From early spring to late fall, roof repair crews can be seen at homes. Once winter comes, however, there are fewer roofers at work.

The roof is one of the most valuable parts of a home as it protects the rest of the building. But even the strongest roofs don’t last forever. No matter how well they’re taken care of, roofing materials deteriorate after decades of weather exposure, and home or building owners will need to tackle reroofing eventually.