Why choose code 5 914mm 3m roofing lead?

The code 5 914mm 3m roofing lead roll is designed for wider bays, substantial gutter linings and details where extra width provides more flexibility in setting out the roof. Compared with 850mm rolls, the additional 64mm of coverage can simplify planning, reduce the number of joints and optimise bay layouts, particularly on deeper flat or low-pitch roofs and large gutter runs.

Manufactured to the BS EN 12588 rolled lead material standard, code 5 914mm 3m roofing lead offers consistent thickness (approx. 2.24mm) and controlled tolerances for predictable forming and long-term performance. BS EN 12588 covers the material specification; workmanship and detailing must follow the Lead Sheet Training Academy (LSTA) guidance and the national installation standard BS 6915.

The 914mm width makes this roll ideal where a single sheet needs to span deeper gutters, wider bays or more demanding weatherings without over-complicating the joint layout. It’s a useful upgrade option when 850mm doesn’t quite achieve the ideal set-out.

For bay sizing, layout planning and roll quantity, use our
Lead Roll & Flashing Calculator.

Typical uses for code 5 914mm 3m roofing lead

This format is especially suited to:

• Wider lead bays on flat and low-pitch roofs.
• Gutter linings and channels where additional width is beneficial.
• Large back gutters and aprons behind chimneys or wide upstands.
• Boundary and parapet cappings requiring deeper cover and generous laps.
• Interface weatherings between flat and pitched areas with complex geometry.
• Repair and upgrade work where existing details benefit from a wider sheet width.

Setting out roofs with 914mm vs 850mm lead

When planning bay layouts, the extra width of code 5 914mm 3m roofing lead can reduce the number of bays across a roof, minimise joints, and help align bay divisions with structural supports or architectural features. Compared to 850mm, 914mm rolls offer:

• Improved flexibility when aligning bays with timber roll positions or drip locations.
• Potential to reduce the total number of bays, joints and laps.
• More efficient coverage on deeper gutters and channels.
• Better optimisation of material for complex roof geometries.

This makes the 914mm option popular with leadwork specialists who regularly plan wide bay roofs, long gutter runs and large parapet details.

Installation guidance

Install code 5 914mm 3m roofing lead in accordance with the LSTA manuals and the detailing rules in BS 6915. These standards define:

• Maximum bay sizes and recommended drips for Code 5 coverings.
• Lap dimensions for gutters, bays and parapet coverings.
• Correct fixing methods, clipping centres and restraint positions.
• Thermal movement allowances for heavy-gauge leadwork.

BS EN 12588 is the material specification only. For workmanship guidance, see:
The Lead Lads – BS 6915 Leadwork Summary
Neal Roofing – BS 6915 Leadwork Overview

After installation, apply patination oil to all exposed surfaces to reduce early whitening and promote even weathering.

Installation essentials

1. Prepare the substrate: Ensure continuous support with smooth boarding and fit
   Lead Underlay.
2. Set out bays: Use the flexibility of 914mm width to optimise bay layout within BS 6915 limits.
3. Fix correctly: Use copper or stainless fasteners from
   Leadwork Fixings.
4. Form joints: Create correct drips, laps and junctions for Code 5 heavy-gauge sheets.
5. Finish: Apply patination oil and check all interfaces and chases for integrity.

Further learning & technical resources

For an in-depth explanation of rolled lead material standards, see:
BS EN 12588 – The Ultimate Guide.

Additional detailing guidance and system thinking is available via
The Lead Handbook
and across our main knowledge hub at
theleadlads.co.uk.

For on-site examples and specialist installation, visit
Neal Roofing – Leadwork Services.

Recommended accessories

Pair code 5 914mm 3m roofing lead with:
Lead Underlay,
Patination Oil,
Lead Mate Sealant,
and high-quality fasteners from
Leadwork Fixings.

At a glance — code 5 914mm 3m roofing lead

Values approximate. Use BS EN 12588 for material specification and follow LSTA / BS 6915 for workmanship and detailing of wide bays and gutter linings.