Okay to place screws right into your roof covering?
https://www.bookmarking-fox.win/are-50-year-shingles-worth-the-money-it-depends
Area nails in the 3 tab shingles concerning 3/4 inch (1.8 centimeters) above the cutouts, near where the tab fulfills the upper component of the shingle. Also position a nail 2 inches from each end of the tile,