What installers actually assess, and what might need attention before you go solar.
You’ve been reading about solar for months and you’re ready to get quotes. Before you do, it helps to know what installers will look at. If you’re asking ‘is my roof solar ready?’, here’s what determines whether your home is a good candidate and what might need attention first.
Key highlights
- North-facing roofs produce the most solar energy over a year in Australia
- Shading should be checked across all four seasons
- Roof age and condition matter for a decades-long system
- Mounting varies by roof material
- Older switchboards or meters may need an upgrade
What does checking ‘is my roof solar ready’ look like?
You can do a quick self-check before any installer visits. It won’t replace a proper site assessment, but it helps you ask better questions and spot issues early.
Your action checklist
- Note which direction your main roof faces
- Watch for shadows from trees, chimneys and neighbouring buildings at different times of day
- Check the age and condition of your roof
- Identify your roof material (tile, tin or other)
- Look at the age of your switchboard and meter
- Ask installers for a shading analysis across all seasons
Why roof readiness matters before you install
Solar panels are designed to last decades, with quality panels typically warranted to deliver 80%+ of their output after 25 years, so it’s worth checking your roof doesn’t need replacing or major repairs in the near future. Removing and reinstalling panels later adds unnecessary cost.
Example scenario: a homeowner with an older tiled roof gets the roof inspected first, completes minor repairs, then installs solar, avoiding the cost of removing panels for repairs a few years later.
Is going solar doable for your home?
Key takeaways
- East and west-facing roofs still work well, typically producing only 10–15% less than north over a year
- Shading changes across seasons
- Fix roof issues before panels go on
Is my roof solar ready? The checklist in detail
| Factor | What’s assessed | What it means for you |
| Orientation & angle | Which way the roof faces | North is best; east/west lose ~10–15% a year but suit morning or evening use |
| Shading | Shadows across all four seasons | Reduces output, sometimes only seasonally |
| Roof age & condition | Repairs or replacement needed soon | Avoid removing panels later |
| Material & structure | Tile, tin or other; weight capacity | Determines mounting method |
| Switchboard & meter | Age and capacity | May need an upgrade, especially with a battery, to meet AS/NZS 5139 |
Solar readiness: what’s next?
A reputable installer will carry out a proper site assessment, including satellite or on-site shading analysis, before recommending a system size. Treat it as a normal part of getting quotes, and use this checklist to go in prepared.
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