Roofs come in different shapes and sizes. However, the most noticeable difference is the slope, dividing roof types generally into two: pitched and flat. With this one characteristic come major differences such as how the roof functions, how often you’ll need roofers, and many more.
As to the maintenance of pitched roofs, specifically, there are both advantages and disadvantages to it. Because of the slope, it is more difficult to clean and inspect a pitched roof. Special equipment is needed to keep the people doing the task safe. Great Home also points out that out that, except for minor repairs, work on pitched roof almost always needs scaffolding.