Corrosion will create holes in the material. In addition to that, the rust will not stabilize but instead corrode on the roof. As the salt spray is deposited on the Corten, it will prevent the inner protective layer of oxidation from forming. Coastal EnvironmentsĬorten steel does not perform well near places by the ocean due to the salt particles in the air. Along with that, those tropical areas will cause the Corten to corrode. Without that stage, the protective oxides do not crystalize. After the Corten steel gets wet, it needs a period to dry out. The rust will not reach its stable point with consistent moisture. These tropical environments inhibit the development of the patina. Very humid climates with heavy rainfall are not ideal for Corten roofs. Here are some of the climates where Corten should not be installed. This region has distinctive seasons that can help the patina’s development. Denver, CO, is one of those ideal locations for Corten steel. In some cases, these environments will damage the material. Some climates are not recommended for Corten roofs. Related: The Top 20 Most Common Roofing Mistakes What Climates and Weather Conditions Should Corten Not Be Used in As a result, the Corten steel must be replaced. If Corten steel is used in the wrong environment, it will not stabilize, leading to the material becoming punctured. Climates with set dry and wet weather periods are the best to develop a patina. After a few years, the rust layers will stabilize, resulting in a maintenance-free material with a gorgeous appearance. At the same time, the underlying solid steel becomes thinner as it adapts to the drying and wet phases. During these rotating cycles, the first layer of the Corten becomes thicker. What Climates and Weather Conditions Should Corten Be Used in?Ī Corten roof needs to be placed in an alternating dry and wet weather cycle for the patina to develop. In harsh climates, Corten roofing is a very desirable product, lasting longer than other types of materials. As those corrosive resistance properties are inhibited deeper into the metal, it negates the need for rust-prevention maintenance. You will notice a coating of dark brown oxidation is present on the metal. Since Corten contains manganese, nickel, chromium, and copper, the corrosive effects of fog, ice, rain, and snow will be visible on the roof’s surface. Within a few months, this material develops a rustic texture and finish. After the Corten roof has been installed, it will be exposed to the weather elements. No matter what type of material is placed on the roof, it will get wet from the rain or snow. These prices have varying price points, but they typically run about $1 to $4 per square foot. If you want an estimated cost for a Corten roofing project, make sure to reach out to a roofing contractor in Denver, CO. The size of the job, location, trim, accessories, and size of the panels can all affect the price. Many factors can affect the final cost of a Corten roofing installation. Once that happens, the steel lasts anywhere from a couple of decades to over a century. Once the protective rust has developed, the Corten roof exhibits corrosion resistance. This type of steel needs a dry and wet weather cycle to oxidize. In most cases, the Corten roofing begins to rust within six months of exposure to the elements. Developing that patina depends on certain environmental factors and the local climate. Related: How Long Does a Roof Last? How Long Does Corten Steel Take to Rust, and How Long Does it Last?Ĭorten steel is considered a corrosion-resistant product, but it is not rust-proof. This type of roofing needs to be installed in the right environment. However, some climates might prevent the rust layer from forming or becoming stable. For the natural oxidation processes to occur, Corten roofing requires a specific type of environment to develop a patina.Īt first, the Corten steel will have a rustic appearance, with the patina process stabilizing after 2 to 3 years. Getting that point of protection is not easy for many building owners. While many consider this material to be low-maintenance, it only reaches that stage after a protective layer has formed. This unique finish has a distinct appearance and features a naturally oxidizing coating. What is Corten Roofing, and What Does Corten Stand For?Ĭorten steel is also called weathering steel. Here are a few things you need to know about Corten roofing.Īre you searching for the right roofing options in Denver? At Advanced Consulting, our team can help walk you through the process of selecting your next roof. Like any other building material, this steel has its advantages and disadvantages. Unfortunately, Corten roofing cannot adapt to certain types of climates. This material brings plenty of texture and interest to a roof. It features an industrial-looking finish that will last for decades. Corten steel is a hot commodity in the roofing industry.
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