A drip edge is an L-shaped metal flashing installed along the eaves and rakes of a roof to direct rainwater runoff safely away from the vulnerable wooden fascia boards and exterior siding. By extending past the roof deck and overhanging directly into the gutters, the drip edge prevents water from curling backward under the shingles, stops moisture from infiltrating the roof deck edges, and provides a clean, professional finish while keeping pests out of the attic space.
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