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What Is ZINCALUME® Roof Capping?
A ZINCALUME® roof capping—also known as barge capping—is a folded steel flashing that seals the junction between your roof sheeting and the fascia or barge board. It prevents water ingress and protects exposed roof edges while delivering a clean, professional finish that complements modern Australian homes and sheds.
This 10 × 75 × 140 × 10 mm barge capping is designed to suit corrugated iron roofing (Custom Orb profile), ensuring a secure fit and a visually seamless transition from the roof edge to the wall line. Whether you’re finishing a new build or re-roofing an existing structure, it provides durable, weather-tight performance you can rely on.
Why Choose BlueScope ZINCALUME® Steel?
Manufactured from BlueScope’s industry-leading ZINCALUME® steel, this flashing offers outstanding corrosion resistance, strength, and longevity. Each sheet features an aluminium-zinc alloy coating that provides up to four times the protection of galvanised steel—ideal for Australia’s coastal and regional environments.
Every flashing is cut and folded to precision, meeting Australian Standards AS1397 and AS/NZS 2728. Backed by the BlueScope warranty, you can install with complete confidence knowing your roof edges are protected for years to come.
Product Features & Specifications
- Profile size: 10 × 75 × 140 × 10 mm – suits corrugated iron (Custom Orb) roofs.
- Material: Genuine BlueScope ZINCALUME® steel.
- Thickness: .55 BMT (thicker and stronger than standard .42 BMT sheets).
- Tolerance: Length +200 mm / –0 mm.
- Finish: Smooth metallic sheen for a modern roofline appearance.
- Use: Roof edge protection, barge ends, and fascia interfaces.
Easy Online Ordering
Buying your ZINCALUME® roof flashings online is simple with Metal Roofing Online. Each product is priced per lineal metre with GST included, so you always know what you’re paying. Add your required length to the cart, and we’ll manufacture and dispatch it directly to your door.
Delivery usually takes 4–7 working days across Victoria, New South Wales, Queensland, Tasmania, and the ACT. We recommend allowing your flashings to arrive before booking installation to ensure a smooth project schedule.
Custom Flashing Options
Need a different size or angle? We can fold custom ZINCALUME® flashings to your exact specifications. Download our Custom Flashings Order Form and send your measurements to sales@metalroofingonline.com.au. Our team will manufacture your flashings for a precise fit—ideal for complex roof junctions, parapet edges, or box gutters.
Installation Tips
ZINCALUME® capping installs easily using compatible roofing screws and rivets. Ensure correct overlaps (minimum 100 mm) and apply a neutral-cure silicone sealant at joins for maximum waterproofing. Always handle the flashing with care to protect its metallic coating and appearance.
For complementary components, explore our matching ridge cappings, roof flashings, and corrugated roof sheets—all designed to integrate perfectly with BlueScope ZINCALUME® steel.
FAQ – Common Questions
Can I order custom lengths?
Yes. Flashings are supplied per lineal metre but can be folded to any custom length or profile—simply attach your order form with measurements.
What thickness is used?
All ZINCALUME® flashings are manufactured from .55 BMT BlueScope steel for superior strength compared with .42 BMT roof sheets.
Is ZINCALUME® suitable for coastal areas?
Yes, it performs exceptionally well in most environments. For extreme coastal conditions, consider upgrading to COLORBOND® Ultra steel.
How long does delivery take?
Delivery usually occurs within 4–7 business days, depending on your location within Australia.
Are these flashings Australian made?
Absolutely. Every flashing is made in Australia using genuine BlueScope ZINCALUME® steel—backed by the BlueScope performance warranty.
Order your ZINCALUME® Roof Capping & Flashings online today—the trusted choice for a durable, seamless roof edge finish and fast Australia-wide delivery.
