The Importance of Drip Edges in Metal Roofs

Green Wood
4 min readApr 18, 2023

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Many questions arise about the importance of certain materials and elements used to construct a roof. This is particularly the case of the roof drip edge: Is a drip edge necessary on a metal roof? Will it really make a difference?

The answer is yes! Although they are little known, drip edges nevertheless play an important role in terms of protecting the roof. Like each of the elements making up your roof, the drip edge is essential to ensure the durability of your roof.

Here’s an explanation of the importance of drip edges in metal roofs!

What is a Drip Edge?

The drip edge is an L-shaped metal sheet installed on the roof’s edge, and its main function is to redirect rainwater to the gutter drips or away from the wall. It plays an essential role in preventing the runoff of water on your facades to your foundations if your house or building does not have gutters.

Roof drip edge is also commonly known as fascia flashing. Without it, you increase the risk that water from the roof will back up and cause damage. If your house doesn’t have a drip edge and your gutters are clogged with debris, this could also be causing infiltration due to overflow. These two elements are, therefore, essential for the proper circulation of rainwater on your metal roof.

Importance of Drip Edge in Metal Roofs

Whether or not your roof has gutters, metal roofing specialists in NC recommend installing a drip edge to eliminate the risk of water infiltration. Even if your gutters do their homework well, installing a drip edge is still important. For example, gutters are insufficient in windy and rainy weather.

A drip edge can protect against wind damage on your metal roof by creating an overlap between metal panels, preventing wind uplift.

Wind pushes water in multiple directions. This cannot, therefore, be properly redirected to the gutter, increasing the risk of water infiltration under the coating. If your metal roof is equipped with a drip edge, the water will be redirected when it reaches the edge of your roof, regardless of the direction in which the wind has pushed it.

The North Carolina State Building Code (1507.2.) requires drip edges to be installed on rake edges and eaves of shingle roofs. However, although the code does not require the installation of drip edges on metal roofing, they are nevertheless important in terms of the safety and protection of your roof against the harsh climatic conditions that North Carolina is subjected to. That’s why metal roofing companies in NC ensure the installation of drip edges in new constructions.

Installation of Drip Edge on Metal Roof

The metal roofing sheet making up the drip edge can also be made of different materials such as plastic, vinyl, or fiberglass. But the best roofers in North Carolina recommend using the metal drip edge for the roof because of its resistance and durability.

You can use plastic, vinyl, or fiberglass drip caps for doors and windows, but for roofs, metal ones are more durable. Also, metal roofing companies strongly suggest that you choose corrosion-resistant models.

Copper, Galvanized Steel, or Aluminum Drip Edge?

Each of these materials has advantages and disadvantages. Expert roofers generally recommend choosing a steel or copper roof drip edge, as these are stronger.

In contrast, aluminum does not tend to disintegrate like copper drip edge or galvanized steel. Your choice of materials also influences the thickness of your drip edge. To help you with your choice, do not hesitate to consult specialists at the best metal roofing company in NC.

C, F, D: the Three Drip Profiles for Roofing

The Classic Type of Drip Edge C

This is the basic model, in the shape of an L, which runs along your metal roof edge. It has a beveled edge at the bottom of its vertical wing.

The F-Type

It has a longer upper wing than the other two types, ideal for the side edges of the roof.

The D-Type

The latter is T-shaped, known for its ability to redirect water away from the roof’s edge. This drip edge has a beveled edge at the bottom of the vertical flange, like type C.

It is also good to note that there is a type J, but this one is unsuitable for roofs. It is generally installed on the edge of doors and windows.

Want to Replace Your Old Roof with a New One? Reach the Best Roofers in NC!

If you want to install a metal roof on your new house or replace your existing roof with a new one and are looking for the best roofers in North Carolina, contact Gator Metal Roofing.

The Gator Metal Roofing team has the best metal roof experts who have been providing premium metal roofing services throughout NC for over 25 years. Entrust your roof to the experts for the peace of mind you deserve.

Call (888) 202–2711 or visit the website to know more about roof drip edges and get a FREE quote!

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