With access being found at the very top of the stairs in the asylum, the roof is the second highest point on the island. As the only people who ever needed access to the roof were workmen, there's no fencing of any kind, meaning a long drop is only a slip away. The roof itself is covered in moss and weeds; this combined with parts of it being sloped at steep angles and a significant amount of loose tiles and bits of roofing falling away make navigating it a treacherous prospect. There are, however, flat spots of roof that contain the power junctions for the asylum's electricity, offering anyone trying to navigate the roof a chance to rest.