Thread: Rain diverter
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Old 07-31-2022, 03:03 PM   #7
DickR
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The places where a roof slope intersects a vertical wall must have step flashing on the wall at each course of roofing, or an equivalent installation for keeping water from getting under the courses of wall siding. At each place where an intersecting roof slope ends in the middle of a wall section, such as at the upper right corner of the red rectangle drawn on your photo, there should be kickout flashing at the lower edge of the roof section, to throw the water out away from the wall siding below. Do a search on "kickout flashing" and you'll see a great many commercial products and videos showing installation. You can fabricate your own flashings from sheet metal.

Here is but one reference, with video and diagram: https://www.americanflashings.com/jd-out-flashing

Here is another article, by Mike Guertin, a frequent contributor to magazines like Fine Homebuilding and Journal of Light Construction: https://www.jlconline.com/training-t...n-overlooked_o
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