Materials came in by crane from the back alley, and guard rails went up at the edges. We cut out and repaired every bubble and blister in the old membrane, cleaned and primed the surface, and reinforced the repaired areas with a base sheet.
Then the new cap sheet was torched down across the whole roof and up the walls and rooftop-unit curbs. Three new copper drains and new plumbing stacks went in, and the edge metal came off and went back on.
