Learn How To Avoid Metal Roofing Rust

Learn How To Avoid Metal Roofing Rust

August 22, 2019 | Filed under: Buying a New Roof,Research

Rust Metal Roofing Classic Metal Roofing Systems

We have been looking in-depth at topics about metal roofing that we often find that even contractors do not fully understand. In this post,  we will talk about metal roofing rust and cut edge protection. For you, as a property owner, that boils down to “How can I ensure that my metal roof won’t rust?”

Metal Roofing Rust

Of course, the most certain way to ensure rust protection is with a non-ferrous metal such as copper or aluminum that will never rust.  All but one of Classic Metal Roofing Systems product styles are manufactured from aluminum. However, we also manufacture quality products made of steel.

Steel roofing can offer specific desirable attributes for some homes, and often at a lower price point. But how do you keep a ferrous metal like steel from rusting?

For Steel Roofing Avoiding Rust Comes Down to Two Things:

  1. The use of quality base metal with a high degree of zinc in the anti-corrosive coating. For the steel roofing products we supply, our G90 galvanized steel has the most zinc content of any widely available steel roof. It has more zinc than the common (and cheaper) Galvalume products that are out there. We have also seen offshore products coming into the United States with alarmingly low amounts of zinc on them. The zinc is critical, though because that is what protects the cut edges.
  2. The proper installation, which means edge cuts are crisp and clean, and any scratches on the metal, are neatly touched up. First of all, it’s important to realize that there really is no difference between factory edges and edges made from cuts on the job site. Both are ultimately at risk of rust. Field-cut edges, due to the lack of precision that often exists on job sites, are at considerable risk of rust. Our factory-trained experts’ installation techniques and practices ensure that your steel roof can avoid rust.

To get an in-depth explanation of the chemistry and other factors involved in protecting a steel roof from rust, read this short article by Roofing Expert Todd Miller.

Please know that our team represents years of experience in roofing. We’re here and ready to help you make the very best roofing decision for your home or project.

This post appeared first on https://www.classicmetalroofingsystems.com

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