The skylights on a recent project in the Summerhill neighbourhood in Toronto, were not replaced, however Toronto Roofing employs a policy ensuring all metal flashings are replaced regardless. According to manufacturers specifications, the correct installation of a complete roofing system requires this. You won’t ever see us reusing old material. A common area for contractors to cut corners and try to save themselves money is by reusing old flashing. This is something you should clarify when discussing the cost and quality of your pending installation.
Flashing, as seen in the diagrams below, is a thin piece of sheet metal in this case, that prevents water penetration and directs the flow of water off the walls, chimney, skylights and the roof, toward a gutter system.
Following are more examples of the high quality metal flashing work completed by TorontoRoofing.ca