Why choose code 3 300mm 6m roofing lead?

The code 3 300mm 6m roofing lead roll is a versatile, easy-to-handle format ideal for a wide range of flashing and weathering details. At 300mm wide, it offers excellent coverage for apron flashings, soakers, dormer edges and small abutments, while the Code 3 gauge keeps the weight manageable for quick and accurate installation on site.

Because the code 3 300mm 6m roofing lead is manufactured to BS EN 12588, each roll provides a consistent thickness and even mechanical behaviour. This makes it suitable for both new roofing work and the repair or reinstatement of older details — especially where a lighter gauge is preferred for ease of forming.

The benefit of the 6m roll format is the dramatic reduction in joints. Long, continuous lengths improve waterproofing performance and help installers produce cleaner, more professional-looking lines around roof junctions.

For instant quantity calculations, use our
Lead Flashing Calculator.

Typical uses for code 3 300mm 6m roofing lead

The 300mm width is one of the most commonly used lead sizes thanks to its adaptability. You will often find code 3 300mm 6m roofing lead used for:

• Apron flashings at chimneys, porches and lean-tos.
• Slightly wider soakers for slate and tile roofs.
• Dormer cheek edges and small weathering details.
• General flashing work around roof junctions.
• Heritage reinstatement where lightweight lead is preferred.
• Repairs to older roofs where flexibility is essential.

Advantages of a 6m roll for mid-width flashings

Choosing a 6m roll of this size offers several technical and practical advantages. Using code 3 300mm 6m roofing lead for longer flashing runs reduces installation time and minimises the need for overlapping joints — a key factor in keeping moisture out.

• Fewer joints mean improved waterproofing resistance.
• Reduced time spent cutting or aligning separate pieces.
• Consistent visual lines on visible roof areas.
• More economical usage with fewer offcuts and less waste.
• Ideal for longer abutment and apron applications.

Installation guidance for this 300mm 6m lead roll

Although this lead sheet is lightweight and highly workable, correct installation is essential. Always follow BS EN 12588 and LSTA/LSA recommendations when forming laps, joints and fixings. Ensuring adequate allowance for thermal expansion is especially important on longer runs.

After installation, all exposed surfaces should be coated with patination oil to reduce carbonate staining and ensure the lead weathers evenly — particularly on south-facing or highly visible areas.

Mortar or
Lead Mate Sealant
can be used to complete chases cleanly and securely.

Installation essentials

1. Prepare surfaces: Ensure the substrate is well supported and smooth.
2. Dress carefully: Form the sheet without overstretching or thinning the lead.
3. Use correct fixings: Copper or stainless nails from our
   Leadwork Fixings collection.
4. Seal chases properly: Finish with mortar or Lead Mate Sealant.
5. Finish professionally: Apply patination oil immediately after installation.

Further reading & professional resources

For more in-depth guidance on using rolled lead materials, explore
The Lead Handbook,
The Lead Lads,
and
Neal Roofing — Leadwork Services.

Recommended accessories

Enhance the performance of your code 3 300mm 6m roofing lead with:
Hall Clips,
Lead Underlay,
Patination Oil,
Lead Mate Sealant,
and our
Leadwork Accessories Range.

At a glance — code 3 300mm 6m roofing lead

All figures approximate. Always install in line with BS EN 12588 and current LSTA/LSA guidance.