What Florida Homeowners Should Know About Salt Air & Roof Corrosion

What Florida Homeowners Should Know About Salt Air & Roof Corrosion

Because we serve East Central Florida, many of the homes we provide roofs for are near the Atlantic Ocean.  These beachside communities, as they are called, have unique roofing needs and challenges.  The salt content in the air near the ocean is higher than in inland areas.  

Florida has a unique ecosystem and is considered subtropical and tropical.  A study showed that Florida receives the highest level of salt penetration in our air, with salt intrusion up to 100 miles inland!  So, even if you don’t live near the coast, this article still applies to you, as you may live in an area that has a higher salt content in the air than most inland areas.  

This article will look at the unique concerns homeowners face with salt air.  We will discuss why salt air is a problem, how it affects different types of roofing materials, the signs of salt-related roof corrosion, and prevention and maintenance tips.  We will also let you know if it’s time to call the professionals at Seal Tight Roofing Experts, because sometimes you need an expert!

What Is Salt Air and Why Is It a Problem?

Without turning this into a science lesson, we will give a very brief description of salt air.  Salt air is air that contains small salt particles that have been tossed into the air from waves.  As the water droplets in the air evaporate, the salt particles remain.  Wind can carry this salt air inland, particularly in Florida.  

Salt is a corrosive substance, particularly when combined with moisture.  As you know, Florida has an abundance of both salt and moisture, so our area is a bit of a “perfect storm” for salt corrosion.  Salt is essentially a catalyst for corrosive processes, like rust and oxidation.

How Salt Air Affects Different Roofing Materials

Because there are a variety of roofing materials available, we will address how salt air affects the different types, so everyone knows how their specific roof might be affected.  

Metal Roofs – Metal roofs are a popular choice in Florida.  There are different types of metals to choose from, and salt air has a unique impact on different metals.  This is important to consider when choosing a metal roof.  Steel is durable and easy on your budget, but it rusts.  Aluminum is rust-resistant which makes it an excellent choice in Florida.  Copper will change color over time, but it is not a form of corrosion, and it will not rust, also making it a good choice.  For more information, check out our article, “Why You Should Choose a Metal Roof in Melbourne FL.”
Asphalt Shingles – Rust isn’t really the issue with asphalt shingles.  However, salt air will still take a toll on them, causing granule loss and adhesive deterioration.  Basically, asphalt shingles are a good choice, but they may not last as long as they would on a house far from the coast.
Tile Roofs (Clay or Concrete) – Tile roofs are a great choice in Florida because of the temperature regulation they offer.  They are also not endangered by rust.  However, salt air can cause corrosion on the underlayment or fasteners.
Flat Roofs – While most common in commercial buildings, there are homes with flat roofs.  The metal flashings may experience rust, depending on the type of metal.  

At this point, you may feel like no roof is safe from salt air.  In a sense, you are right.  Salt air is very corrosive, but there are roof types that are less affected by it and some that are rust-resistant, like aluminum.

Signs of Salt-Related Roof Corrosion

Let’s talk about what you need to look for to know if your roof is being negatively affected by salt air.  If you see any rust on flashing, gutters, or fasteners, it is possibly salt-related corrosion.  Rust is never good, and any rusty parts should be replaced as soon as possible, as they will continue to deteriorate.  If you see discoloration or streaking on roof materials, deteriorating sealants or coatings, or increased leaks or moisture intrusion, then salt air may have been wreaking havoc on your roof!  If you see any of these signs, it may be time for some repairs.  If the damage is too extensive, it may be time for a new roof.

Prevention and Maintenance Tips

Salt-resistant sealants
Choosing roofing materials, like aluminum, that are rust-resistant and great for coastal homes
Cleaning and rinsing your roof with fresh water regularly to prevent salt buildup
Gutter maintenance to prevent salty debris from causing corrosion

When to Call the Experts

Seal Tight Roofing Experts has been installing, repairing, and inspecting roofs for over 25 years.  Call us if you see signs of corrosion, like widespread rust or leaks.  We can provide needed repairs, replace the roof if necessary, and possibly apply a protective coating.  We are experienced with Florida’s coastal climates as we service the greater East Central Florida area.  

Conclusion

It is important to be proactive against salt air corrosion.  In this way, you may prevent extensive damage from occurring.  Some roof types are more prone to salt air corrosion, such as metal roofs that can rust.  Remember that rust isn’t the only form of damage caused by salt air though.  It can also wear away granules and deteriorate adhesive.  By calling us for an annual inspection and performing simple routine maintenance, we can help extend the life of your roof.  If your roof needs our help or you are ready for an inspection, then give us a call today!

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