Yes, but only if it’s done properly and with care

“You can install solar panels on a slate roof—but it’s not a DIY job or something to leave to a general roofing contractor. The material is delicate, the weight matters, and heritage requirements may apply. But with the right team, it can absolutely be done—and done well.”

Why Homeowners Are Asking

As energy costs rise and more Australians look for sustainable options, solar panels are becoming a standard feature in many suburbs, including those with historic slate roofs. And that raises a valid question: Can you combine one of the oldest roofing materials with one of the newest technologies?

The short answer is yes. But the real answer is that it depends on how the work is done, who does it, and whether your roof structure can support it.

Let’s walk through what matters.

Slate Is Strong, But It’s Not Indestructible

Slate tiles can last for over a century. That’s part of what makes them such a great roofing material. But while they’re tough against weather, they’re brittle under pressure, which means that walking on a slate roof,or fixing solar panels to it, requires specialised experience.

Standard solar installers often aren’t trained to work with slate. Drilling into tiles, using the wrong mount, or simply misplacing foot pressure can crack slates and compromise the roof. That’s why any solar installation on a slate roof should involve a master slater who understands how to protect the material during the process.

The Weight Question: Does Your Roof Need Reinforcing?

Solar panels add extra weight to any roof. While slate tiles themselves are already heavier than most modern roofing materials, older homes in areas like Paddington, Glebe, or Mosman were often built to handle that weight.

Even so, it’s always best to check. A structural inspection will confirm whether your existing roof framing can safely support the load of modern solar panels, especially if the roof is more than 80 years old or has had water damage or timber deterioration in the past.

A combined assessment by a slate roofing specialist and a solar provider is often the best way to get a clear picture before committing.

What About Heritage Homes?

Here’s where things can get a little more complex.

If your home is in a heritage conservation area, or if the property itself is heritage-listed, you’ll need to ensure the solar installation meets council requirements. This often includes:

• Keeping the panels hidden from street view
• Matching the pitch of the roof
• Ensuring no original materials are damaged

It’s not a flat-out no, but it does mean you’ll need a team that’s familiar with local regulations and able to coordinate with heritage consultants if necessary.
Some councils may have fact sheets – See the Hawkesbury Council guidelines

Slate and Solar: A Naturally Eco-Friendly Match

Here’s something people often overlook: Slate is already an environmentally responsible choice.

• It requires very little processing
• It lasts for 100 years or more
• It’s completely recyclable
• It reduces landfill compared to other roof types

Pair that with solar, and you have a home that’s energy-efficient and built to last. It’s one of the few combinations that respects both tradition and progress.

And it performs beautifully in Sydney’s climate. Slate reflects heat in summer, insulates well in winter, and won’t warp or decay like synthetic options. That means your panels are mounted on a roof that won’t degrade beneath them.

Want to Add a Unique Detail While You’re at It?

If you’re re-roofing or restoring as part of your solar upgrade, it’s worth asking: Could we add a little more character while we’re at it?

It’s not unusual for Sydney slate roofs to include small design elements like fish scale rows, contrasting patterns, or even reclaimed slate tiles that help your new roof blend beautifully with the old.

This is your chance to do both,bring in solar, and restore or enhance your roof at the same time.

Key Takeaways Before You Commit

• Yes, you can put solar panels on a slate roof
• You’ll need a slate roofer and solar team working together
• Always check if your roof structure needs reinforcing
• Heritage homes may require council approval
• Consider combining installation with a roof inspection or restoration
• Slate and solar together make a smart, sustainable investment

Thinking About Going Solar on Your Slate Roof?

Talk to us at Slate Roof Restorations, we know slate and we can assess your roof, help you prepare it for solar, and work alongside your solar provider to make sure your tiles are protected every step of the way.

Whether your roof is 100 years old or newly installed, we’ll help you get the best out of both worlds.