Thanks for the reply, I agree the pea gravel was a good idea. Sun damage is our biggest hitter here with roof damage. Unfortunately, there is uncovered roofing around the perimeter that will probably be the first place to fail.
I found this video that shows torch down, self stick, cold weld mod bit if anyone has a half hour to kill: https://www.youtube.com/watch?v=asnX_DtJDZ8
Based on the video, I think this is probably torch down, but I only saw bleed out on some of the seams.
Also, on the white coated section you can see that there are many fasteners telegraphed through. I’m guessing they this is only 2 plys total and they filled the base sheet full of holes.
Again, I am not trying to stick it to anyone for doing a bad job or a homeowner trying to get a discount. I am just another contractor trying to get up to speed on best practices and when/if this type of roofing is still relevant.