I'm curious how the roof is constructed on your cinder block house. That kind of cinder block construction seems obviously superior to me, but I can't think of any roof that would be so obviously superior.
There are a LOT of fireproof roofing materials; the US is quite strange in covering most houses with these asphalt shingles. Clay/concrete tiles are pretty standard; slate or metal also options. There are presumably different ways of dealing with the gaps and ventilation to keep out embers.