If you are considering a new metal roof as potential replacement option for your aging asphalt roof, or you simply want to learn more about this sturdy and energy efficient roofing option, then check out list of the top 70 metal roofing facts below:
In order to help you navigate this long list, we broke it down into the following categories:
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Materials Pros & Cons:
1. Metal roofs can be made from a variety of metals and alloys including Galvanized steel (hot zinc dipped G-90 steel, or G-60 steel coated with thinner, least-expensive coating), Galvalume steel (Zinc and Aluminum coating — more expensive and longer lasting compared to G-90 steel.), stone-coated steel (G-90 galvanized steel), aluminum, copper, zinc, terne (zinc-tin alloy), and stainless steel.
- The downside of galvanized steel is that it can corrode, eventually, especially when exposed to the moist salt-spray environment, such as near the coastal lines and salty marine environments.
It must be noted that all things being equal, Galvalume steel offers a greater degree of corrosion-resistance and hence longevity than G-90 galvanized steel. G-60 steel is joke compared to Galvalume steel and its cost reflects that. 😉
- Steel is the most frequently used material in both residential and commercial metal roof and wall applications, mainly due to its superior durability, strength, and slightly lower cost than aluminum.
Aluminum is the second most popular metal in roofing after steel. It is not affected by the moist salt spray environments like coated steel. Aluminum is only slightly more expensive than steel, but it’s far less expensive than premium metals such as copper, zinc, titanium, and stainless steel.