To shed water away from the eave most roofers add a metal drip edge right to the roof deck covering it with the membrane.
Roof drip edge pros and cons.
However wear occurring along the roof s drip edge where all the water and snow run off will eventually wear away the aluminum coating once the paint finish fails and rust will ensue.
Galvalume has a coating of aluminum over the steel and will likely take more time for rust to occur at the exposed locations of the panel.
So the i w is ran over the drip edge on the rakes and under the drip edge on the gable ends.
Drip edges are metal sheets usually shaped like an l installed at the edge of the roof.
It should reach 3 feet beyond the inside of the wall and cover any valleys to prevent ice dams and wind driven rain from reaching the sheathing.
Given the relatively minor cons of getting it put in.
29 gauge galvalume ef3 eave flashing in gray.
Drip edge flashing.
While it is possible to install a drip edge after the roof is complete it is far easier to just get one when you re getting your roof built.
By oatey 17 13.
Without a drip edge water may end up beneath the shingles and may cause damage to various parts of the home.
If water penetrates the roof at any point and runs down the underlayment at the rake it will run right behind the drip edge fascia.
Free delivery with 45 order.
I always use i w at the rake and the drip edge is always installed before the i w is put down.
Also called drip edge flashing or d metal they serve a vital function by directing water away from the fascia and into the gutter.
Galvanized steel drip edge flashing.