is a substantially wide, heavy-gauge sheet engineered for major roof coverings, parapet weatherings, large gutters, bay roofs and heritage reinstatement work. At 1200mm wide and a full 6m in length, this format provides outstanding surface coverage with the exceptional durability and mechanical performance expected from Code 5 lead.

Manufactured to BS EN 12588, this product offers uniform thickness (approx. 2.24mm), excellent corrosion resistance and predictable shaping behaviour. Installers rely on code 5 1200mm 6m roofing lead for applications where structural integrity and long-term stability are essential—especially across large exposed areas where lighter gauges simply cannot perform reliably.

The extended 6m length helps minimise joints, delivering a cleaner finish and reducing potential weak points. This makes it ideal for long runs of parapet coverings, bay roofs and broad weatherings.

For planning, weights and bay-size guidance, consult our
Lead Flashing Calculator.

Typical uses for code 5 1200mm 6m roofing lead

This wide-format Code 5 roll is routinely used for:

• Large bay roofs requiring high-durability coverings.
• Parapet and boundary wall weatherings.
• Wide gutters, sumps and drainage channels.
• Dormer tops and large structural projections.
• Heritage and conservation-grade roofing projects.
• Full-width weatherings to stone cornices or façades.

Why Code 5 is the standard for heavy-duty and heritage work

The mechanical strength of code 5 1200mm 6m roofing lead makes it the preferred option for large areas and exposed elevations. Its increased gauge provides superior resistance to fatigue cracking, wind uplift and long-term weathering effects. This is why Code 5 is commonly specified by conservation officers and heritage roofing specialists.

For deeper technical background, see:
The Leadwork Link — an industry-leading resource produced by The Lead Lads.

Installation guidance

Due to its width, code 5 1200mm 6m roofing lead must be divided into correctly sized bays following LSTA Guidelines, separate using wood core rolls, expansion joints, or mechanical steps. Install over a suitable lead underlay to protect the underside from condensation and allow correct thermal movement.

All exposed faces should be treated with patination oil to prevent early carbonation marks and promote even weathering.

For chase jointing and perimeter sealing, use traditional mortar or
Lead Mate Sealant.

Installation essentials

1. Prepare the deck: Ensure full support and use
   Lead Underlay.
2. Divide into bays: Use correct drip spacing and welts.
3. Fix correctly: Choose fixings from our
   Leadwork Fixings.
4. Seal joints: Use mortar or Lead Mate Sealant.
5. Finish the surface: Apply patination oil across all areas.

Further learning & professional resources

Deepen your knowledge with
The Lead Handbook,
explore industry insights in
The Leadwork Link,
or review expert leadwork guidance via
Neal Roofing.

Recommended accessories

Pair code 5 1200mm 6m roofing lead with:
Lead Underlay,
Patination Oil,
Lead Mate Sealant,
and premium
Leadwork Fixings.

At a glance — code 5 1200mm 6m roofing lead

All values approximate. Install to BS EN 12588 and LSTA/LSA guidance.