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.
Rain gutters on dormers.
Now that you know how to clean out gutters be sure to add it to your to do list at least once a year.
The water is allowed to run on the roof surface and is collected by the lower gutters.
Should the dormers have gutters and downspouts.
In this first picture one can see.
Runoff from the dormers will slowly erode granules of the main roof at the dripline especially where the dormer eves are highest and runoff falls the farthest before hitting the main roof where runoff will.
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.
Depending on the type of dormer you have installed a couple of different gutter situations may be available.
Once the gutters are clear repair any sagging metal.
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.
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