When it comes to efficient roofing, lead flashing plays an important role in maintaining the structural integrity of your property. It’s a versatile material that is designed to prevent water leaks and ensure your roofing structure remains intact for years to come. But what exactly is lead flashing and how does it work?
Keep reading because in this blog, we’ll explore everything you need to know about lead flashing, including what it is, how it works, how to clean and maintain it, and how to install it.
What is lead flashing?
Lead flashing, also known as roof flashing, is a durable roofing material designed to protect structures from water leaks at joints and edges. It’s formed from roofing lead which makes it extremely sturdy yet pliable. It’s versatile, eco-friendly, and suitable to be used across different types of building surfaces, both modern and historical buildings alike.
Roof flashing plays a huge role in waterproofing roofs and sealing exposed joints and edges where leaks are likely to happen. As well as leak prevention, they provide stability to a roof structure enabling it to handle all types of challenging weather conditions.
There are several types of lead flashing that are suitable for areas like chimneys, roof valleys, and pipe openings. Each type comes in different codes, thicknesses, and are specifically made for their intended use. Some of the most common types of lead flashing include:
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Roof flashing – these are usually installed along roof valleys and apexes to protect against water leaks.
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Chimney flashing – used around chimney stacks to ensure no water leaks through joints.
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Wall flashing – these shield walls from moisture seepages at intersections with roofs.
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Pipe flashing – these ensure waterproofing around roof pipe penetrations.
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Step flashing – these are also known as a soaker, as they protect roof edges and step junctions.
How to clean lead flashing
White stains or powdery residue can often appear on lead flashing, and this is usually down to oxidation or prolonged exposure to harsh weather conditions. However, cleaning roof flashing is straightforward. By using a fine wire wool dipped in vinegar, you can easily and effectively lift these stains without damaging the surface.
When cleaning, it’s important to gently scrub the flashing with consistent, circular movements to remove built-up grime. Once the stains have lifted, wipe the lead flashing with a clean cloth.
You may want to consider applying patination oil after cleaning, as this can ensure white stains don’t resurface and resists oxidation, ultimately prolonging the life span of your flashing.
How to install lead flashing
When installing lead flashing, it’s essential to ensure a good and proper fit to avoid water leaks and enhance its effectiveness. Before you start, ensure you have to correct tools and materials which include:
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Lead flashing roll – make sure you have the correct type for the area you’re installing it to.
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Fixings – to securely fasten the flashing so it stays firmly in place.
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Sealant – to prevent moisture penetration and reinforce the strength of the attachment.
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Fine wire wool – this is useful if you want to clean the flashing before installing it.
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Patination oil – to help maintain durability of the lead flashing and prevent corrosion.
Once you have all of the tools and materials you need, you can begin installing the flashing. For a smooth and effective installation process, you can follow our step-by-step guide below:
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Prepare the surface – clean the installation area and remove any debris before you install. You can also clean your flashing at this stage with your wire wool and vinegar if you wish.
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Measure and cut your lead flashing – once you’ve measured the area, trim the flashing roll to fit your dimensions precisely.
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Fix securely – securely fasten the flashing using your fixings, making sure it aligns with all edges and junctions.
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Apply patination oil – if doing so, coat your installed flashing with patination oil to prevent carbonate formation and stains.
With proper installation, you can guarantee years of leak-free roofing performance. If you’re unsure on how to install lead flashing, be sure to consult with a professional who can ensure long-lasting performance with your lead flashing.
Where to buy lead flashing
If you’re in need of lead flashing for your construction or renovation project, be sure to speak to our specialists. At JTD Building Supplies, we stock a comprehensive range of lead flashing in a variety of codes, including, 3, 4, and 5, in varying widths and 3m and 6m lengths.
All of our lead flashing meets British Standards, including BS EN 12588, to give you complete peace of mind of our quality products. As well as that, any non-standard roll can be ordered for delivery within 2-3 days, meaning getting your lead flashing has never been easier.
We also offer a range of useful flashing applications, such as lead mate sealant, lead replacement flashings, and self-adhesive flashing tape to ensure you have everything you need for your project.
Get a quote for your lead flashing today
At JTD Building Supplies, we’re known for our extensive range of building materials, including our high-quality lead flashing products. Whether you’re working on a roofing project or need it for damp proofing, our comprehensive inventory ensures you can find exactly what you’re looking for.
From roofing supplies and garden landscaping, to timber supplies and loft insulation, we have all the materials you need for your next project. Don’t hesitate to contact our friendly team today to get a quote for your lead flashing, or for expert advice on choosing the right type of flashing for your needs.
Lead flashing FAQs
Can lead flashing be painted?
No, lead flashing cannot be painted due to oxidation. When lead forms a powdery substance over time, paint tends to peel off. However, applying a coat of patination oil prevents oxidation while maintaining its clean, aesthetic appearance on roofing surfaces.
How often should you inspect lead flashing?
The beauty of lead flashing is that it’s relatively low maintenance. It’s recommended that flashing is inspected at least once every couple of years, especially in areas exposed to harsh weather conditions. With regular inspections, you can prevent corrosion and ensure its durable performance over time.
What are some alternatives to lead flashing?
Some alternatives to roof flashing include cladding or synthetic sealants. These options mimic lead flashing functionality and durability, but are often chosen due to budget constraints or for the fact that they can be painted.
