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Innovation Built for the Coast. Peace of Mind for Life at the Shore.
Salt, sun, humidity and high winds. The coast is unforgiving. COASTALUME™ coated steel was engineered and warrantied specifically for the harshest conditions. With superior durability and unmatched weathering, COASTALUME steel is the difference between a roof that survives the coast and one that was built for it.
Watch: Metal Roofing Systems Testimonial: The Benefits of COASTALUME™ Steel
Stronger Than the Storm. Smarter Than Shingles
When high winds, salty air, and relentless storm seasons put their home to the test, one coastal family chose COASTALUME™ steel roofing from U. S. Steel—upgrading not just their roof, but their peace of mind. Built to endure. Designed to shine.
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Superior protection. Superior value.
Superior performance doesn't have to come with a premium price tag. Whether you’re quoting commercial or residential, COASTALUME™ roofing delivers coastal-grade durability at a price that makes sense. And it lasts for generations, minimizing the need for replacement.
REQUEST MORE INFORMATIONLimited maintenance required
COASTALUME™ steel sheets deliver long-term peace of mind with a 25-year steel substrate warranty and up to 50 years of finish protection—no fresh water rinse required. COASTALUME™ roofing systems require less upkeep year after year, which means your clients never have to think about their roof.
Watch: Worry-free Roofing
SUBSTRATE WARRANTY
Get peace of mind with a 25-year steel substrate warranty and up to 40 years of finish protection on roofing. Coverage begins at least 300 feet or more from breaking surf and large bays with no setbacks from brackish water sources.
WATCH: STEEL WARRANTIED FOR THE COASTSuperior weathering resistance
U. S. Steel’s GALVALUME® solution with exclusive Tedlar® coating resists salt spray, mold, mildew, chalk and UV damage even in areas of prolonged exposure. With a COASTALUME™ roof, you get superior protection and beauty that lasts.
See COASTALUME™ Steel Technical SpecificationsProtection against the elements
COASTALUME™ residential and commercial roofing systems are built to provide better thermal resistance and protect against water damage. From high winds to heavy rain, COASTALUME™ steel sheets stand strong—delivering protection for every zip code on a storm surge map.
Watch: Why is Florida an Ideal Market for COASTALUME™ Metal RoofingFULL-CIRCLE SUSTAINABILITY
Made from U. S. Steel’s GALVALUME® product, which contains up to 90% recycled content, COASTALUME™ coated steel is 100% recyclable at the end of its life. And with a lifespan up to three times longer than asphalt shingles, it helps reduce landfill waste and promotes a more sustainable future.
WHY COASTALUME™ STEEL SHEETS
Coastal living calls for roofing and siding that can handle the elements—beautiful, durable, and totally maintenance-free.
50 Years
U. S. Steel offers up to 50-year warranties without maintenance on the Tedlar® finish.
100%
COASTALUME™ coated steel is 100% recyclable.
3X
The average lifespan of steel roofing is 3x longer than traditional asphalt shingles.
BEST-IN-CLASS WARRANTY
STRENGTH AND PEACE OF MIND
When these homeowners wanted a steel roof tough enough for coastal weather and backed by a best-in-class warranty, the choice was clear: COASTALUME™ steel sheets.
WATCH THE VIDEODIG INTO THE DETAILS
Want to know more about what makes our COASTALUME™ system the smart choice for coastal protection? Download our fact sheet, color options, technical specifications, and warranty information—all in one place.COASTALUME™ Coated Steel Fact Sheet COASTALUME™ Coated Steel Color Options COASTALUME™ Coated Steel Technical Specifications COASTALUME™ Coated Steel Warranty
DURABILITY
STYLE THAT LASTS—COLOR THAT ENDURES
From hurricane-force winds to the everyday elements of coastal living, COASTALUME™ steel delivers more than strength—it brings lasting color to every project, offering both architectural beauty and unmatched protection.
- Extensive Color Palette: Choose from a curated selection of vibrant, weather-resistant finishes.
- Fade-Resistant: Colors stay true, even under relentless sun and salt spray.
- Stain-Resistant: Superior resistance to color chalk and fade, mold and mildew growth, and graffiti.
- Designed for Durability: Fire retardant and engineered specially for hurricane zones.
- Minimal Maintenance: Color-matching Tedlar film tape is available for touch ups that provide long-lasting curb appeal.
COASTALUME™ doesn’t just stand up to the coast—it stands out with color that lasts. Downlod the Digital Color Book.
REQUEST INFOBUILT FOR CONTRACTORS, TOO
Need smaller quantities for residential projects? Our robust distribution network makes it easy to get what you need—when and where you need it.
CONTACT A COASTALUME™ STEEL EXPERTTedlar® Technology
THE SCIENCE BEHIND THE SHIELD
Since 1960, DuPont™ Tedlar® has been trusted to protect surfaces in the world’s toughest environments. Now, it’s changing the game in American steel construction as a non-PFAS alternative to traditional paint coatings—and it's what gives COASTALUME™ coated steel sheets their unmatched edge.
Tedlar® PVF film offers:
- Fade & Chalk Resistance: Superior UV protection keeps your roof and siding looking fresh, even after years of sun exposure.
- Chemical Resistance: Salt spray, acid rain, and harsh chemicals don’t stand a chance—and cleanup is easy.
- Superior Formability: Tedlar® bends and flexes without cracking, making it ideal for complex architectural designs.
- Versatility in Design: Choose from a wide range of colors and finishes to match your vision.
Steel Stories Shorts
“Steel Story Shorts” visited the 2025 International Roofing Expo with a very special guest host—licensed home inspector and HGTV host Joe Mazza. In this episode, Joe sits down with Rob Kopf, Vice President, Sales and Marketing of U. S. Steel to discuss innovation, the 2025 industry outlook, and how COASTALUME™ steel is transforming roofing in regions challenged by extreme weather.
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