Flashing for roofs is usually made from rust-resistant metal like copper, aluminum, or galvanized steel. Flashing is used where chimneys and walls meet the roof or where two parts of the roof meet to channel water toward gutters. Copper flashing can cost more, but it’s more durable than aluminum.
Are you trying to decide what type of flashing pairs well with your shingles? Keep reading to see why copper flashing may be the perfect fit for your roof in Maryland!
In this article, we will discuss what makes copper a good choice for your roof, and how it compares to other flashing materials.
Is Copper Roof Flashing a Good Material?
Copper roof flashing is an excellent material for the wet climate of the greater Baltimore area. Copper is very resistant to rust and pairs well with algae-resistant shingles with copper granules. Copper flashing is known for its ability to last better than its cheaper counterpart, aluminum.
Copper is also corrosion-resistant. When paired with the right materials for nails, gutters, and siding, you’ll have corrosion-resistant protection for your home.
Why Does Roof Flashing Matter?
The flashing on your roof keeps the edges and valleys of your roof watertight and prevents water from leaking where the roof meets the walls or chimney of the home. Flashing is also used where the roofing meets to channel water off of the roof quickly.
If your flashing is old or damaged, you may get leaks. The first place to check for leaks is the attic. Seeing leaks or daylight through cracks indicates that your flashing needs to be repaired or replaced. Other signs may include water stains on the ceiling or an old roof.
Copper Versus Aluminum Flashing
Roof flashing can be made from galvanized steel, aluminum, copper, or zinc. One of the most common materials is aluminum because of its low price point and ease of installation. However, aluminum has a few drawbacks when compared to copper.
Aluminum is less durable than copper flashing. Its lifespan is usually limited to about 20 years, so it needs to be replaced more often than copper. When installed and maintained properly though, aluminum flashing performs its job.
If you will be in your home for a long time, the longevity of copper flashing may be worth its higher price point. It also ages beautifully, develops a patina, and gives a roof character. It pairs well with durable architectural shingles.
Copper Versus Galvanized Steel
Galvanized steel is another roof flashing material known for durability. It’s the heaviest material used for flashing and can be some of the most difficult to install because it’s less malleable. Because of these properties, galvanized steel may have a higher installation price than other materials.
Still, due to its heavier weight, galvanized steel is a solid choice for a flashing material upgrade. Like copper, it will outlive the cheaper aluminum option. It will also outlast impacts during storms when compared to softer materials.
Working with a trusted, local roofing contractor will help you decide the best material for your roofing needs. All flashing materials can perform their job when installed and maintained by a quality roofing contractor.
Your trusted contractor can compare the material price, durability, and installation costs for each material.
What Are the Disadvantages of Copper Flashing?
Copper flashing costs more than aluminum flashing. When copper is paired with other metals, like aluminum, it can result in a chemical reaction. This reaction is called galvanic corrosion. Materials for roofing like screws, flashing, and gutters must be selected to avoid this type of corrosion.
This disadvantage is not unique to copper flashing. If aluminum flashing is paired with the wrong types of nails, corrosion can still occur.
Working with a roofing contractor to pick the best material for your roof is the best decision for any homeowner. Working with an experienced contractor prevents mixing different types of metals which lead to corrosion. An experienced contractor will make sure the materials of your roof work in harmony.
Copper Flashing Installation Providers
At Tar Heel Construction Group, LLC, we proudly offer top-quality Copper Roof Flashing services to residents in the Harford, Cecil, and Baltimore county areas.
Our skilled professionals have years of experience in the roofing industry and are dedicated to providing exceptional customer service and workmanship.
Contact us today to learn how we can help you protect your home with Copper Roof Flashing.
Copper flashing is an excellent material for Maryland’s wet weather and climate. When installed correctly, copper is highly resistant to corrosion from water and air pollution. It also lasts longer than the cheaper alternatives.
Copper flashing is also a great design choice since its patina gives the roof of your home a nice touch. Pair it with architectural shingles for an appealing roof.
Working with a certified roofing contractor ensures that the installation of roofing materials is done properly and covered by a warranty.
Frequently Asked Questions
Will copper turn green over time?
Copper oxidizes over time and the outside layer of copper turns green. This green-hued patina is a sought-after design feature in architecture. When paired with the right shingles, oxidized copper flashing can give a home a stunning look.
Does copper flashing cost more than aluminum?
Copper flashing tends to cost more than aluminum, but it also lasts longer than aluminum roof flashing. Pairing copper roof flashing with long-lasting roof shingles can extend the life of your roof.
Can copper flashing be painted?
Copper flashing can be painted as long as any layers of oxides are removed first. This is because an oxide layer can cause the paint to peel prematurely.