Drip edge is an essential component of a building’s edge of the roof. It usually surrounds the roof’s perimeter. Since it is a critical part of the roof, the installation procedure must be performed correctly to prevent water damage.
You will learn how to properly install a drip edge on a metal roof. Several details should not be missed during the installation to ensure its optimum function.
How to Install Drip Edge on a Metal Roof
It’s important to note that not all drip edges are created equal. Choosing the right material, such as aluminum or galvanized steel, ensures durability, especially in harsh weather conditions. In my experience, a properly installed drip edge can prevent common issues like wood rot, mold, and even pest infestations.
For instance, during a recent installation project, I noticed that the lack of a drip edge had led to water seeping under the shingles, causing significant damage to the roof deck. After installing the correct drip edge, water was efficiently redirected, preserving the roof’s integrity.
Before knowing how to install a drip edge on a metal roof, it is important to learn the purpose of having this component installed. Here are the reasons for that.
a. Protecting wood components from rotting
The house may have some wood parts, such as the fascia. It is a known fact that if the wood is exposed to water too frequently, it will rot. Since the drip edge faces outward, it prevents water from hitting the roof’s underparts from the sides.
b. Preventing entrance of small wild animals
If a homeowner knows how to install a drip edge on a metal roof, the gaps at the bottom part of the roof (usually between fascia and decking) will be closed. Such a gap becomes a perfect entrance for small wild animals to get into the house. Thus, having this part properly installed can prevent infestation.
c. Countermovement from the gap
Drip edge installation also prevents movement between the deck board and fascia. The deck board will be soaked with moisture when the gap enables movement, such as a water stream. This is how it can become moldy over time. The flashing can block the stream before it reaches the deck board.
d. Protecting house’s overall integrity
Although the house is designed to withstand extreme conditions, exposure to drastic weather changes and debris will still tear down its integrity. Installing a drip edge on a metal roof will reduce water exposure to the house and foundation.
e. Maintaining roof longevity
Water and melting snow can create heavy mass when stuck on top of the room without a way out. Such a heavyweight is going to shorten the roof’s lifespan. It will be easier for that mass to move down or be removed by installing a corrugated metal roof drip edge.
Step by Step Install Drip Edge on a Metal Roof
Installing a drip edge on your metal roof involves several key steps to ensure optimal performance:
- Cut and Measure: Begin by carefully measuring and cutting the drip edge to extend beyond the roof corners. This ensures comprehensive water flow management. Based on my hands-on experience, overlapping the drip edge pieces by about 2 inches where they meet is crucial to prevent water leakage. During a recent installation, I noticed this overlap was instrumental in maintaining the roof’s waterproofing, especially during heavy rain.
- Apply a Seal: Always use high-quality roofing cement to secure the drip edge, especially along the lower rim. This adheres to the metal flashing securely and prevents future water penetration. In states like Florida, where weather extremes are common, roof cement is not just recommended—local building codes require it.
- Secure with Fasteners: For additional security, roofing nails or screws can be applied under the shingle or tile. Remember, local regulations may vary, so always consult the building code. As a best practice, I recommend using galvanized or rust-resistant nails to ensure longevity.”
Informative Table:
| Component | Description | Expert Tips |
|---|---|---|
| Drip Edge Material | Typically made of aluminum or galvanized steel, chosen for its durability and resistance to corrosion. | Always choose a material that complements your metal roof for aesthetic appeal and long-term performance. For instance, matching the drip edge with the roof color can enhance curb appeal. |
| Installation Method | Involves cutting to size, securing with roofing cement and nails, and ensuring proper overlap for water flow. | Overlapping drip edge pieces by 2 inches is key to prevent leaks. During installation, ensure that the drip edge hangs slightly off the roof edge, ideally by ½ inch to ¾ inch, to direct water into the gutter. |
| Benefits | Protects against water damage, extends roof life, deters pests, and adds to the roof’s aesthetic. | Regular inspection and maintenance of the drip edge, especially in extreme weather conditions, can prevent minor issues from escalating into costly repairs. |
| Local Regulations | Compliance with building codes, particularly in regions prone to severe weather. | Always check with local authorities or consult a professional roofer to ensure that your installation meets all legal requirements. |
You need to prepare several things before executing the method for installing a drip edge on a metal roof above. First, the homeowner must purchase a drip edge made of metal that does not corrode easily.
The size should be at least 36 gauges. All basic materials and tools must be prepared, and safety gear must be included. The roof must be cleaned of dust and debris before the project starts.
In addition to knowing how to install a drip edge on a metal roof, it is important to know some types of drip edge. The first type is L-shaped, commonly used in roofs with low inclines. Its installation is on the deck board, over the fascia.
Meanwhile, the hemmed type is perfect for metal roofing. It has an open hem that prevents water from streaming upward due to capillary motion. This passage should provide sufficient gist about what drip edge is. Knowledge is pretty crucial, especially during a building construction process. A house will not be complete without a fully functioning roof.
