Drip edges are a relatively small roofing component that it’s easy for them to get overlooked, yet they are a key component that can help prevent significant damage to your roof. In today’s post, local roofing contractor Masters Roofing shines the spotlight on this important roofing component.
How Do Drip Edges Work?
The drip edge is a type of flashing that’s installed at the roof edges, tucked under the first row of shingles. Flashing is installed on roofs to protect vulnerable areas such as valleys, penetrations (including chimneys and vent pipes) and where the roof meets a wall. Functionally, drip edges are no different, as they protect the roof edges from moisture infiltration.
Without drip edges, rainwater runoff can make its way under the roof edge through capillary action and eventually seep into the roof deck and framing. Drip edges are shaped in such a way that it serves as a barrier that lets errant rainwater drip towards the gutters instead of through the roof edge. It’s proven to be so effective that major roofing manufacturers now have it as part of their standard roofing installation procedures.
Drip Edge Profiles
Like most other types of flashing, drip edges are fabricated from sheet metal, usually made of copper or stainless steel. The following are some of the most common profiles:
- L-shaped drip edge. The most commonly-used type of drip edge has an inverted L shape, with the horizontal side inserted between the decking and the first row of shingles. Under most conditions, it provides sufficient protection against moisture infiltration.
- Gutter apron. Gutter aprons typically have an upright T-shaped profile. The extended shelf or apron extends the roof edge and helps reduce the amount of runoff that makes its way under. This style is ideal for homes located in areas that experience several inches of rainfall a year.
- Hemmed drip edge. The hemmed drip edge is typically used with metal roofing systems. Like gutter aprons, it has a T-shaped profile, though asymmetrical. The short side is more like a protruding triangle that helps channel water towards the gutters.
It’s important to note that not all roofers install drip edges, though complete roofing systems from reputable brands have it. If you are planning a roof replacement, make sure to ask your roofer about it. To learn more about our roofing services, give Masters Roofing a call at (901) 871-7663. You can also fill out our contact form to schedule a free estimate. We serve communities in Memphis, TN.