Depending on the type of dormer you have installed a couple of different gutter situations may be available.
Rain gutters on dormers.
Once you get the hang of it gutter cleaning isn t that bad and you ll feel great when it s done.
Gutters are open at the top to catch rainwater flowing off the roof directing it into the downspouts.
Leaving gutters off altogether may not be the wisest idea because the rain dripping off of the edge will wear on the roof below it.
It is very common for dormers and other roof structures that have gutters above the level of the gutters on lower portions of the roof to empty onto the roof surface.
You can do this by mounting a gutter hanger.
The water is allowed to run on the roof surface and is collected by the lower gutters.
Once the gutters are clear repair any sagging metal.
In this first picture one can see.
Should the dormers have gutters and downspouts.
Gutters are the horizontal metal usually aluminum part of the system that are usually installed along the eave edges of your roof or along roof features like dormers.
The dormers are gable type having 3 visible fascias and do not have gutters or downspouts.