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Roof Common Issues: Flashing Corrosion

Common Roofing Issues: Flashing Corrosion

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Quality is at the heart of our Austin roofing company in every project we take on. Contact our experienced Central Texas roofers for a same-day, pressure-free inspection. Call 512-375-3654 to book your free inspection.

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What to Do If Your Metal Flashing is Corroding

Even if you don’t have a metal roofing system, there’s a good chance you have metal on your roof. The flashing that is used around roof penetrations, in valleys and where the roofing meets a wall is made of metal.

The flashing is a critical component of the roofing system that helps to prevent leaks in spots where they are most likely. For that reason, it’s imperative that the metal surface of the flashing is in good condition.

Has your metal flashing started corroding?

The Roofing Experts at LOA Know How to Handle and Prevent Corrosion – Contact LOA For a FREE Roof Inspection

Understanding the Corrosion Process to Prevent Problems

Exposed metal surfaces that are out in the elements are at risk of corrosion. We’ve all seen it, but what exactly is it and why does it happen? This explanation will help you better understand the issue and why it can be a serious problem for roof flashing.

    • How Different Metals Corrode

      A material’s corrosion resistance depends on its chemical makeup. Corrosion is the result of electrochemical reactions that cause metals to degrade and revert to a mineral form. Some metals are better protected than others from this process.

      For example, stainless steels are very corrosion resistant because they contain chromium. The chromium provides a protective layer that helps prevent corrosion. That’s why stainless steels are commonly used for metal roof materials.

      Copper corrosion is very different from other metals. It’s highly resistant to corrosion degradation, and instead of a brown rust forming, copper develops a green patina that is actually protective.

      However, most flashing is made out of aluminum. Aluminum is resistant to corrosion because it has an oxide layer formation that makes it less susceptible to oxygen that can cause metals to corrode.

 

    • What’s Considered a Corrosive Environment

      The environment also plays a role in corrosion, particularly in how quickly different metals corrode. A corrosive environment is one where there’s moisture, warm temperature and the presence of corrosive substances like salt and certain acids.

 

  • Types of Corrosion

    There are different types of corrosion that can occur depending on the materials, environment and situation.

    With flashing crevice corrosion can occur. This is when water is trapped within a crevice and the loss of oxygen in the space reduces the protective oxide layer of metal.

    There’s also galvanic corrosion, that’s also called bimetallic corrosion because it occurs when two different metals are touching and there’s water present. The presence of another metal will actually speed up the corrosive process.

    Pitting corrosion is much more localized. This is when small but deep pits can form and weaken the material structurally.

Problems Caused by Corroded Flashing

Corrosion is going to weaken metal flashing, which can lead to a lot of problems. There’s an increased chance of:

  • Leaks
  • Mold growth
  • Staining
  • Stress corrosion cracking

When the flashing is corroded it can end up impacting other roofing materials and even cause structural damage. Simply put, when metal flashing is corroded it can’t do it’s job properly.

 

Steps to Take If There’s Metal Corrosion on Your Flashing

Seeing signs of corrosion on the flashing is a clear sign that repairs are needed. It’s a roofing issue that can have a domino effect leading to much bigger problems. Here are the steps to take when your flashing is corroded.

    • Get an Inspection

      A professional roofer can take a look at the flashing to gauge the extent of the problem and whether it’s localized or widespread.

 

    • Make Repairs or Replace the Flashing

      The roofer’s inspection will tell you if the flashing can be salvaged. For limited corrosion you can repair the flashing by cleaning, patching and sealing it. If the corrosion is extensive you’ll need to go ahead and replace the flashing.

 

  • Select the Right Flashing Material

    There’s a good chance you’ll need to replace the corroded flashing, which gives you the opportunity to select a material where that’s less likely in the future. Copper is often considered the best option, but it can be expensive. Aluminum is a good alternative, but just make sure the flashing has a protective coating to reduce the chance of corrosion.

Replacing and repairing flashing is among the many roofing services that LOA offers. If corroded flashing is a problem call our team at 512-375-3654 to schedule an inspection.

We're One of the Highest Rated Roofers in Austin for a Reason

Thanks to Landon Wells of LOA Construction for the beautiful new roof! It was all completed in one day including a meticulous clean up job afterwards. The workers were all polite and professional. Landon made sure everything went smoothly and that all of our questions were answered. I am thrilled with our new roof. I would definitely recommend Landon and LOA Construction to all of my friends and family. Thank you Landon!

