Roof restoration vs roof replacement: which do you need?
How to decide between restoring and replacing a tiled or metal roof in Australia — condition, age, structure, cost factors and questions for your roofer.
Key takeaways
- Restoration renews a roof whose structure and main material are still sound.
- Replacement is for roofs with widespread failure, rust-through or structural problems.
- An honest roofer will show evidence either way before you decide.
What restoration involves
A restoration typically includes cleaning, replacing broken tiles, rebedding and repointing ridge capping, fixing flashings and applying a protective coating. On metal roofs it can include replacing screws, treating surface rust and recoating.
When restoration usually makes sense
Restoration is usually the better option when:
- Most tiles or sheets are intact and structurally sound
- Problems are localised, such as ridge capping or a few broken tiles
- Rust on a metal roof is on the surface, not rusted through
- The roof frame and battens are in good condition
When replacement is likely
Replacement is more likely when many tiles are porous or breaking, metal sheets are rusted through, leaks keep returning in different places, the frame or battens are damaged, or the home is being renovated or extended anyway.
Asbestos in older roofs
Some older homes have asbestos cement roof sheeting. Do not water-blast, cut, drill or walk on it. Removal and any work on it must be done by licensed asbestos removalists under state rules.
What changes the price
Roof size and pitch, height and access, material, the number of broken tiles or sheets, flashings, gutters, and any structural repairs all affect the quote. Ask each roofer to itemise what is included so you can compare.
Compare options
Ask for a written assessment with photos and both options priced where relevant. You can post a roofing job free on Fixit247 and compare up to 3 obligation-free quotes from verified roofers, where available.
General information only, reviewed for Australian conditions. Rules differ between states and territories and change over time, so confirm details with the relevant regulator. Call 000 in an emergency. Editorial policy
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