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ZINCALUME window Z flashing cut to size

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Rainhead Flashing Order Form Sump / Tray Flashing Form EXAMPLE Flashing Order CUSTOM Flashing Order Form1 CUSTOM Flashing Order Form
Would you like a custom flashing, sump, or rainhead? Please download the applicable order sheet and return it to us at sales@metalroofingonline.com.au

Fast delivery across VIC • NSW • QLD • TAS • ACT 

ZINCALUME® Window Z Flashing - Cut to Size & Delivered Fast

Protect your windows from leaks and wind with genuine BlueScope ZINCALUME® Z flashing. Custom lengths, clean fit, and quick delivery direct to site.

✔ Genuine BlueScope ZINCALUME® steel (0.55 BMT)

✔ Cut to your length – less waste, faster install

✔ Fast dispatch to metro & regional areas

Specifications

Material BlueScope ZINCALUME® steel
Profile Z window flashing (head • sill • jamb)
Standard legs 100 mm × 15 mm × 10 mm
Steel thickness 0.55 BMT
Lengths Cut to size (enter finished length)
Tolerance +200mm, –0mm
Finish ZINCALUME® metallic

Need a different Z flashing size? Download the custom flashings form and email it to sales@metalroofingonline.com.au.

Complete the Job

FAQs

What does Z window flashing do?
It diverts water away from the window opening, preventing leaks and wind-driven rain ingress.
What thickness is supplied?
Standard supply is 0.55 BMT ZINCALUME® steel
Do you deliver to my site?
Yes — fast dispatch to VIC, NSW, QLD, ACT & TAS, with Australia-wide shipping available.
Can I order custom sizes?
Yes. Provide leg sizes and finished lengths on the custom form and email our team for a quote.

About ZINCALUME® Window Flashing

ZINCALUME® window flashing is a precision-engineered Z flashing designed to protect window openings from moisture, wind and water ingress. Made from genuine BlueScope ZINCALUME® steel, it combines strength, clean lines and corrosion resistance for long-term performance in Australian conditions.

Where It’s Used

This flashing is used at the head, sill and jamb of windows to create a watertight barrier between cladding and framing. It helps direct water away from the opening, protecting internal walls and insulation from leaks and rot.

✔ Suitable for residential and commercial builds

✔ Ideal for use with COLORBOND® and ZINCALUME® wall cladding

✔ Available in standard Z profile or custom sizes to your specs

Why Choose ZINCALUME® Steel?

ZINCALUME® steel offers proven corrosion resistance and a long service life. Its metallic coating provides superior protection in coastal and high-moisture areas compared to standard galvanised options. Each flashing is made from 0.55 BMT BlueScope steel and carries the BlueScope warranty for peace of mind.

Ordering Made Simple

All Z window flashings are cut to size — simply enter your required finished length when ordering online. Need a custom profile? Download the custom flashings order form and email it to sales@metalroofingonline.com.au.

Australia-Wide Delivery

We deliver ZINCALUME® window flashings across VIC, NSW, QLD, ACT & TAS — with fast turnaround to Melbourne, Sydney and Brisbane metro areas, and reliable shipping to regional Australia.

Complete the Job

FAQs

What is Z window flashing?
Z window flashing is a shaped metal strip that fits between cladding panels and window frames, diverting rainwater away from the structure.
What thickness is supplied?
Standard flashing is 0.55 BMT BlueScope ZINCALUME® steel with a manufacturing tolerance of ±2 mm.
Can I order custom lengths or sizes?
Yes. Provide head, sill or jamb dimensions, and we’ll manufacture to your exact specifications.
Do you deliver to my site?
Yes — we deliver across VIC, NSW, QLD & TAS, and ship Australia-wide through trusted carriers.