Come to Florida and I will show you what rainy, muggy and hot really is.
Is that a tar and gravel roof?
Oh I know, but this year in Michigan has had some amazing nasty stretches of 90-95 with high humidity and way above average rainfall. Strange happenings with the creatures and plants too. Last year, we had huge frogs everywhere. This year, barely any and the ones that are around are tiny. Everyone's lawns are jacked from out of control weeds.
I think it's EPDM with a gravel layer on top.