Colorbond is pre-painted steel sheeting made for Australian roofs.
It starts as strong structural steel, gets a metallic coating to fight corrosion, then a baked-on layer of colour designed to handle harsh sun, salt air and heavy rain. The result is a roof that is light, tough and built for our climate.
That is why you see it on so many homes across Newcastle, Lake Macquarie, the Central Coast, the Hunter Valley and Port Stephens. It sheds water fast, copes with coastal conditions and lasts for decades when it is installed and maintained properly.
For most NSW homeowners, a metal roof is the sensible default. It is proven, widely available, and a good crew can re-roof a standard house in days rather than weeks.
Colorbond compared to old concrete tile
Plenty of older homes still wear concrete tile. If yours is one of them you have probably noticed the trade-offs.
- Weight. Concrete tile is heavy and loads up your roof frame. Colorbond steel is a fraction of that weight, putting far less strain on the structure.
- Cracking and breakage. Tiles crack, slip and break, especially after foot traffic or a hailstorm. Steel sheeting does not crack the way tile does.
- Lichen and moss. Old porous tiles soak up moisture and grow lichen and moss, which holds water against the roof. Colorbond stays cleaner and dries out quickly.
- Maintenance. Tile roofs need ongoing repointing of the ridge capping and regular replacement of broken tiles. A sound metal roof asks very little of you year to year.
- Lifespan. A quality Colorbond roof that is looked after can serve a home for decades without the constant patch-ups an ageing tile roof tends to need.
| Factor | Colorbond steel | Concrete tile |
|---|---|---|
| Weight per m² | ~5 kg | ~50 kg |
| Cracking risk | Very low | High (foot traffic, hail) |
| Maintenance | Minimal | Regular repointing and tile replacement |
| Moss and lichen | Resistant | Prone to growth |
| Typical lifespan | 40–70 years | 50–100 years (with ongoing repairs) |
Colour range and the Thermatech advantage
One of the quiet wins with Colorbond is the colour range. There are 22 core colours plus a premium Matt finish, so you can match heritage homes, new builds and everything in between without resorting to a paint job that fades in a couple of summers. The colour is baked into the finish, not brushed on afterwards.
The other benefit worth knowing about is Thermatech. This is the heat-reflective technology built into the finish, available across all core colours except Night Sky.
- Reflects more of the sun’s heat away from your roof
- Helps keep the space underneath cooler in summer
- Lighter colours reflect the most, but the technology works across the range
- Can reduce the load on your air conditioning during hot months
Coastal and bushfire performance
Living on the Central Coast or near Newcastle means your roof cops salt air, humidity and storm-driven rain. Standard Colorbond handles most coastal conditions well, but there is one important distinction.
- Standard Colorbond. Suitable for most residential areas, including coastal suburbs more than 500 metres from breaking surf.
- Colorbond Ultra. If your home sits within 500 metres of the ocean, BlueScope recommends the Ultra grade for extra corrosion protection in severe marine exposure.
For homeowners in the Hunter Valley and other bushfire-prone areas, Colorbond steel is rated for use up to BAL-FZ (Bushfire Attack Level, Flame Zone), the highest classification under Australian Standard AS 3959. That makes it one of the safest roofing materials for fire-prone regions.
Maintenance and warranty
A Colorbond roof is low-maintenance, but it is not no-maintenance. Keeping it in good shape is straightforward.
- Hose down the roof with clean fresh water every six months to clear salt and debris
- Clear leaves and debris from gutters and valleys regularly
- Check flashings and fixings after severe storms
- Keep overhanging branches trimmed back from the roof surface
For a deeper clean, professional roof cleaning is worth considering every few years, especially in coastal and tree-heavy areas.
BlueScope backs Colorbond with product warranties that vary by profile, colour and environment. Warranty coverage depends on your location and exposure level, so check which grade applies to your property. You can read more about keeping your roof in top condition in our maintenance guide.
The three paths for a metal roof
When people ring us about their roof, what they actually need usually falls into one of three jobs. Knowing which one applies to you saves time and money.
Replace and re-roof. If your roof is old, the tiles are past saving, or your existing metal roof is corroded and leaking in multiple spots, the right move is a full Colorbond roof replacement. This means stripping the old roof and installing new steel sheeting. If you are in the city, you can see how we approach a Colorbond roof replacement in Newcastle as a worked example.
Restore and recoat. If your existing metal roof is structurally sound but looking tired, faded or starting to surface rust, you may not need a full replacement at all. A metal roof restoration cleans the roof, treats any rust, repairs minor faults and recoats the whole surface so it looks and performs like new. You can read about what a full roof restoration involves if you want the detail.
Repair specific faults. Sometimes the roof is fine apart from one or two problems. A leak around a flashing, a few loose screws, storm damage to a section, or a gutter issue. In that case you want targeted metal roof repairs rather than a whole project.
Not sure which path fits? Our guide on when a roof needs full replacement versus a repair walks through the decision.
What it costs
The honest answer is that it depends. The price of any roofing job moves with the size of the roof, the pitch, how easy it is to access, the condition of what is already up there and which of the three paths above you need.
- Roof size and pitch
- Access difficulty (single storey vs multi-storey, steep vs low pitch)
- Current roof condition and material
- Whether you need a full replacement, restoration or targeted repair
A small repair and a full re-roof are very different numbers. Anyone who quotes a firm figure over the phone without seeing the roof is guessing. The sensible step is to get a free quote based on your actual roof.
Choosing a licensed roofer
Roofing is work you want done once and done right. Always use a licensed roofing specialist, and check they hold a current NSW Fair Trading contractor licence.
- Ask how long they have been in the trade
- Check they are licensed and insured
- Ask whether they do the work themselves or use subcontractors
- Look for manufacturer accreditations (e.g. Dulux Acra-Tex)
At All Pro Roofing, David has spent more than 30 years on the tools and has run the business since 2005. We are Dulux Acra-Tex accredited, we work across Newcastle, Lake Macquarie, the Central Coast, the Hunter Valley and Port Stephens, and every quote is free.
If your roof is due for attention, the easiest place to start is a proper look at it. Get a free quote and we will tell you straight whether you need a replacement, a restoration or a simple repair. You can also reach us on 0406 620 352.
Colorbond roofing FAQ
How long does a Colorbond roof last?
A well-installed Colorbond roof can last 40 to 70 years depending on the environment and how well it is maintained. Homes closer to the coast may see shorter lifespans without the Ultra grade.
Is Colorbond suitable for coastal homes near the ocean?
Yes. Standard Colorbond handles most coastal suburbs. If your home is within 500 metres of breaking surf, BlueScope recommends Colorbond Ultra for extra corrosion protection.
Can I install Colorbond over my existing tiles?
In most cases the old tiles need to come off first. The battens and spacing for tile and metal roofing are different, and installing over tiles can trap moisture and hide structural problems.
What warranty comes with Colorbond roofing?
BlueScope offers product warranties that vary by profile, colour and installation environment. Your roofer should also provide a separate workmanship warranty.
Does Colorbond reduce heat inside the house?
Colorbond’s Thermatech technology reflects more solar heat than standard painted steel. Lighter colours reflect the most, which helps keep the space underneath cooler in summer.
Can a Colorbond roof be repainted?
Yes. If the surface is starting to fade or you want a colour change, a Colorbond roof can be recoated with a quality roof paint system. This is what a Colorbond roof repair or restoration typically involves.
