COLORBOND® Barge Capping Roof Flashing

What Is COLORBOND® Barge Capping?

COLORBOND® barge capping is a metal roof flashing that seals and finishes the edges of your roof where it meets a gable end or barge board. It provides a neat, professional look while creating a watertight barrier that protects against wind, rain, and debris.

Made from genuine BlueScope COLORBOND® steel, barge capping is cut to length, available in all colours, and built to withstand Australia’s harsh climate.

Why Choose COLORBOND® Barge Capping?

•  Manufactured from genuine Australian COLORBOND® steel

•  Prevents water ingress and edge deterioration

•  Matches your existing COLORBOND® roof and gutters

•  Custom cut-to-length up to 8.0m (tolerance +200mm / –0mm)

•  Base Metal Thickness: 0.55 BMT for strength and durability

•  Compatible with residential, commercial, and shed roofs

•  Simple installation and ordering process

This flashing is engineered to maintain its colour, structure, and integrity over decades, making it one of the most trusted roof edge flashings in Australia.

Barge Capping vs Other Flashings

A standard barge cap is a common roofing and siding accessory designed to seal and protect the exposed edges of structures such as garages, sheds, and carports. It provides waterproofing and a neat finish for high-profile cladding and is widely used in various building applications.

Barge capping is the most visible flashing on your roof, and the first line of defence against wind uplift and water ingress at the gable.

Roofing Components

A well-designed roof is made up of several key components, each playing a vital role in protecting your home or business from the elements. The main elements include roof sheeting, barge boards, flashings, gutters, and ridge capping. Roof sheets form the primary surface, providing strength and weather resistance. Barge boards run along the gable ends, offering structural support and a neat edge.

Barge capping, also known as barge flashing, is installed over the junction where the roof sheeting meets the barge board, creating a watertight seal and a clean finish. Other flashings, such as apron and corner flashings, are designed to protect vulnerable joints and direct water away from critical areas. Gutters and valley flashings channel rainwater safely off the roof, preventing damage to walls and foundations.

Each component is designed to suit specific roof styles and profiles, ensuring a complete system that delivers both performance and style. Choosing the right combination of products, such as COLORBOND® barge cappings and matching flashings, helps achieve a long-lasting, high-quality result for any roofing project.

What Sizes and Profiles Are Available?

Barge capping comes in a variety of sizes and profiles to suit corrugated, Trimdek, and custom roof designs. Popular dimensions include 40mm, 75mm, and 90mm legs.

• Lengths: 1.0m to 8.0m (custom cut)

• BMT: 0.55 base metal thickness

• Tolerance: +200mm / –0mm

You have the option to choose from various sizes, profiles, and colors to best suit your project needs.

If you require a specific dimension, we offer custom-made COLORBOND® barge flashings to suit any roof pitch or profile.

How Much Does Barge Flashing Cost?

Prices generally range from $10 to $25 per linear metre, depending on thickness, profile, and colour choice. For the most accurate price, select your length and colour on the product page – no plans required.

Installation Tips: How to Fit Barge Flashing Correctly

1. Pre-check the alignment of roof sheeting along the gable end.

2. Position barge capping securely over the roof edge.

3. Fix using COLORBOND® roofing screws, spaced evenly.

4. Seal all overlaps and joints to prevent leaks.

Pro Tip: Pair barge capping with matching ridge capping and fascia flashings for a seamless finish.

Maintenance Advice for Long-Lasting Performance

To extend the life of your flashing:

•  Inspect regularly for loose fixings or corrosion

•  Remove debris and dirt from roof edges

•  Check that sealants and overlaps remain watertight

Regular maintenance ensures your barge flashing continues to protect against leaks and delivers decades of performance.

Where Is COLORBOND® Barge Capping Used?

•  Gable roofs on homes, sheds, and commercial buildings

•  Garages and carports

•  Renovations or re-roofing projects

•  DIY projects with pre-cut sizes, and all your essential metal roofing tools

When selecting COLORBOND® barge capping, always check for any state-specific requirements or availability, as regulations and product options may vary depending on your state.

Roofing Considerations

When planning a roofing project, there are several important factors to keep in mind to ensure the best outcome. Start by considering the style and pitch of your roof, as this will determine the type and size of barge capping and other flashings required. The local climate also plays a crucial role—selecting durable, weather-resistant materials like COLORBOND® steel is essential for protecting against harsh sun, wind, and rain.

Compatibility is key: make sure your chosen barge capping matches the profile of your roof sheets and suits the overall design of your building. Colour selection is another important aspect, allowing you to coordinate with existing gutters, fascia, and wall cladding for a cohesive look. Always check the available sizes and profiles to find the best fit for your project, and consider custom options if you have unique requirements.

If you have questions or need assistance, don’t hesitate to contact a roofing specialist. They can help you select the right products, quantities, and styles to achieve a professional finish and long-term protection for your roof.

Frequently Asked Questions

What is the purpose of barge capping?

It seals and protects the gable edge of a roof, preventing water ingress and providing a neat finish.

What length is barge capping available in?

All flashings are custom cut-to-length up to 8.0m, with a tolerance of +200mm / –0mm.

Is barge capping the same as ridge capping?

No. Ridge capping seals the apex of two roof slopes, while barge capping seals and finishes the roof edge at gable ends.

Can I install barge flashing myself?

Yes, if you’re experienced with DIY roofing. For warranty compliance and best results, a licensed installer is recommended.

Order COLORBOND® Barge Capping Online

Order COLORBOND® barge capping online 24/7 in the full colour range. Every flashing is custom cut-to-length from 0.55 BMT BlueScope steel, with fast delivery across VIC, NSW, QLD, ACT & TAS. Browse our accessories selection.

Conclusion: Final Considerations for Your Roofing Project

Selecting the right barge capping and flashings is essential for achieving a watertight, durable, and visually appealing roof. With COLORBOND® barge cappings, you benefit from decades of proven quality, a wide range of colours and profiles, and the versatility to suit any roofing style—from sheds to commercial buildings.

Take pride in your project by choosing products designed for precision and strength, ensuring every edge and valley is protected from water and weather damage. Whether you’re a DIY enthusiast or a professional, make sure to check your requirements, explore the available options, and order the right quantity and length for a complete, seamless result.

For expert advice, product selection, or to place an order, contact our team or browse our online range. Achieve the quality and style your roofing project deserves with COLORBOND® barge capping and flashings—engineered to protect and enhance your property for years to come.