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Key Takeaways
- Silicone, acrylic, rubber (SEBS), and polyurethane are the top coatings for metal roofs.
- Silicone is best for rainy areas, acrylic excels in hot climates, rubber (SEBS) flexes with temperature shifts, and polyurethane is the toughest for industrial use.
- Proper application—cleaning, repairing, priming (if needed), and making sure even coverage—maximizes coating performance.
- At Apex Restoration & Roofing, we help you choose and apply the best metal roof coatings for maximum protection and peace of mind.
The Best Coating for a Metal Roof
Your metal roof works hard, and the right coating can make all the difference. So what’s the top pick? It depends on your roof’s climate, durability needs, and budget.
Here’s the breakdown:
- Silicone: This coating is waterproof, UV-resistant, and ideal for humid areas.
- Acrylic: The one reflects heat, keeping your roof cool (and your energy bills low).
- Rubber (SEBS): Expands + contracts—perfect for roofs that face big temperature swings.
- Polyurethane: Built tough for high-traffic areas and industrial buildings.
The right coating stops leaks, slashes energy costs, and makes your roof last longer—and we’re here to help you find the perfect match. Let’s go!
| Apex Restoration & Roofing: Your Roofing Specialists in Colorado Located in Englewood, Colorado, Apex Restoration & Roofing offers expert residential and commercial roofing services. With over 27 years of experience, we specialize in roof replacements, repairs, and storm damage restoration, using only the highest quality materials. Our A+ BBB rating and a 5-star rating on Google from satisfied customers ensure your project meets the highest standards of quality and satisfaction. See the Apex difference today! |
Understanding Metal Roof Coatings: Why They Matter
Why Metal Roofs Need Coatings
- Rust & Corrosion: Moisture sneaks in, and now, you’ve got rust creeping across your roof.
- Cracks & Leaks: Metal expands + contracts with temperature swings—leading to splits + weak spots.
- UV Damage: The sun’s rays can fade your roof + break down its surface.
- Heat Buildup: Metal soaks up heat, making cooling costs skyrocket.
How Roof Coatings Help
- Reflects sunlight → Keeps your roof cool + lowers energy bills.
- Seals up minor cracks → Stops leaks before they start.
- Blocks moisture → Fights off rust + corrosion.
- Extends your roof’s life → Delays expensive replacements.
💡 If your roof is already showing signs of wear, rust, or leaks, knowing whether it needs a coating or a full repair is key.
Comparing the Best Coatings for Metal Roofs
| Coating Type | Best For | Why You’ll Love It |
| Silicone | Rainy, humid areas | Waterproof, UV-resistant |
| Acrylic | Hot, sunny climates | Reflects heat, saves on cooling costs |
| Rubber (SEBS) | Extreme temp shifts | Expands + contracts without cracking |
| Polyurethane | Industrial/high-traffic use | Super tough + impact-resistant |
💡 Thinking about cost? Metal roof coatings typically range between $1.50 and $3 per sq ft for materials and installation. However, if your metal roof has a slope, be prepared to spend $1 to $2 more per sq ft for sealing.
Factors That Influence the Best Coating Choice
Climate Considerations
- ☀️ Hot & Sunny? Acrylic is your MVP. It reflects heat, keeping things cooler and cutting down on AC costs.
- 🌧️ Rainy & Humid? Silicone is your shield. It’s waterproof, so no more stressing about leaks.
- ❄️ Cold & Freezing? Rubber (SEBS) is your best bet. It flexes with the weather—no cracking, no problem.
- 🏭 Heavy foot traffic or industrial use? Go with polyurethane. It’s built tough and takes a beating without breaking down.
Roof Condition & Material
- Dealing with rust or an aging roof? Rubber or polyurethane gives you extra protection against wear and tear.
- Got a well-maintained metal roof? Acrylic or silicone helps extend its life.
Budget vs. Long-Term Savings
- Silicone costs more upfront than acrylic, but since it’s waterproof and durable, you’ll avoid expensive repairs down the line. That’s money saved in the long run.
- The right coating isn’t just about cost—it’s about protecting your roof, saving energy, and avoiding costly repairs later.
Application & Maintenance: Maximizing Roof Coating Lifespan
- Start with a clean slate. Get rid of dirt, rust, and debris. Your coating won’t stick to a messy surface.
- Fix what’s broken. Patch up leaks, cracks, rust spots before you seal the deal.
- Prime (if needed). Some coatings need a little extra grip. A primer helps them stick better and last longer.
- Apply like a pro. No matter if you brush, roll, or spray, keep it smooth and even for full coverage.
