Because the drip edge directs the water directly down and into the gutters, the back of the fascia is protected from excessive moisture. In worse cases, a leak will develop in the ceiling or along the walls.Īlthough it is not the intention, drip edge flashing will also provide protection for the fascia board. Without the installation of a drip edge, water can wick into the edges of the roof sheathing and cause the roof to develop rot and/or mold. When placed on the rakes’ side, it protects the sheathing from wind driven (or forced) rain blowing back into the sheathing. When placed on the eaves side of a roof, the drip edge will prevent capillary action water damage caused by surface tension. It is designed to protect the roof’s sheathing from water damage caused by rain, snow, or ice being blown or rolling back beneath the edge of the shingles. What Is Drip Edge Flashing?ĭrip edging is a strip of flashing that is applied to the edge of roofing prior to the installation of other items. If your roof is already finished (sans drip edge), you can still do a drip edge retrofit installation. So, if you are re-roofing your house, be sure to demand a drip edge. The elimination of this installation can end up being your future nightmare. Unfortunately, many contractors tend to neglect this step. Of all of them, the first line of defense is to install drip edge flashing. There are several layers within a proper roofing job that are necessary to provide the most protection against water damage.
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