Understanding How Long Spray Foam Roofing Can Last

Over the years, spray foam has earned a great reputation for itself in the roofing world. And for good reason! It is energy efficient, reduces moisture growth, and creates an airtight barrier on the roof. But one of the questions people usually ask is – How long does it actually last?

Spray foam roofing is not a quick fix but one of the longest-lasting roofing solutions available in the market. When you ensure proper installation and routine maintenance, it can easily outperform many traditional roofing materials and last for decades. 

You also need to select the proper foam type, consider your local climate, and work with experienced roofers to ensure the roofing lasts for a long time. 

To know more about how long spray foam roofing lasts and the factors that affect its longevity, keep reading this blog!

How Long Does Spray Foam Roofing Last?

Most well-installed spray foam roofs start with a base lifespan of 20-25 years. But when you recoat it every 10 to 15 years and perform basic care, they can easily stay intact for 40 years or even more (in some cases).

Different types of roofs can last different amounts of time depending on what they are made of, how well you maintain them, and where they are located (climate and atmosphere). 

However, the big advantage is that spray foam roofing holds up better than many traditional options. That’s why it’s one of the smartest roofing choices for any property!

What Gives Spray Foam Roofing Such a Long Lifespan?

To know why spray foam roofing lasts a long time, you first need to understand what it’s made of!

Spray Polyurethane Foam (SPF) is made up of two liquids – polyol resin and isocyanate. When roofers apply spray foam on your roof, these liquids react and start to solidify. After the liquids harden, you’ll start seeing a protective layer form over your existing roof. And it’s this waterproof layer that keeps your roof free from cracks,leaks, UV damage, and more.

Here’s why spray foam roofing lasts for a long time –

• A Seamless System: There are no nails, screws, overlaps, or layers for water to penetrate. A seamless surface means fewer opportunities for damage.
• Strong Adhesion: Spray foam sticks to almost any roofing surface. This bond helps prevent wind uplift, cracking, or peeling.
• Energy Efficiency: Because SPF reduces heat transfer, your roof doesn’t expand and contract as much. That means fewer cracks over time.
• Lightweight but Strong: Spray foam adds very little weight compared to other roofing systems. This lowers stress on your building and reduces the chances of structural issues over time.
• Flexibility: SPF moves with your roof during temperature changes. Instead of cracking when it expands or contracts, it flexes. This helps it stay intact in hot summers and cold winters.

So, if you’re planning to protect your roof for decades, relying on experienced roofers for applying spray foam on your roof can be the best solution!

Keep Your Roof Strong With Spray Foam Roofing! Contact Us Now

Factors That Affect How Long Your Spray Foam Roof Will Last

Spray foam roofing is strong, but how long it lasts still depends on a few important things. Here’s what matters most!

• Quality of Installation

Even the best spray foam can fail if the roofers install it the wrong way. That’s why you should always work with trained and certified spray foam roofing contractors who always know what they’re doing! Here’s how they’ll efficiently apply spray foam on the roof –

• Prep the surface properly
• Apply uniform foam thickness
• Ensure smooth transition areas
• Apply coating with the right mil thickness
• Perform quality checks after installation

If your property needs spray foam roof leak repair, you need to call the roofers who can fix the roof properly and prevent more damage to your property.

• Type and Thickness of the Foam

Your roof’s lifespan is also affected by the spray foam’s density and thickness. Here’s what you need to know!

• Higher-density foam lasts longer
• Thicker foam improves insulation and durability
• Closed-cell SPF offers the best strength and water resistance

You don’t need to know all the technical details. But make sure your roofer uses high-quality, closed-cell spray foam that can last a long time.

• The Protective Coating

You can ask your roofer to apply a protective coating (of silicone or acrylic material) on top of the spray foam to protect the layer from the elements. This coating will determine how well your roof stands up to –

• UV rays
• Heat
• Rain
• Debris
• Temperature swings

When you apply a high-quality coating, it can increase the lifespan of your spray foam roofing even more!

