Not every roof is the same when it comes to solar, and the type of roof you've got plays a bigger part in the process than most people expect. It's not something you need to become an expert in, but it helps to know roughly what's involved before you get a quote.
The most common roof types we see
Most homes in New Zealand have one of a few roof types: corrugated iron or colorsteel, concrete or clay tile, or in some cases a flat or low-pitch membrane roof. Each one is workable for solar, but they're not identical to install on. Iron and colorsteel roofs tend to be the most straightforward, mounting is a well understood process. Tile roofs take a bit more care, individual tiles often need to be lifted or worked around rather than simply mounted onto, which can mean more time on site. Flat or membrane roofs are less common but not unusual, and generally need a different mounting approach altogether since there's no natural pitch to work with.
Why it matters more than people think
None of this means one roof type is better than another for solar, it mostly affects how the job gets done, how long it takes, and sometimes the cost. A quote that doesn't account for your specific roof type properly is one worth questioning. It's a sign the quote might have been put together without anyone actually looking closely at your roof.
Older roofs need a bit more care
Homes built before the 1990s sometimes have roofing materials that need extra care to work with safely. It's not something to worry about needlessly, but it is something a good installer should ask about and handle properly, not skip over.
Roof condition matters just as much as roof type
Roof type is only half the picture. The condition of your roof matters just as much, sometimes more. A roof that's getting close to needing replacement isn't the ideal candidate for solar right now, regardless of what it's made of. Putting panels on a roof you'll need to redo in a few years is an expensive order of operations, and it's something worth sorting out before solar rather than after.
What this means for you
If you're getting quotes for solar, it's worth asking directly how your specific roof type factors into the plan, not just the system size and panel count. This is really what a proper site assessment is for. It's not just about confirming you've got a roof, it's about understanding what that roof actually needs.
It starts with the roof
Your roof is the foundation the whole system sits on, quite literally. It's worth a bit of attention before you commit to anything, and a good installer should be the one raising it with you, not the other way around.
Wondering what your roof means for your solar options?
Steel Solar & Electrical has spent close to two decades in the electrical industry and well over a decade in solar, working across all the common roof types you'll find on New Zealand homes. We'll always come out and take a proper look before recommending anything. Get in touch with us to book in your free assessment.
steelelectrical.co.nz | 0508 2 SOLAR
