Roof tear off - check.
Felt paper down - check. And PV track bolts set, ready for flashing - check.
Shingles & bolt flashing installed - check.
This (with, as you may well imagine, lots of banging around right over our heads) continued day 4, 5 and 6. (Hey, things (a) take longer in Hawaii; (b) take longer with a one-man crew; and (c) take longer when the sun is out and it's something like 600 degrees upon the roof.)
Day7: New roof finally done. Amen! We have these passive roof vents at each interval and an end gable so the hot air can flow out. Ahhhhh.
And the good news is, that pounding over head has stopped!