A faded roof drags down the whole look of a house, and a chalky, porous tile roof holds moisture and grows moss. Roof painting - done properly - is really roof restoration: cleaning, repair, then a coating system. Here's what that involves and what it can't do.
What a roof repaint actually is
The typical sequence on a concrete tile roof:
- Inspection. Broken or slipped tiles, cracked ridge capping and failed pointing get identified first. Coating over damage just hides it.
- Repairs. Tiles replaced, ridge caps re-bedded or re-pointed where needed.
- High-pressure clean. Years of dirt, moss, lichen and oxidised old coating come off. This is the step that decides how long the new coating lasts.
- Primer or sealer. Bare, porous tiles get sealed so the topcoats bond and cover evenly.
- Membrane topcoats. Usually two coats of a roof membrane - a thicker, more flexible coating than wall paint, made for the punishment a roof takes.
Metal roofs follow the same logic: treat rust, clean, prime where needed, then coat with a system made for metal.
What roof painting can't fix
A coating is not structural repair. Leaks from failed sarking, sagging battens or damaged flashing need a roofer, not a painter. Tiles that are crumbling through (rather than just surface-worn) may mean the roof is near end of life, and honest advice might be to save the coating money for replacement. Any painter worth hiring will tell you which situation you're in.
How long it lasts
A quality roof membrane system, properly applied, should protect and look good for many years. Melbourne's UV and weather cycles are the test. Our guide on how long roof paint lasts goes deeper.
What drives the cost
Roof size and pitch, access, tile condition, how much repair the ridge caps need, and how much cleaning the roof needs. A steep two-storey roof with repairs is a very different job from a low single-storey roof in good condition.
Tile roofs versus metal roofs
Concrete tiles dominate the south east's estate homes and they're the most common repaint candidate: the factory glaze wears to a porous, chalky surface that holds moisture and grows lichen. Metal roofs - Colorbond and older galvanised iron - age differently: fade and chalking rather than porosity, plus rust at fixings, scratches and cut edges. Both repaint well; the products and preparation differ, and a quote should say which system it's using on your roof type.
Colour choices on the roof
The roof is up to a third of what people see from the street. Going from faded terracotta or weathered grey to a fresh charcoal or slate transforms a facade more than almost any wall colour change. Dark roof colours absorb more heat, which matters for roof-space temperatures in summer - quality membranes with heat-reflective technology moderate that, and the conversation is worth having before the colour is locked.
Safety and access are part of the quote
Roof work is height work: harnesses, edge protection on steeper pitches, and care around skylights and solar panels. A quote that's dramatically cheaper than others sometimes achieves the number by skipping safety setup. Ask how the crew will access and work the roof - a professional answers without offence taken.
Timing with other trades
If solar panels, new gutters or antenna work are on your list, sequence matters: roof coating goes last, after other trades have finished walking on the roof. Panels that shade sections get worked around; a roof painted before a solar install will have foot traffic over fresh coating. Mention the plans when you book the quote.
Aftercare for a coated roof
Once coated, a roof asks for little but rewards attention: gutters kept clear so water never ponds at the edge, overhanging branches trimmed back, an annual look from the ground for slipped tiles or cracked pointing, and early moss treated before it spreads. A roof that gets these five-minute habits routinely outlasts one that's ignored until something drips.
Choosing the contractor
Roof work rewards specialists: cleaning equipment, roof safety gear, and coating systems are a different kit from wall painting. Ask what roof systems the contractor uses, how they protect solar panels and skylights, and whether the quote separates repairs from coating. The straight answers are easy to give for someone who does roofs every week.
Call 0420 596 677 to talk through your roof - photos help us give you a straighter answer.