— Renee Johnson

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— Brian McFarlin, 5-Star Google Review

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"Brandon at LOA construction made replacement of our roof very easy. He was the only roofing contractor that I could find that would work directly with our insurance company. They showed up on time and made the whole process very easy. And we have a great looking high quality roof! I Would definitely recommend them to anyone looking for a new roof. Give them a call if you need a roof or think you might have wind or hail damage. I had several other bids that were higher cost and didn't think our insurance would cover it. Our insurance did cover it, I think they were just unwilling to work with the insurance company. Not Brandon, not only was he will to work with our insurance he met with the adjuster and made the whole thing a breeze. Thanks again LOA and Brandon!!!!"

— Mike A., 5-Star Google Review

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LOA Construction has exceeded my expectations again. This is the second roof installation with them and I couldn't be happier. Specifically, Tyler Griffiths is professional, attentive, and made the entire process of working with my insurance company effortless. My tenant sent a glowing account of their experience as well. Knowing it was a rental, they still diligently protected all property and plants. They were on time every time and went out of their way to not inconvenience the residents. LOA Construction has integrity and takes pride in their work. I couldn't recommend them more.

— Sheri Moran

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"Worked with Zac and his team. Zac did an outstanding job working with the insurance company to ensure all damage was covered. Roof and gutters installed each were on time and all work was top of the line. This is a company that really does put the customer first. With out question I would recommend loa construction and roofing."

— Tony Smith, 5-Star Google Review

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From the very start, I knew I was in good hands. The professionalism was top-notch, but most important, was the caring attitude of the project manager, Dan Harvey, the roofing supervisor, Ambrocio, and the roofing crew. They made sure every detail was covered. They are definitely an asset to LOA Construction. I highly recommend them. Dennis and Suzy S

— Dennis Sanger

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Andrew was very great at getting myself and my wife all the information and getting us started from start to completion. His workers were friendly and professional. If ever I had to contact him, he was quick to respond back. We are very happy with the finished product. Yes, I would and have recommended him and his company to get their work by LOA Construction and Austin. Andrew made sure my wife would be satisfied with whatever roof she liked. Can't thank you enough Andrew and LOA Construction.

— Paul Coleman

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As a first time home owner with no experience in how to make claims and start the process of getting a new roof I was scared to the point of avoiding what needed to get done after the bad hail storm. August Walker did an amazing job walking me through each step along the way. He answered all my questions and calmed my concerns. They inspected my roof and drove from Austin to Belton just to be there with the ins inspector, and followed up with me in person after the roof was installed. He also made a special trip back to drop off samples! I’m grateful to August and LOA construction for being highly professional and friendly!

— Angela Baker

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From start to finish Lee and his team took great care of us. He made us feel comfortable during the process and answered any and all questions we had. I would definitely them recommend to anyone.

— Taneisha Jones

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Arthur Harris and his team with LOA Construction did an excellent job on our roof. They finished it in one day. Arthur was very good in explaining all the information to us.

— Crystal Hill

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Will, has been so awesome and easy to work with he gets everything we want done the way we want it and also keeps us updated as we are over the road truck drivers !!! Hands down to LOA Construction for their great service and great customer service !!!

— Tanya Dudkiewicz

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Dan Harvey is Very Knowledgeable and directed me straight to the products that will save us money in the next 3 years the savings on energy costs alone will pay for the installation itself. I highly recommend LOA Construction and Dan Harvey! Actual Customer Jefferson Fara

— Jefferson Fara

★★★★★
Mark from LOA roofing was very professional from the git, the initial estimate process, he quickly identified all the issues that needed to be addressed. The company was very prompt, to coordinate the crew, and for a very reasonable price, got my roof repaired without any hassle. They also took care of all the cleaning, so that it all looked like nothing happened. I would recommend Mark from LOA to anyone needing a roof repair, with no kind of hesitation.

— Ale León

★★★★★
Loa Construction provides quality services in installing roof and related repairs. I’ll recommend it to my friends and family.

— Peijie Li

★★★★★

Choose quality roofing for a lasting investmen in your home.

Request an Inspection

Dedicated to excellence, our Austin roofing company ensures quality in every project. Contact our skilled Central Texas roofers for a same-day, hassle-free inspection. Call +1 (512) 375-3654 to book your free inspection.

Choose quality roofing for a lasting investment in your home.

Request an Inspection

Dedicated to excellence, our Austin roofing company ensures quality in every project. Contact our skilled Central Texas roofers for a same-day, hassle-free inspection. Call +1 (512) 375-3654 to book your free inspection.

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