Great information. It looks like the same language "independent of any final cleaning at the end of the job if warranted" is also found with the removal of shingles and felt. Shouldn't the same reasoning be applied here? My subs do a great job cleaning up after the job picking up obvious debris. What isn't obvious are all the nails around the perimeter of the home that can be hidden in grass, flower beds, window wells, weeds, etc. I've found them 20+ ft from the home. They go back with magnets for a final cleanup of these nails. I also go back for a final cleanup for the nails to prevent injuries of someone stepping on them. Probably takes the 4 guys .5 hours with my subs and an extra hour for me. Also, the removal of shingles and felt disposal does not include disposal of new materials waste like waste from new shingles, ridge/hip cap (new and old), drip edge, turtle vents, flashings, packaging's, etc. It takes extra time to clean up and dispose of these materials.