Catching valley's flow off diagonal roof

by Paul
(Denmark, Maine)

A dormer over our front door diverts rain to the dormer's sides, from where it proceeds down the slope of the main roof. On the left side I think I can catch the flow off the roof by installing a gutter. I have a horizontal eave to work with, and can move water along the gutter to a downspout farther left. How can I catch the flow off the right side? There water from the valley at the sloped base of the dormer shoots out off the roof in a stream. The eave for that section of roof drops diagonally, sloping down to the left.

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Sep 16, 2018
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by: Jim

You would need to install a section of gutter over the front porch and extend it past the left valley by about 12 inches. then install a vertical splash guard onto the gutter front lip in the area of the valley. This splash guard will then deflect the water runoff into the gutter. You would then drain that section of gutter into the gutter on the left side of the porch. Hope this helps.
Jim

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