Why choose Code 4 1000mm 3m Roofing Lead?

The lead code 4 1000mm x 3m roofing lead flashing roll is designed for situations where you need serious coverage,
strength and durability in a single sheet. With a full metre width and Code 4 gauge, this roll is perfect for
valley gutters, parapet weatherings, dormer tops and wide junctions where narrower flashing simply will not do.
Compared with lighter gauges, this lead code 4 1000mm x 3m roofing lead flashing roll offers improved resistance to
foot traffic, wind uplift and long-term thermal movement, while still dressing cleanly into detail.

Manufactured to BS EN 12588, each roll gives you consistent thickness and reliable performance on site.
For busy roofers and builders ordering while on the scaffold, our interactive
Lead Flashing Order Tool makes it easy to select the right
width, length and code without slowing the job down.

Typical uses for Code 4 1000mm 3m Roofing Lead

• Wide valley gutters on slate and tile roofs where generous water capacity is required.
• Parapet and flat roof weatherings with large exposed areas needing robust protection.
• Dormer tops, apron flashings and back gutters to substantial chimneys and abutments.
• Large soakers or stepped details where a wider sheet reduces the number of joints.
• Heritage reinstatement where rolled lead must replicate traditional wide sheet details.

Good practice with Code 4 1000mm 3m Roofing Lead

As with all wide-gauge material, limit piece lengths to control movement and avoid fatigue.
For this lead code 4 1000mm x 3m roofing lead flashing roll, that usually means working in shorter bays or
sections rather than using the full length in one piece. Always use a suitable slip layer from our
lead underlay range beneath the sheet to protect the underside,
and keep fixings to the top edges only so the lead can expand and contract freely without buckling.

Installation essentials

1. Prepare the substrate: Provide a smooth, well-supported base and remove sharp edges or projections.
2. Set out & cut: Mark out bays so that the lead code 4 1000mm x 3m roofing lead flashing roll is used efficiently
   while keeping individual pieces within recommended length limits.
3. Fix with care: Use copper or stainless fixings from our
   leadwork fixings section, keeping fixings out of movement zones.
4. Form laps & joints: Use welts, drips and laps that shed water quickly, following guidance from our
   in-depth resource The Lead Handbook.
5. Protect new work: Apply patination oil and protect fresh lead from other trades until it has weathered in.

Standards & further reading

For workmanship and detailing principles that support durable rolled lead installations, see our guidance in
The Lead Handbook and the broader service overview at
Neal Roofing — Leadwork Services.
You can also explore the wider brand and project case studies at
theleadlads.co.uk.
When specifying alternatives or companion products, browse our full
rolled lead range and related
accessories.

Complete the system

Pair this lead code 4 1000mm x 3m roofing lead flashing roll with:
Hall Clips for quick chase restraint,
Lead Mate Sealant for neat pointing,
Building Paper Lead Underlay beneath wide bays,
and Lead Patination Oil 0.5L to help control early staining.
For fixings and accessories, explore our Leadwork Fixings and
Accessories categories to complete your order in one go.

At a glance — Code 4 1000mm 3m Roofing Lead

Figures are indicative; always follow your project specification and recognised leadwork guidance.
Use heavier codes or altered detailing where loads, spans or exposure demand it.