As the name suggests Roofers work on roofs, they build, repair or replace roofs.
There are a number of different finishes and styles in tiles, whether concrete, fibre cement or natural slate. Roofers can also fit sun pipes which allow daylight into awkward places, on the roof it looks like a glass bubble, this is fitted over a highly polished pipe which directs the daylight into the dark area.
Another area that roofers work on is the installation of roof windows, like Velux windows.
Other trades may work alongside the roofer, the carpenter for some of the structure or the plumber for the drainage or the fascia and soffit fitters.