Sidewall Flashing
Base flashing installed against a vertical wall can be continuous or step flashing. It should be at
least 4 inches in height and 4 inches in width. It must direct water away from the wall onto the roof
or into a gutter. If siding is installed on the vertical wall, the vertical part of the base flashing should
be continuous under the siding.
License
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If you are aware of any person or entity using any InterNACHI image or intellectual property without authorization, please contact InterNACHI.
