Aluminium Roof Flashing – 2500mm Length

Protect roof joints from water ingress with lightweight, durable aluminium flashing that's easy to install.

The Aluminium Roof Flashing – 2500mm Length is designed to seal and protect roof edges, abutments, and junctions from moisture and wind. Manufactured from corrosion-resistant aluminium and finished with an external-grade coating, this flashing provides long-term weatherproofing and a clean finish for any pitched or flat roof. It is easy to cut and shape on-site, making it ideal for both professional roofers and DIY installers.

Please refer to the attached RAL colour chart to view available options. At checkout, enter your chosen RAL colour in the designated box. 

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Starting at £19.80
excluding shipping cost

Features + Benefits

  • 2500mm length for long, continuous coverage

  • Lightweight aluminium for easy handling and installation

  • Protects vulnerable roof joints from water and wind

  • Powder-coated or mill finish options available

  • Corrosion-resistant and low maintenance

  • Compatible with slate, tile, felt, and metal roofing systems

  • Ideal for domestic, commercial, and industrial buildings

  • Made in the UK from high-quality materials

  • Suitable for new builds and refurbishments

Specs & Options

  • Material: Aluminium

  • Length: 2500mm

  • Finish: Mill finish or powder-coated

  • Use: Roof abutment, edge, and junction flashing

  • Compatibility: Tile, slate, metal, and membrane roofs

  • Fire Rating: Non-combustible

  • Lead Time: 3 to 5 working days

  • Custom Sizes: Available on request

Installation / Usage Instructions

Install above roof joints or where roof meets a vertical surface. Fix using screws or nails and seal the top edge with mastic or sealant. Can be trimmed on-site for a precise fit. Apply patination oil if required to prevent staining.

Need a long-lasting solution to seal roof edges and abutments?

This 2500mm aluminium flashing delivers professional-grade protection and a clean finish. Order today or contact the Online Metal Store team for help with custom sizing or project advice.