Lead Flashing — Rolled Lead Solutions for Roof Junctions & Weatherproofing

What Is Lead Flashing?

Lead flashing is a critical weathering component used to seal junctions where roofs meet
walls, chimneys, dormers, parapets and other abutments. Properly detailed lead flashing allows for
long-term waterproofing while accommodating thermal movement between different materials.

All lead flashing products supplied here are manufactured as rolled lead sheet to BS EN 12588
and are intended to be detailed and installed in accordance with
BS 6915:2001 + A1:2014.

For regulatory context and best practice, see:

BS 6915 Leadwork Guidance

and the wider technical library in

The Lead Lads Leadwork Guides
,
both produced by specialist contractors.

Common Types of Lead Flashing

• Stepped flashings to masonry abutments
• Cover flashings to chimneys and parapets
• Apron flashings at roof-to-wall junctions
• Secret and back gutters
• Soakers for slate and tile roofs

Most domestic and heritage flashing work is carried out using
Code 3 lead flashing
or
Code 4 lead flashing,
depending on exposure, width, and movement requirements.

Choosing the Correct Lead Flashing

Selecting the correct lead code, width, and roll length is essential for performance and longevity.
Narrower flashings and soakers typically use Code 3, while wider or more exposed details often require Code 4.

To remove guesswork, use our
Shop the Lead Chart
tool to select compliant flashing sizes instantly, whether on site or at the desk.

Installation & Good Practice

• Follow BS 6915 and Lead Sheet Association detailing principles
• Allow for thermal movement with sensible piece lengths
• Avoid fixing through movement zones
• Dress lead carefully to prevent fatigue cracking
• Use compatible fixings and sealants

Trade customers can access bulk purchasing and project support via

Buy Rolled Lead Sheet (Trade)
,
supported by specialist contractors operating across

Yorkshire and the North of England
.

FAQs — Lead Flashing

For technical insight, case studies and standards commentary, visit

The Leadwork Link
.

Quick Reference — Lead Flashing

Always follow project specifications and British Standards. Incorrect flashing selection is a leading cause of premature roof failure.