To make the inside corner turns, you will need to create an overlap that meets at the interior of the corner.
#INSTALL BLOWN UP ON EXPOSURE X HOW CODE#
In 2012 the Internation Code Council changed things to reflect the requirement of drip edging on all asphalt roofs. It is now more frequently understood that a roof needs this extra protection. This has been a common practice that is becoming less and less popular. Often the common practice is to leave out the drip edge and compensate by installing asphalt roof shingles so that they hang over the edge by an inch or two. If your house is like many, you may find that you do not have drip edge flashing installed. If you have ever had a family of squirrels living in your attic, you can appreciate this extra bonus. This helps to extend the life of the wood.Īnother benefit that wasn’t intended but has been a useful outcome from installing a drip edge is that it prevents rodents, squirrels, and birds from being able to access the attic space via the builder’s gap. 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.
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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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