Roof Flashing Roll (Lead-Free) 300mm x 5m
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Product Details
Roof Flashing Roll is a flexible, lead-free material used to create watertight seals around roof penetrations and junctions where the roof meets walls or chimneys. This 300mm wide by 5m long roll can be easily cut, shaped, and installed to prevent water ingress at vulnerable points of your roof, protecting your home from leaks and water damage. The material adheres firmly to various surfaces and can be hammered flat against walls and tiles for a secure fit, making it ideal for DIY roof repairs and installations. It's environmentally friendly alternative to traditional lead flashing, offering similar flexibility and durability without the health concerns associated with lead products. Perfect for sealing around skylights, chimneys, vents, and roof valleys, this versatile material can be installed using simple hand tools and roofing cement.
As of August 2026, PriceNailer data confirms that the cheapest price for Roof Flashing Roll (Lead-Free) 300mm x 5m is £49.99 from B&Q across 4 suppliers. Prices have increased by 10.4% over the last 15 months.
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Frequently Asked Questions
What coverage does a 300mm x 5m roof flashing roll provide?
A 300mm x 5m roll provides 1.5 square metres of coverage. This is typically sufficient for sealing around 2-3 standard chimneys or multiple smaller penetrations like vents and pipes. The roll can be cut to required lengths for different applications.
Can lead-free roof flashing roll be shaped around complex roof details?
Yes, lead-free roof flashing is highly flexible and can be easily shaped around chimneys, valleys, and irregular roof penetrations. It can be formed by hand and hammered into position against walls and tiles. The material maintains its shape once installed and provides excellent conformity to roof contours.
What tools do I need to install roof flashing roll?
You'll need basic hand tools including tin snips or sharp knife for cutting, hammer for shaping, roofing cement or adhesive for fixing, and a flat tool for pressing edges down. No specialist equipment is required, making it ideal for DIY installation.
Is lead-free roof flashing as durable as traditional lead flashing?
Yes, modern lead-free roof flashing offers comparable durability and weather resistance to traditional lead products. It provides excellent UV resistance, won't crack in frost, and typically lasts 15-20 years. The lead-free formula eliminates health and environmental concerns while maintaining performance.
Can roof flashing roll be used on all roof types?
Lead-free roof flashing roll is suitable for most roof types including tile, slate, metal, and flat roofs. It adheres well to various materials and can be used with different roof pitches. Always ensure proper overlap and sealing with appropriate roofing cement for your specific roof material.