Concrete vs Terracotta Roof Tiles: How Each Is Restored

Quick answer: Concrete and terracotta tile roofs are restored differently. Concrete tiles are porous and lose their surface colour, so they are cleaned, repaired, sealed and recoated with two colour coats. Terracotta tiles keep their natural fired colour, so they are cleaned, repaired and repointed, then painted over a terracotta primer if you want a fresh or new colour.

From the street, most tile roofs look alike. On the roof, concrete and terracotta behave very differently, and using the wrong process on either one wastes money. This guide explains how to tell which you have, how each is restored and what it costs in Melbourne.

How to tell concrete from terracotta

• Colour. Terracotta is naturally orange to red-brown, and the colour runs through the whole tile. Concrete tiles come in many colours, applied as a surface coating.
• A broken edge. A chipped concrete tile is grey inside. A chipped terracotta tile is the same clay colour all the way through.
• Ageing. Old concrete tiles fade to a dull, patchy grey. Old terracotta holds its colour but collects lichen and dark staining.
• House age. Many pre-1970s Melbourne homes have terracotta. Concrete became the common choice in later decades.

If you are not sure, a roofer can tell you in seconds.

Concrete vs terracotta restoration compared

How concrete tile roofs are restored

Concrete tiles rely on their surface coating. Once it wears away, the tile absorbs water, grows moss and looks patchy. Restoration renews that protective layer.

1. High-pressure clean to remove moss, lichen and loose old coating.
2. Replace cracked and broken tiles.
3. Rebed and repoint the ridge caps with flexible pointing.
4. Repair valleys and flashings.
5. Apply a sealer or primer coat to seal the porous surface.
6. Apply two colour coats of roof membrane.

A concrete tile restoration lets you change the roof colour completely. It is the most common restoration in Melbourne’s south-east.

How terracotta tile roofs are restored

Terracotta’s colour is fired into the clay, and many terracotta tiles have a glazed finish. Ordinary paint doesn’t grip that surface well, so we paint terracotta roofs over a terracotta primer. It gives the colour coats something to bond to, whether you keep the original colour or choose a new one.

1. Careful pressure clean to remove lichen, moss and grime and bring back the natural colour.
2. Replace broken tiles with matching profiles, often sourced second-hand for older roofs.
3. Rebed and repoint the ridge caps with flexible pointing, in a colour matched to the tiles.
4. Repair valleys and flashings.
5. Prime and paint with a terracotta primer, then two colour coats.

Unglazed terracotta takes the same terracotta primer. We check the tiles first and tell you honestly whether painting is worth it on your roof.

Common problems with each tile type

Concrete tiles

• Faded and patchy colour
• Porous surface and heavy moss growth
• Tile grit washing into the gutters
• Cracked pointing and loose ridge caps

Terracotta tiles

• Lichen and black staining
• Brittle tiles that crack underfoot
• Fretting, where the surface flakes, on older or salt-affected tiles
• Difficulty matching replacement tiles
• Cracked pointing and loose ridge caps

Both types share the same weak point: the ridge capping. Rebedding and repointing are part of almost every tile roof restoration.

What does tile roof restoration cost?

In Melbourne, a tile roof restoration typically costs $4,200 to $11,550, with most average homes around $7,900 in 2026.

How the two tile types compare:

• Concrete restorations include three coats, so coating materials and labour are a large part of the price.
• Terracotta restorations get a terracotta primer and two colour coats, like concrete. The extra care needed to work on fragile tiles, and the cost of sourcing matching replacements, can add to the price.

Roof size, pitch, height, access and the number of tiles and metres of ridge capping to repair affect both.

Restore or replace?

Both concrete and terracotta tiles can last for decades, so most tile roofs are good restoration candidates. Consider replacement when:

• A large share of the tiles are cracked, brittle or fretting
• Matching replacement tiles can no longer be found
• The battens or roof frame are damaged

Our guide to roof restoration vs roof replacement covers this decision in detail.

Frequently asked questions

Can you paint terracotta roof tiles? Yes. We paint terracotta roofs over a terracotta primer, which gives the colour coats something to bond to on glazed and unglazed tiles.

Which lasts longer, concrete or terracotta tiles? Both last for decades. Terracotta often lasts longer and keeps its colour, while concrete needs recoating every 10 to 15 years to stay protected.

How much does tile roof restoration cost in Melbourne? Typically $4,200 to $11,550, depending on roof size, condition and tile type. Most average homes are around $7,900.

How do I know if my tiles are concrete or terracotta? Look at a chipped edge. Concrete is grey inside. Terracotta is the same orange or red-brown clay colour all the way through.

Can terracotta tiles be pressure cleaned? Yes, by a professional who adjusts the pressure and walks the roof carefully. Old terracotta is fragile, and incorrect cleaning can damage the tiles.

Get a free roof inspection

Not sure which tiles you have, or what they need? Eminent Roofing & Restoration restores concrete and terracotta tile roofs across Melbourne’s south-east. Book a free inspection and an itemised quote. There’s no deposit: you pay 50% at the halfway point and 50% on completion, and every full restoration comes with a free gutter clean.

Get a free quote → or call 0451 200 159.

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