![]() ![]() Many coil coating companies make systems specifically designed to resist the issues commonly plaguing coastal roofs. A two-coat coil-applied PVDF system will help resist the harsh coastal environment.” Another option is stone-coated steel, which can provide prolonged resistance. A Polyvinylidene Difluoride (PVDF) coating is recommended to help keep the substrate metal free from oxidation. ![]() Bare metal is much more prone to oxidation, nothing stopping the salt spray from interacting with it. According to Lord, “It is important to utilize a coated metal when on the coast. Once a metal type is chosen, next up on the list of considerations is the coating/finish. Has a higher resistance to corrosion than galvanized. Zinc-Alum Coated Steel (commonly known as Galvalume®): Strong. Stainless Steel: Strong has some corrosion to fasteners of carbon steel. Patina darkens the coloring and the cost is high.Īnderson also added that alloys can bring added benefits: Warranty and performance to winds may be lower. Zinc: Though highly corrosion-resistant, does not have the strength of steel. Patina of aluminum oxide will dull the bare color. Warranty and performance to winds may be lower than other materials. Has a high cost and is heavier than other metals.Īluminum: Though highly corrosion-resistant, also does not have the strength of steel. Warranties and wind performance may be lower than other materials. Natural metals are often said to perform best, as shared by Robin Anderson, Technical Manager for Boral Roofing, who noted about each:Ĭopper: Though highly corrosion-resistant, copper does not have the strength of steel. The entire roof system will be less of a load on the structure, but won’t stand up to the punishment of a severe hailstorm as well as steel. Aluminum is more cost-effective than stainless steel and zinc and still does a superb job at handling salt-spray environments.” He recommends avoiding galvanized steel as it can rapidly corrode in this environment.ĭrexel Metals’ Director of Sales, Ken McLauchlan, added that while aluminum is more corrosion-resistant than steel (and is lighter), it is also softer. Stainless steel and zinc are also great options, but tend to be more expensive. Travis Lord, Product Manager for The Garland Company, said, “When on the coast, typically the go-to will be. Here are areas to consider when bidding a metal roofing job by the sea. roofing market requires solutions that can stand up to this often-harsh environment. With 22 states boasting saltwater coastline, the U.S. The NOAA also states that annually, coastal counties produce more than $8.6 trillion in goods and services-the businesses producing this money are housed in commercial, industrial, agricultural, or residential buildings, which also need roofs. Faced with salt spray exposure and hurricane-force wind and rain, more and more seaside homeowners are choosing metal roofing due to its hardiness, longevity, and proven track record along the coast. That’s a lot of people, who require a lot of residential structures, which need a lot of roofs. coastal counties according to a report by the National Oceanic and Atmospheric Administration’s (NOAA) Office for Coastal Management. In 2010, 123.3 million people lived in U.S. Energy savings and other direct benefits are contingent upon building type, location, and use.2.4K Considerations and concerns for coastal installations Cool roofs may also contribute to strategies for optimizing energy performance. They may also comply with LEED® and Green Globes rating requirements for steep slope Solar Reflectance Index (SRI).Ĭhoose from a palette of light neutrals to dark saturated colors to achieve your vision while helping the environment. Incorporating advancements in coating technology, the energy performance characteristics of Metal Sales finishes and colors meet demonstrated requirements established by ENERGY STAR® and the Cool Roof Rating Council (CRRC) for solar reflectance and thermal emittance for steep sloped and/or low sloped buildings. This system features multi-layer protection and is warranted for long lasting durability and chalk and fade resistance. Metal Sales offers a wide variety of color choices with our high performance PVDF, MS Colorfast45, MS Crinkle Finish, ColorFit40 coating systems. ![]()
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