What Does Drip Edge Mean?
Drip edge refers to a metal protrusion located at the corner of a roof used to redirect rainwater and moisture accumulation away from the structure. It is vital to prevent surface corrosion since the presence of stagnant water facilitates the formation of an electrolytic cell environment.
Corrosionpedia Explains Drip Edge
When installed properly, a drip edge provides important support that may help extend the life of a structure. Such protection includes:
- Deck and fascia board safeguarding against unwanted movement, pests and small animal infiltration
- Repulsion of wind-driven rain and particulate matter
- Improved efficiency of water-shedding and protection of treated wood surfaces
- Reduction of moisture pooling or ponding that results in the formation of corrosion causing electrolytic environments