[nota]

fail to under stand why our roof tech is about 2500 years old
the romans used tile roofs

and with 185 mph storms we need way better ideas
even the metal thin steel roofs do NOT look to me to be enough for 185

one idea I may do soon
is a 3 layer plywood 3/4 each SCREWED AND GLUED ROOF with NO openings
my 1200sf roof would cost about 2500 in wood to add two layers with A/C PLY staggered seams
that way you get an effective plywood single piece roof that is waterproof and strong
maybe another 1000 to get the screws and glue and paint
that is how the high end Bahama homes are done and they survive 140-150 mph storms

but stupid local codes still want the unneeded tar paper and tile or even more un-needed
shingles on top of the sealed ply layers, just stuff that are proven to blow off over 120 or so winds
and need thousands of nails I would rather not have in a roof to rust and fail and leak

I would do the screw tops with a plug like an old wood boat hull to seal them
and use coated screws like a top-con for strength and rust resistance
then just paint the roof white to lessen heat transfer