Roof painting in Australia: tile and metal, explained

A roof is its own job, and the surface underneath decides everything

Roof painting is one part of painting a house. If you're doing the whole place, the house painting guide shows how the parts fit together. But the roof plays by its own rules, so it helps to take it on its own.

The job is shaped by one thing above all: what your roof is made of. Concrete or terracotta tile behaves nothing like Colorbond or metal, and that single fact drives the prep, the paint and the price.1DuluxView source So this guide is laid out the way the decision actually runs: what's it made of, what does that mean for cost, will it last, and who should do it. Each part gets a short section below, and where there's a full guide that goes deeper, you'll find the link to it.

One idea carries through all of it: a roof finish lasts because of the prep underneath, not the colour on top. Get the surface right and the paint holds; skip it and even good paint lifts within a season or two. Let's start with the split that matters most: tile versus metal.

Colorbond and metal roofs need a bonding primer; tile and metal are not the same paint

Here's the split, in plain terms. A Colorbond or metal roof needs a dedicated metal bonding primer over a properly cleaned surface before any topcoat goes on; without that primer the paint can't grip and it lifts.1DuluxView source A tile roof is the other problem: it's porous, so it needs cleaning and sealing so it doesn't drink the paint or let it peel later. Same word, 'roof', two genuinely different jobs.

That's as far as this page takes it, because the metal-roof question has real depth: which primer, how the surface is cleaned, why Colorbond is fussy, and what the finished system looks like. The full Colorbond and metal roof guide walks through all of that and answers whether you can paint your metal roof at all. If your roof is metal, start there.

If your roof is tile, the same principle holds: the surface is cleaned and sealed to suit the substrate, and the painter matches the system to your roof on the day. Either way, the substrate is the first thing a good painter looks at, and it's the first thing that shapes your quote.

What a roof costs comes down to four things, and the paint tin is the smallest

Once you know your surface, the cost makes more sense. Four things move it more than the paint does. The surface (tile or metal) sets the system. The roof's condition comes next: a sound roof is a simple recoat, while a rusting, flaking or mossy one needs far more prep before any finish goes on. Then there's access: the height, the pitch, and how a painter can safely reach the roof. And last, the total area.

Put those together and you can usually see why two roof quotes differ: it's almost always condition and access, not a dearer paint. The full breakdown of each driver lives in the roof painting cost guide, so that's the place to go for how the numbers are built.

Your real number depends on your own roof, so the most useful thing is a range built from it rather than a headline figure. Use the live estimate below to get a fair-price range for your roof, then see the full driver-by-driver breakdown.

What will your roof painting cost?

How long a roof finish lasts rides on the prep, not the colour

How long does roof paint last? There's no fixed number. It depends on the product, how well the roof was prepped, and how it's looked after. It also depends on where you live: coastal salt air and high sun work a roof's paint much harder than a sheltered inland spot does.

The clearest proof comes from the makers. A premium exterior system like Dulux Weathershield is guaranteed not to peel, flake or blister 'for as long as you live in your home', but only when it's 'applied and maintained in accordance with the product instructions, to a suitable and sound substrate'.3DuluxView source Read that the other way and it tells you the whole game: the durability rides on the prep and the upkeep, not on the colour you choose.

So the practical takeaway is to repaint when the roof tells you (when the coating is chalking, fading or lifting) rather than on a calendar, and to treat the cleaning and prep as the part you're really paying for.

Roof painting is a licensed, work-at-height job: get it priced, don't climb up

There's one more thing that sets roof painting apart from the walls: it happens at height, usually with pressure-cleaning first. Work at heights is regulated in Australia, and the rules require proper fall-prevention controls, because falls are one of the leading causes of serious injury in this kind of work.2SafeWork NSWView source That's exactly why it isn't a weekend job.

So the safe and practical move is to have the roof looked at and priced by a licensed painter, who brings the right access gear and matches the coating system to your roof. A good painter will tell you whether the roof is sound enough to paint or whether something underneath (a rusted sheet, a cracked tile, a leak) needs another trade first.

If that bigger repair turns up, it's priced as its own job; the painting follows once the surface is sound. The point of this guide is to get you to that conversation knowing the shape of the job, not up a ladder finding out the hard way.