Which type of flashing is specifically installed at the juncture between the roof sheathing and the roof covering?

Drip edge flashing is specifically designed to be installed at the juncture between the roof sheathing and the roof covering. Its primary purpose is to direct water away from the roof and prevent it from seeping underneath the roofing material. The drip edge is typically located at the eaves and rakes of the roof, extending slightly beyond the edge of the sheathing to allow water to flow freely off the roof onto the gutters or away from the building.

This design helps mitigate water damage and enhances the longevity of both the roofing material and the underlying structures. Drip edges also aid in preventing moisture from wicking back up under the roofing materials, which can lead to rot and other structural issues over time.

Other types of flashing, such as concealed flashing, valley flashing, and tie-in flashing, serve different purposes in specific areas of the roofing system but do not specifically address the juncture between the roof sheathing and covering in the same way as drip edges do.