• Your Local Climate

Redding has hot summers, strong UV exposure, and occasional heavy rains. Spray foam performs well in these conditions. But you may have to take care of some aspects!

Here’s how different climates affect SPF –

• Hot climates: Require stronger UV-resistant coatings.
• Rain-heavy areas: Need proper drainage and slope.
• Windy regions: Benefit from foam’s strong adhesion.
• Cold climates: SPF helps reduce heat loss.

When your installer understands your environment, they can take the right steps to ensure your roof lasts longer.

• Routine Maintenance

Spray foam roofs are low-maintenance. But you still need to do some maintenance regularly to extend its lifespan. Here’s what you can do – 

• Inspect once a year
• Clear debris
• Check drainage
• Repair small cracks early
• Recoat when needed

You can call your trusted roofers to take a look at your roof and repair it if needed.

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How Spray Foam’s Longevity Benefits You

When a roofing system lasts for decades, you can enjoy several perks, like –

• Fewer Roof Replacements: You avoid costly tear-offs for decades.
• Lower Repair Costs: A seamless surface means fewer costly fixes, as there are no weak spots that need frequent repairs.
• Better Mold Protection: The waterproof layer keeps moisture out and prevents mold.
• Long-Lasting Energy Savings: Its insulation property helps cut your energy bills.
• Weather Resistance: The spray foam roof stands strong against heat, UV, wind, & rain.
• Higher Property Value: A long-lasting roof makes your property more attractive to buyers.
• Better Indoor Comfort: Stable insulation keeps your property comfortable year-round.

Questions You Might Have About Spray Foam Roofing Longevity

➢ Can spray foam roofing be installed over an existing roof?

Yes, your roofers can apply spray foam directly over your existing roof. The only requirement is that the current roof will need to be structurally sound. If there’s mold, rot, or major water damage underneath, those issues must be fixed before applying spray foam.

This way, you don’t need to deal with costly tear-offs later on. Your roofer will inspect the surface to make sure it’s a good fit.

➢ Which lasts longer: open-cell or closed-cell spray foam roofing?

Closed-cell spray foam lasts much longer than open-cell foam. It’s denser, stronger, and far more resistant to moisture and weather damage. That’s why roofers almost always use closed-cell SPF for roofing projects. 

So, if longevity matters to you, you need to go for closed-cell spray foam roofing. It holds up better in extreme temperatures and heavy UV exposure. Plus, it provides stronger structural support for your roof.

➢ How do I know if I need to recoat spray foam roofing?

You may need a recoat if the top coating starts to look thin, worn, or faded. You might also notice signs like –

• Exposed foam
• Small cracks or blisters
• Discoloration from UV damage
• Rough or chalky surface texture

Plus, if you last applied spray foam 10 to 15 years ago, then you might need to reapply it to ensure the coating stays strong and continues to protect your roof.

Takeaway

Spray foam roofing is one of the longest-lasting and most reliable roofing solutions that you can choose. With proper installation of the right foam type, regular maintenance, and timely recoating, it can last for 40 years or more. It’s an excellent way to insulate your property, prevent leaks, and ensure your roof stays strong for decades.

Read More About:

• Does Mold Remediation Need to Happen Before Spray Foam is Installed?
• Why Early Roof Leak Detection is Critical for Foam Roofs
• Who is Responsible for Roof Repairs: Tenants or Landlords?
• Is Spray Foam Insulation Waterproof?

Give Your Roof Years of Strong, Reliable Protection With Spray Foam Roofing by Foam Experts Co.!

At Foam Experts Co., our roofers in Redding, CA, provide high-standard spray foam roofing for industrial and commercial properties. Before applying spray foam, we’ll inspect your roof properly and clean it! 

Once we’re done, our roofers in Redding will apply spray foam carefully and with professional care. If you need recoating, you can contact us immediately, and we’ll be there! We’ve over four decades of experience, so you won’t have to think twice before hiring us. 

All you need to do is call us at (530) 275-4588, and we’ll make sure your roof stays protected for years with spray foam roofing!