How To Roof Drip Edge

A drip edge is a non staining and non corroding material applied on a roof s edge to give water the ability to filter out of the roof system.

How to roof drip edge.

The lower edge of a roof should extend beyond the fascia board by about 3 4 inch so that runoff drains into the gutters. If this slight overhang is too short water will drip behind the gutters leading to rotted roof sheathing and fascia stained siding and even soil erosion and a flooded basement. Drip edge roof flashing types. Without a drip edge water may end up beneath the shingles and may cause damage to various parts of the home.

The roof leg should extend a minimum of 2 back onto the roof sheathing. Drip edges are metal sheets usually shaped like an l installed at the edge of the roof. Also called drip edge flashing or d metal they serve a vital function by directing water away from the fascia and into the gutter. While the vertical leg should be placed 1 4 1 2 away from the fascia.

T shape drip edge is an l shaped flashing in which the long leg folds back on itself before heading down 90 degrees to form the short leg. In other words it is the metal flashing located at the edge of a roof. The best way is to install the roof drip edge only along the eaves first then place ice and water barrier in the snowbelt or felt paper underlayment over the drip edge. To install a drip edge on a newly constructed roof or on a re roofing job attach the drip edge along the roof s eaves first.