You may have heard, during discussions about the roof on your South Jersey home, about drip edges. Now you are wondering, what is a drip edge? What is its purpose? Drip edges may not sound like an essential piece of the roofing system, but they are indeed. As part of the roof flashing system, the drip edge plays a role in protecting some of the most vulnerable sections of the roof from water damage. Let’s discuss the roof drip edge, including why it is important to include on your South Jersey home.
Key Takeaways
- A drip edge is a piece of the roof’s flashing system.
- Flashing is designed to keep water from penetrating the underlayment of the roof and redirects it towards the gutter system.
- Drip edges are made of metal and go around the edges of the roof.
- Benefits of having drip edges include protection from damages, including pests, mold, ice, and water.
- Drip edges typically cost around $1-$3 per linear foot.
What is a Roof Drip Edge?
A roof drip edge is a type of roofing component designed to provide protection and proper water drainage at the edges of a roof. It is typically made of metal, such as aluminum or galvanized steel, and is installed along the eaves and gables of a roof. Due to the shapes and styles of roofs common in New Jersey, you may see different types, including the common L, C, and T drip edges.
Types of Drip Edges
Each type of drip edge is aptly named for its shape. Here is an overview of the common roof drip edge shapes:
L-Shaped Drip Edge
The L-shaped drip edge is the most commonly used type of drip edge in roofing applications. In use, one leg of the “L” extends horizontally over the edge of the roof, while the other leg extends vertically against the fascia board. The horizontal leg serves to direct water away from the fascia and into the gutter, preventing water damage to the underlying structures.
C-Shaped Drip Edge
The C-shaped drip edge is similar to the L-shaped drip edge but has a slightly different profile. The design of the C-shaped drip edge allows it to be installed directly onto the roof decking, providing additional protection against water intrusion at the roof edge. This type of drip edge is commonly used in flat or low-slope roofing systems where water runoff management is critical.
T-Shaped Drip Edge
The T-shaped drip edge is characterized by its profile, which resembles the letter “T” when viewed from the side. The vertical flange of the T extends down the roof’s edge. It works by directing water away from the roof with the horizontal edge while the vertical flange adds protection and support. T-shaped drip edges are often used with metal roofing systems and provide enhanced water runoff capabilities compared to other drip edge profiles.
Drip Edge Building Codes
Building codes play a crucial role in ensuring that your home and roof meet the regulatory standards set by your state for passing a home inspection. As per section R905.2.8.5 of the 2018 International Residential Code (IRC), it is mandated that a drip edge must be incorporated at the eaves and gables of shingle roofs. This regulation necessitates the proper installation of drip edges along the edges of your roof to comply with the code.
Furthermore, adherence to the code extends beyond mere installation; it requires correct installation practices. According to the same code, adjacent pieces of drip edge should overlap by a minimum of 2 inches. Additionally, the drip edge should extend at least ¼ of an inch below the roof decking and upwards by a minimum of 2 inches. Proper underlayment procedures are also specified, mandating that underlayment be installed over the drip edge at the eaves and beneath the underlayment at the gables.
It is important to note that some less reputable roofing contractors may attempt to cut corners by omitting drip edge installation or by not installing it according to the specified guidelines. Always hire roofing contractors in South Jersey who you know you can trust, such as RGB Construction.
Why are Roof Drip Edges Important?
Not only roof drip edges required by building codes to be installed, they are also extremely important. Here are several reasons why drip edges are important:
- Water Management: Drip edges help to manage water runoff by directing it away from the roof edge and into the gutters or off the roof surface. This prevents water from pooling or infiltrating underneath the roofing materials, which can lead to water damage, rot, and mold growth.
- Protection of Roof Edge: Drip edges provide a protective barrier at the roof edge, shielding vulnerable areas such as the fascia board and underlying structures from water damage. They prevent water from seeping into gaps or joints along the roof edge, which can cause deterioration over time.
- Prevention of Ice Dams: In cold climates, drip edges help to prevent the formation of ice dams along the roof edge by providing a barrier that discourages the buildup of ice and snow. This helps to mitigate the risk of water backup and leakage into the attic space.
- Wind Resistance: Drip edges help to secure the roofing materials in place, especially during high winds or storms. They provide a stable edge for the roofing materials to be attached to, reducing the risk of wind uplift and damage to the roof system.
- Aesthetics: Drip edges also contribute to the overall appearance of the roof by providing a clean, finished edge. They enhance the visual appeal of the roofline and contribute to the curb appeal of the property.
Contact a Roofing Contractor in South Jersey Today
Whether you need drip edges installed, repaired, or replaced, they are definitely a piece of the roof that you should not underestimate. Roof drip edges are essential components of the flashing system, ensuring that your roof isn’t exposed to the elements. Furthermore, they enhance structural integrity and ensure building code compliance.
When it comes to roofing and drip edges, you want a roofing contractor in South Jersey you can trust. Count on RGB Construction. With over two decades of experience serving counties in South Jersey, we have gained the recognition and trust of many satisfied customers. Get in touch with us today by calling 856-264-9093 or by filling out the online form. Let’s get started on your roofing project!
