Dubbed COASTALUME™, the product combines the strength and self-healing characteristics of U. S. Steel’s GALVALUME^® product with DuPont’s Tedlar^® polyvinyl fluoride (PVF) film barrier that helps resist saltwater corrosion, UV damage, cracking, impact and more.
 
By combining these two materials for the first time, U. S. Steel said in a press release that it and DuPont have “built a maintenance-free roofing solution that offers a level of durability and reliability needed in residential and commercial construction along the coast.”
 
“Steel is infinitely recyclable, unlike other building materials, and our steel is mined, melted and made here in America,” said Robert Kopf, vice president sales and marketing, at U. S. Steel. “With our new product COASTALUME, we combined our steel with the proven performance and durability of DuPont Tedlar PVF film, and fully address the unique needs of coastal construction, which must withstand the toll that wind and saltwater inflict over time.”
 
COASTALUME’s best-in-class coastal warranty covers roofing and siding products installed up to 300 feet from breaking surf, large bays, marshes and other coastlines.