The rents needed a new roof lately, I showed them the stats for surfmist compared to dark colourbond (which they wanted initially)
But they settled on zinc-alum which is not quite as good as surf mist for the heat, but much cheaper and still good.
They're in North West Victoria, hits 45 all the time in summer and weeks of 35+ easy.
Got an aliexoress one, carbon one side, texture the other. PETG doesn't work on the carbon side, but for textured side I love it.