Corrugated Iron COLORBOND® Roofing Sheets


Corrugated Iron COLORBOND® roofing sheets are among the world’s most popular metal roofing products due to its high quality.

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Purchase COLORBOND® Roofing and Cladding in Corrugated Iron Sheet Profile

Among the world’s most popular metal roofing products due to its high quality and versatility. These corrugated iron roofing panels, which are also known as Custom Orb, are suitable for traditional and contemporary roofing projects alike.

Steel thickness - .42 BMT

Sheet cover - 762mm

MELBOURNE Deliveries

For Sydney COLORBOND® Corrugated Iron click HERE

For Perth COLORBOND® Corrugated Iron click HERE

For Brisbane COLORBOND® Corrugated Iron click HERE

For Adelaide COLORBOND® Corrugated Iron click HERE

General Info

COLORBOND® roof and cladding sheets are available in a wide array of different colours to match absolutely any building project and is made in Australia using BlueScope steel. To see the COLORBOND® colour range click here

Corrugated COLORBOND® is one of the most durable, long-lasting roofing materials available and it’s virtually maintenance-free. Made from hi-tensile steel this profile whilst strong, is also lightweight which minimises sheet damage.

Corrugated sheeting is pierce fixed which ensures easy fixing by the conventional method. To ensure maximum weather protection our Corrugated has a 1.5 rib overlap. The wide cover (762mm) allows for quick installation, saving on both materials and labour. This versatile profile can be used on a minimum roof pitch of 5 degrees.

Here at Metal Roofing Online, we only use and recommend Class 4 screws when installing your roof sheeting as they last considerably longer in the elements. In a standard roofing application, when fixing to either timber or metal purlins, we have in our ran

ge a Multifix screw which is the perfect choice for this roofing iron.

When using the corrugated iron sheet in a wall cladding application, there is choice between 12 gauge x 25 mm timber fix screws, when fixing into timber. Othewise, 10 gauge x 16mm will do the trick when fixing into steel.These screws are shorter as they are fixed into the pan (or valley) of the corrugation. "Cover of roofing sheet" : is the measured amount each sheet will cover (including side lap) when layed in position on the roof. IE the cover of a corrugated roof sheet is 760mm or .76 metre. Please consider both resistance to wind pressure and foot traffic for roofing spans. 

Please consider a couple of factors when deciding whether you need .42bmt or .48bmt sheets as roof covering:

Your batten spacing
How often the roof will be walked upon

The maximum recommended support spacings are based on testing in accordance with AS1562.1-1992, AS4040.1-1992 and AS4040.2-1992.

Roof spans consider both resistance to wind pressure and light roof traffic (traffic arising from incidental maintenance).

Wall spans consider resistance to wind pressure only. To view full limit state wind pressure capacity tables please download LYSAGHT CUSTOM ORB® and CUSTOM BLUE ORB® (1516 KB).

Maximum Support Spacings (mm)
Types of SpanBMT (mm)
Single Span700800
End Span9001300
Internal Span12001700
Unstiffened Eaves Overhang200250
Stiffened Eaves Overhang300350
Single Span18001800
End Span25002700
Internal Span27002700

For roofs: the data are based on foot-traffic loading.
Walling Sheet spans - please consider wind pressure only.

How to Boost Safety During Colorbond Roofing Installation

Installing Colorbond roofing is a relatively straightforward and simple process. This is why many property owners looking to save a few dollars are enticed to DIY the installation of their new roofs.

However, if you are planning to install new roofs on your home, you have to be aware of some of the risks involved with this task. In order to minimise, if not totally eliminate, the risks involved with the installation of metal roofs, here are a few tips that you should follow.

Conduct a visual inspection of the work area

Before even beginning with the actual installation of the metal roof panels, make sure that you carefully inspect the area you will be working on. Make sure that there are no weak spots on the roof which can lead to falls. If you are going to use anchors or special equipment used previously by the workers, make sure that these are stable and are still in good order.

Make the necessary preparations

After conducting a thorough visual inspection of the work area, the next task at hand is to identify the best points of access. Ideally, the point of access that you should choose to use should be free of obstructions and hazards. If possible, remove the hazards and other obstructions that you find. 

Before climbing on a ladder, make sure that it is positioned correctly and is stable and secure. If you need to bring materials on top of the roof, find an area that is both accessible and stable to place these. 

If there are structures like skylights or even holes on the roof, make sure that these are covered properly before starting with the metal roofing installation.

Check the weather before your scheduled work. As much as possible, avoid working on the roof when it is raining. Reschedule the installation to another date.

