Water doesn't just fall off a roof — surface tension makes it cling to the shingle edge and wick backward onto the fascia board and the edge of the deck. Drip edge breaks that path: an L-shaped strip of metal runs along every edge of the roof, extending past the wood so water drips free into the gutter. At the eaves it goes under the underlayment; along the rakes it goes over it, so every layer sheds downhill.
Why it matters in Douglas County
Multiply that little curl of clinging water by 30–33 inches of rain a year and roughly 130 wet days, and the edge of a roof without drip edge stays damp most of the winter. The fascia and the outer inch of decking are usually the first wood on a Roseburg-area roof to rot — and drip edge is the cheap piece of metal that protects both.
When it fails, what it costs you
Plenty of older Umpqua Valley homes were shingled with no drip edge at all. The telltale signs: peeling paint on the fascia, water sheeting behind the gutter in a storm, or a punky, soft deck edge you find during a gutter cleaning. Left alone, rotted edge decking and fascia add real money to a future reroof. Every roof replacement we do includes new drip edge on every run — it's code, and it's common sense.
Does an older home need drip edge added?
If your roof doesn't have it, yes — at minimum when the roof is next replaced, since current code requires it. It can also be retrofitted along the eaves in many cases, which is worth doing if fascia rot is already starting.
Related terms
Eave · Rake · Fascia · Gutter apron