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Rusted Metal Roofing

Understanding Corten Steel


Originally designed as a steel that did not require paint to seal it from the weather, Corten steel has become a popular option for aesthetic reasons in recent years. The term "Corten" is short for the terms corrosion resistance and tensile strength. The principle behind Corten steel is that the rusting process seals in and protects the base layer of steel beneath it. 

From Mountain Modern to Texas Rustic

A popular trend that has been occurring in mountain retreats and ranch style homes, a Corten roof offers a unique appeal to many homeowners. In modern metal roofing applications, the trend tends to be using a weathering steel on a standing seam roofing panel. In more rustic styled designs, we see it used more with corrugated metal panels.

A606 Truten, the New Recipe

At Bridger Steel, we needed a product that would act like A606 Corten, but provided us with a more even and rapid patina. After testing a number of recipes, we created a slight variation to the traditional A606 Corten with our own Truten™️A606. Truten™️ has a faster patina, quickly locking in and protecting the base steel layer, while also providing a more uniformed final product. We now offer both Corten and Truten™️ in all of our panel profiles.  

Weathering Steel Designs

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Product Details
A606 Truten Properties
Originally designed by United States Steel, A606 was originally intended for use as a structural steel that required little to no maintenance.  For this reason it was installed across the U.S. on bridges and large structures.
The Rusting Process

Weathering Steel starts with a dark gray appearance and as it is exposed to the elements it begins to naturally rust. The steel is allowed to rust and that rust forms a protective coating that will help slow the rate of future corrosion.  A weathering steel metal panel is unique in its constantly changing and unpredictably striking patina.


Weathering Steel Care

We recommend that if you intend to install weathering steel as a roofing product you take care to maintain your roof regularly, keeping it free of leaves or twigs. Being diligent to inspect your roof properly will have an significant impact on how long your roof lasts.

Find out more about Weathering Steel Care

Corten Alternatives

If you aren't looking to wait for traditional Corten products to rust, our Rustic Rawhide finish is for you. This finish uses a combination of high quality paint systems and textures to mimic the look of rusted metal and comes with a 30 year paint warranty.


Find out more about Weathering Steel Roofing

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