Has your roof seen better days? Choosing between re-roofing and a roof replacement may sound like similar options, but you’ll need to factor in your budget, the state of your roof, and your needs. Read on to find out which option is right for you.

It’s easy to forget about your roof… until problems start appearing.

Whether you’re dealing with frustrating leaks, damaged tiles, or a suspicious sagging shape that leaves you feeling nervous, there are ways to update the strength and appearance of your roof.

These come down to re-roofing or a roof replacement.

Each option has its own pros and cons, as well as its own financial implications, so we’re comparing the pair and making your choice easy. If your roof has seen better days, don’t put off fixing it until things get worse.

Here’s everything you need to know about re-roofing vs. roof replacement in Brisbane.

If you want to learn more about roof replacement, check out our other resources:

1. How Much Does Roof Replacement Cost?

2. How To Choose The Best Roof Replacement Provider

3.How Long Does Roof Replacement Take?

4. How To Know When Your Roof Needs Replacing

What is Re-Roofing?

Re-roofing refers to updating your Brisbane home or business’s roof without removing the entire roof.

What does this mean in a practical sense?

Well, this project occurs when you replace the damaged roof deck without lifting existing shingles. The base layer stays as it was while the upper layer – the one taking the brunt of Brisbane’s sun, rain, and other elements – is replaced.

This upgrade provides a protective layer on top of your damaged shingles, but there is a catch!!! Well, several catches actually…

Firstly, adding a new layer of roof shingles effectively doubles the weight of your roof. When your roof weighs 2x as much, that places pressure on your roof structure. For this reason, many building codes will limit the roof to two layers.

Secondly, if the base layer is too damaged or is not in a suitable condition, then this option may not be possible. Again, this may pose structural risks.

If this is the case, you may need to consider roof replacement.

OK, what is Roof Replacement?

As the name suggests, roof replacement goes a step further and tears off all old materials (down to the decking) and installing all-new components. This includes new underlay and new shingles.

A full replacement can be done no matter how many layers of singles you have. You’re removing the roof and starting from scratch, so this gives you greater flexibility and control over the finished roof.

Re-roofing vs. Roof replacement compared

Re-Roofing Roof Replacement

Shingle overlay placed on worn shingles

Protective layer without full replacement

Improved aesthetics

New shingle layer adds weight

Not all materials support it

Fast and expensive

All shingles are stripped from the roof

New underlayment or felt is installed

New shingles installed

New guarantees and warranties

Enjoy completely new aesthetics

More expensive but longlasting

Which option is more expensive?

Price is a significant consideration when it comes to your roof, so it helps to know whether this type of project is going to hit your budget harder.

Generally speaking, re-roofing is cheaper than replacing an entire roof.

However, there are a number of variables to take into account. You’ll need to factor in the size of your roof, materials, and the pitch of your roof. As rough averages, you can expect to pay between $50 to $70 per m2 for steel roof, $80 to $100 per m2 for terracotta tiles, and $200 to $500 per m2 for slate tiles.

The same costs apply to a roof replacement, but you’ll need to factor in the cost of labour to remove all old tiles or the material. The cost will also include the expertise required to prepare your roof deck and install a new roof. For these reasons, roof replacement is a more expensive option.

Access our Premium Price Guide Here >>> ‘How Much Does Roof Replacement Cost in Brisbane?’

How long should a Brisbane roof last?

Your roof should be long-lasting and durable to stand up to Brisbane’s changing weather, without putting pressure on your budget for repairs and maintenance. The average lifespan of a roof will come down to the type of roof above your head.

Here’s a recap of how long the most popular materials should last.

  • Slate Tile: Hard slate can last up to 75 years or more. Slate is one material that shouldn’t need to be replaced in your lifetime, though regular maintenance checks can help spot small problems and keep your roof healthy and strong.
  • Metal: Roofs made of copper or zinc are highly durable, with a lifespan of up to 100 years. Aluminium is another durable choice that is engineered to stay strong for five decades and up.
  • Terracotta: Terracotta tiles typically last up to 50 years or the entire lifespan of your time spent in a home.
  • Wood: Wood roofs have the most problems among all roof types. Water damage, mildew, mould, and rot can all impact your roof’s lifespan, although it is possible to enjoy 20 years with proper care and maintenance.

Learn more about re-roofing options here:

How to choose between re-roofing or roof replacement?

Your roof does more than keep you and your family safe and dry.

Did you know a new roof can return up to 85% of its cost upon resale? Throw in the insulating abilities of a modern roof to keep energy costs down, and the peace of mind that comes with a solid roof, and there are plenty of advantages to choosing the right roof upgrade.

Generally speaking, roofs with minor damage or leaks are a prime candidate for re-roofing. This approach will keep your costs down while improving the state of your roof. In contrast, a roof that’s significantly damaged, rotting, or structurally weak is a prime candidate for replacement.

To sum up:


Is your roof near the end of its lifespan but still in good shape?

Re-roofing might be right for you

Is your roof structurally damaged or using two shingle layers already?

Roof replacement might be right for you

Let us help make your next home improvement project simple

Choosing whether to re-roof or replace looks easy on paper… but is much harder when you start to unpack each option.

A choice as (seemingly) simple as cost-effective asphalt shingles needs to be carefully considered. Although aluminium or slate tiles will cost more, they’ll also last longer and end up being more economical over time.

We have a wealth of experience helping Brisbane home and business owners find the solution that suits their needs and budget. If a product isn’t good enough for the roof over our heads, we won’t recommend it for you. And with a 7-year warranty on all complete projects, peace of mind comes standard with every service.

If you need help deciding between re-roofing or upgrading to a wholly new roof, get in touch on 0432 660 047 or request a 100% obligation-free quote online.