It has the main function of controlling water flow on the roof which has many implications.
Roof drip edge details.
Galvanized steel drip edge flashing.
Although it does not look like much this component is made to have great structural integrity.
By oatey 17 13.
Also called drip edge flashing or d metal they serve a vital function by directing water away from the fascia and into the gutter.
Drip edge is a metal flashing that tends to overhang the sides of a roof.
The drip edge also gives us a nice straight edge with which to align roof shingles slates or other roofing material.
Without a drip edge water may end up beneath the shingles and may cause damage to various parts of the home.
Drip edges are metal sheets usually shaped like an l installed at the edge of the roof.
Once all the underlayment is applied go back and place the roof drip edge flashing along the gable ends of the roof.
There is a small size metal rim facing outwards and away from the roof fascia.
Drip edge varies in dimensions but typically the flange that nails to the roof surface is about 2 5 wide and the vertical edge that directs roof runoff down and away is about 1 5 in depth.
Covering the ends of the ice and water barrier or felt paper with drip edge ensures that windblown rain that gets under the shingles will run over the underlayment not on the sheathing.