Repair
If you have ever had a leak around your chimney, along a wall junction, or in a roof valley, there is a good chance the cause was failed lead flashing. Lead flashing is one of the most critical — and most overlooked — components of any roof. It creates a waterproof seal at every vulnerable junction where the roof surface meets a vertical structure like a chimney, wall, or vent pipe.
When flashing works, you never think about it. When it fails, water finds its way in — often causing damage that goes unnoticed for weeks or months. At JD Roofing, we specialise in lead flashing repair and replacement across Dublin, Kildare, Meath, and Louth. This guide explains what flashing does, where it is used, and how to spot problems before they become expensive.
What Is Lead Flashing?
Lead flashing is a thin, malleable sheet of lead that is shaped and fitted around the junctions and transitions on a roof. Its purpose is simple but essential: to prevent water from penetrating the gaps where different surfaces meet. No matter how well your slates or tiles are laid, there will always be areas where the roof surface meets a wall, chimney, vent, or another roof plane. These junctions cannot be made waterproof by tiles alone — they need flashing.
Lead has been used for flashing on Irish roofs for centuries because it is naturally waterproof, extremely durable, and soft enough to be shaped precisely around complex junctions. When installed correctly, lead flashing can last 50 years or more.
Read More:- What Is Lead Flashing and Why Does Your Roof Need It?
Contact Us
Phone No: 087 389 3446 | 085 213 6394
Email: sales@jdroofing.ie
Website: jdroofing.ie