- Let it set. Don’t rush the curing process. Follow the manufacturer’s instructions for best results.
Regular Maintenance Tips
- Check in every 6-12 months. Look for cracks, peeling, or wear before they turn into bigger problems.
- Keep your roof clean. Dirt buildup messes with reflectivity + waterproofing. A simple rinse can go a long way.
- Know when to recoat. Most coatings last 10-20 years, but regular inspections help you stay ahead of the game.
Mistakes to Avoid When Choosing or Applying a Roof Coating
Skipping Surface Prep
If you’re painting a wall, you wouldn’t paint over dirt, right? Same goes for your roof. Clean off the grime, rust, and old coatings first—or your new coating won’t stick. Result? Peeling, leaks, and a total waste of money.
Picking the Wrong Coating for Your Climate
Different coatings handle different weather conditions. If you match the wrong one to your region, you’ll be recoating sooner than you’d like.
Applying It Too Thin
A thin coat won’t cut it. If you skimp on application, your roof stays vulnerable. Always follow the manufacturer’s coverage guidelines for the best results.
Forgetting to Check In
Regular inspections (every 6-12 months) catch small cracks before they turn into major leaks. Skip maintenance, and you’ll be back to square one before you know it.
Make Your Metal Roof Last with the Right Coating
Your metal roof works hard—so give it the protection it deserves. Whether it’s waterproofing, heat reflection, or extra durability, the right coating makes all the difference.
A high-quality coating doesn’t just fix problems—it prevents them. That means fewer repairs, lower energy bills, and a roof that lasts years longer. Investing in the right coating now saves you time, stress, and money down the road.
Protect Your Roof with Apex Restoration & Roofing
Got rust, leaks, or wear showing up on your metal roof? No worries—we’ve got you covered.
“I’ve used Apex twice now and both times have been a great experience!! I had them lay a metal roof over my shingles.
First off, I live two hours away from Apex up near Winter Park over the pass. I was very excited they were willing to work with me being so far away. Secondly my roof is tall, and wicked steep. We often experience severe winds up here, & boy those winds don’t let up quick once they start gusting. Sometimes the Apex crew would only be able to work a short day due to often unpredictable weather rolling in over the mts. They were so kind and understanding about it, even though it’s such a drive for them! They would come back right away (as soon as it was safe to be up on it again)! There are a lot of shady contractors up here that would probably stretch this project out, but not Apex. They have an amazing follow-through and are very efficient!
The second time using them, I was finishing my last section of roof and I emailed them way too close to our early winter start up here.
To my surprise, they were able to squeeze me in and get my roof done within like only two weeks time of my email! Bless their hearts they even came up on a 10 degree morning after snow! I was thrilled, especially knowing their efforts are spread out helping hurricane Ian homes too!
My mocha colored metal roof looks wonderful and I’d recommend Apex to anyone. The communication is tip top and work is professional.
Big thank you to Darren and his crew for getting my roof ready for those harsh winter storms and providing excellent service throughout the weather and driving up here a bunch!!! Thank you Julia for being so responsive throughout this entire process!
Cheers Apex! 🙂” – Stephanie C.
Call (303) 691-5035 for a free inspection (or click here if you’re online)! Let’s get your roof sealed and protected TODAY!
Frequently Asked Questions (FAQ)
What are the different types of coatings available for metal roofs?
The best coatings for metal roofs are silicone, acrylic, rubber (SEBS), and polyurethane.
- Silicone: Waterproof and UV-resistant, great for rainy or humid climates.
- Acrylic: Reflects heat, improving energy efficiency in hot, sunny regions.
- Rubber (SEBS): Expands + contracts with temperature changes to prevent cracking.
- Polyurethane: The most durable option—best for industrial use and high foot traffic.
Can a roof coating prevent leaks in my metal roof?
Yes. Silicone and rubber (SEBS) coatings seal minor cracks and gaps, creating a waterproof barrier that prevents leaks. But if your roof has significant structural damage, repair it first before applying coating.
How long does a metal roof coating last?
Most high-quality coatings last 10-20 years with proper maintenance. Durability depends on weather exposure, application thickness, and upkeep. Silicone and polyurethane usually last the longest, while acrylic may need reapplication sooner in harsh conditions.
At Apex, we provide expert inspections and use top-tier coatings to give your roof the best protection possible. Call us today for a free consultation!
How do I maintain a coated metal roof?
- Inspect every 6-12 months for cracks, peeling, or wear.
- Keep the surface clean to maintain reflectivity + waterproofing.
- Address small issues early—reapply coatings before leaks develop.
- Follow manufacturer guidelines—reapply every 10-20 years based on wear.