Use a fall protection system

A fall protection system can dramatically decrease the risks of falls and fatalities by preventing a person from falling from the roof to the ground or a level below the roof. This safety system is comprised of an anchor point which is connected to the harness worn by a person. These two components are connected together by a safety line.

Be aware and mindful

Whenever you are working from heights, you have to be aware of your surroundings and avoid distractions which can lead to unnecessary accidents.

Planning on installing metal roofing on your home? Make Metal Roofing Online your next stop. We’re Australia’s leading BlueScope steel supplier.

Fixing Leaks on Corrugated Iron Roofs

Corrugated iron sheets can withstand a substantial amount of beating due to their durability and strength. However, these roofing sheets are vulnerable to both excessive moisture and damage from high winds.

Typically, each roofing sheet is affixed to either wooden or metal trusses using nails or screws. Sometimes, these fasteners can rust, which eventually can cause leaks. Strong winds, on the other hand, can detach the roofing sheets, which again leads to leaks.

How do you fix leaks on your home's metal roof and prevent further damage and costly repairs or replacement?

If the leak is caused by the fasteners, the first thing that you need to do is to inspect the screws or nails used on the roof. Make sure that you walk on the row instead of walking between rows in order to prevent bending in the metal sheets.

If you notice nails that have been raised, remove these using a nail bar. After that, replace the nails that have been removed with aluminium screw nails. Position the replacement fastener just next to the area where the nail has been previously located. If you used screws as fasteners, remove those that have rusted heads using a cordless drill with a screw tip attachment.

After replacing the rusted fasteners, apply a coating of urethane roof cement on the new fastener by using a plastic putty knife.

Finally, check the caulk seams near the upper edges of the flashing used near pipes and vent ducks. If there are gaps or cracks, remove the caulking using a wire brush. After that, apply urethane roof cement.

On the other hand, if the leaks are caused by loose roof panels, you will first need to look for the gaps in the areas of overlap. 

Clean your roof and remove debris and rust from the surface of the roofing sheets using a wire brush. Pay special attention to the gaps. Afterwards, apply a layer of base coat before covering the base coat with glass membrane fabric.

If there are holes that need to be patched up, make sure that you use a corrugated roofing sheet similar to the one installed on your home.

Sometimes, it is better to replace a damaged roof rather than delay the inevitable by relying on quick fixes. You can find good deals on corrugated iron sheets here at Metal Roofing Online, a trusted BlueScope Steel supplier.

4 Reasons To Choose Colorbond Roofing

The roof is among the fundamental elements to consider when building a house or an establishment. It provides protection from the harsh weather, wild animals, and other elements that may cause harm or danger to people.

Aside from providing shelter, the roof also increases a home’s aesthetics and a property’s value. A good-looking roof gives a positive and lasting impression because it is one of the first things guests will notice when approaching your property.

In order to ensure that your roof lasts a long time, it is important to choose high-quality roofing materials. Choose a brand that has undergone tests, has passed quality checks, and has stood the test of time — like Colorbond.

Colorbond has been in the roofing industry for over 50 years now. Since it first introduced its paint line, it has continuously evolved and improved, now with roofing, fencing, and guttering products and accessories. It adopts to the continuous changes in the environment and advancements in technology.

Listed below are five reasons why you should choose Colorbond roofing for your home or building.

  1. It is durable.

Colorbond steel undergoes several laboratory and outdoor tests to ensure that it can be used in a wide range of manufacturing and building projects. It has undergone corrosion and durability tests. It can withstand severe weather conditions like extreme heat and cold, strong rain and wind, and even hail.

  1. It is energy-efficient.

The colour of the roof has been proven to help keep a home cooler during the hot season. It is said that darker coloured roofs that are made from standard materials absorb more heat as compared to lighter ones. 

Colorbond steel is considered solar reflective roofing. In addition, it also features Thermatech, a solar reflectance technology to help make homes more energy-efficient.

  1. It is easy to maintain.

A roof made from Colorbond steel requires little to zero maintenance work. Because the roof is naturally washed by rainwater every once in a while, this is usually enough to keep it clean. However, in instances where there are build up, washing it with clean water will prolong its life and maintain its colour.

  1. It can be customised.

Colorbond steel roof is available in Corrugated Iron (Custom Orb), Lip-Lok, and Trimdek in various colours and lengths. But if you require unique measurements, it can be custom cut to meet specific dimensions for every project. It can also be custom-made to suit any architectural style. 

If you want to enjoy all these benefits for your own building, you can easily order some Colorbond roofing online. Go to a trusted BlueScope Steel supplier to ensure a secure online transaction and enjoy the lowest prices as well as fast delivery.



We offer metal roofing supplies that are high-quality materials that come in affordable rates as well.


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