The Metal Roofing Contenders – Corrugated Metal and Standing Seam
When the phrase “metal roofing” is mentioned in common conversation, what may come to mind for many folks is a roof that’s been covered with corrugated metal. But while corrugated metal was a standard style for many applications at one point in time, it’s no longer the only – or even the best – metal roofing style. Standing seam metal delivers some additional features which add more value to your roof, improving both its performance and its longevity. While there are certainly things to like about both types of metal roofing, the differences boil down to a few key areas:
- Material thickness and design
- Fastening system
- Performance and durability
There’s a great video comparing corrugated metal panels to standing seam metal roofing on Skywalker Roofing’s YouTube channel which has actually gone viral (well over 1 million views!); it would certainly be worth your time to click over and take a look. But if you’d like to see some of the pros & cons of both standing seam metal and corrugated metal listed and explained on one convenient page, you’ve come to the right place!
What Makes Metal a Good Choice for Roofing in the First Place?
Before we get any further into the details of corrugated metal and standing seam metal, let’s take a step back and answer an even more basic question first. Why should you be considering a metal roof in the first place? There’s really a lot to like about metal as a roofing material, and this is a subject we’ve addressed before in other blogs. Shingles may still be the most popular roofing material in America, but metal is really a better choice for quite a few reasons. Metal is incredibly durable, requires less maintenance, is naturally fire-resistant & pest-resistant sheds precipitation & debris well, and comes in a variety of color and profile options. While a metal roof does cost more on the front end, it also pays many more dividends over time than a shingle roof.
All that being said, which is the best metal roofing approach to take? Let’s now take a closer look at each of the two most popular metal roofing styles.
Corrugated Metal Roofing Explained
Corrugated metal has been used to cover roofs around the world for decades. “Corrugated” literally means “shaped into alternating ridges and grooves.” Just as corrugated cardboard can be used to construct some pretty sturdy boxes, corrugated metal also offers some impressive structural strength for many roof applications, thanks to its ridged design. The corrugated metal is produced by taking a sheet of metal coil and putting it through a roll-forming machine, which shapes the metal panels into a preset corrugated pattern.
PROS: Corrugated metal continues to be a popular metal roofing method, especially for many commercial, barn, and other non-residential applications. It’s a lower-cost option than some other metal roofing approaches, it’s effective at reflecting away a lot of sunlight and heat, and is more durable and longer-lasting than an asphalt roof.
CONS: One key liability with corrugated metal roofing is that it presents exposed fasteners. While there are treatments available to help protect and preserve these fasteners, regular inspections are still required every few years to ensure that the washers are still intact, and that the fasteners haven’t loosened. In addition, each exposed fastener presents a potential source of leak development over time. Another con where corrugated metal is concerned is simply a matter of aesthetics. While the colors are fairly customizable, the corrugated pattern itself doesn’t carry a reputation of being nearly as eye-appealing as the smoother look of a standing seam finish.
Standing Seam Metal Roofing Explained
Like corrugated metal roofs, standing seam roofs are also designed with metal panels which are fabricated by roll forming. The key difference is in the design and application – standing seam roofs take advantage of concealed fasteners. A standing seam system consists of wide, relatively flat metal panels that have vertical legs (or “ribs”) on each end. The metal panels are designed to lock together, and are mounted to the roof by being fastened to the sheathing underneath through a series of hidden clips. All the roof attachments and seams are literally hidden beneath the vertical legs of the standing seam panels.
PROS: When it comes to the pros of a standing seam metal roof, there are many. For starters, the panels are fabricated with a stronger gauge of metal than is used for corrugated metal. No exposed fasteners or seams means there are essentially no opportunities for leaks to develop, and a standing seam system also requires much less in the way of maintenance. It’s also highly-customizable in terms of colors and profile options, and is even more efficient at reflecting away light and heat. Aesthetically speaking, many homeowners prefer the visual appeal of a standing seam roof with its flat panels and sleek lines. And in terms of longevity, a standing seam roof can easily last you 75 years or more!
CONS: There really aren’t many. The main caveat with a standing seam roof is initial cost. A standing seam roof isn’t cheap, and does cost a good bit more than a corrugated metal roof. One other potential issue with standing seam is that the larger, flatter metal panels are also somewhat more prone to being dented in the event of severe hail or falling debris. Even so, there are some standing seam panel design strategies available which can help to further minimize the potential for oil canning or denting.
What Makes Standing Seam Metal Roofing a Truly Superior Choice
There are things to like about both corrugated metal and standing seam metal as roofing options. Which is right for you? That will depend upon many factors, including your unique situation, your personal preferences, and your available budget. If it’s just about finding the cheapest metal roofing option, then corrugated is the way to go. However, if you want a roof with much greater longevity, much less maintenance, much more reliable performance, and some truly beautiful aesthetics, then you really can’t beat a properly-installed standing seam metal roof.
In addition to the benefits listed above, there are other features worth noting with a standing seam metal roof, as well. Want to add a snow retention system, some solar panels, or other external roof features? With standing seam, these items can be mounted without needing to penetrate the metal or put any holes in the roof’s surface. Fewer holes means fewer opportunities for moisture to infiltrate. Standing seam metal roofs are incredibly wind-resistant too, and have even been demonstrated to withstand Category 4 hurricane-force winds. And another issue to be mindful of with a metal roof is the fact that metal naturally expands and contracts with temperature changes. With other metal roofing styles that could be a problem, but standing seam roofs are designed to take those expansions and contractions in stride. The raised metal seams remain interlocked, but the whole system has the ability to “float” on its clip mounts as the metal expands and contracts. This level of flexibility and adaptability is something you simply won’t find in a roof mounted with exposed fasteners.
So What Now? Start by Choosing the Right Roofing Provider!
Choosing the right roofing material and roofing style is certainly important, but choosing a local, professional roofing contractor you can trust is even more important. The pros at Skywalker Roofing have been providing and installing custom-made metal roofs for years, and no local provider is more respected or more highly rated in both NC and southern VA than Skywalker!
We’re the premier roofing contractor serving the NC Piedmont Triad, Piedmont Triangle, Charlotte Metro/Lake Norman area, and southern/southwestern VA region. Plus, we’re proud to say that our customers consistently give us an average rating of 4.9 out of 5 stars!
Got questions? Ready to get started? You can reach out to one of our friendly experts by simply calling +1 (336) 627-5596. We’d be glad to answer any questions you may have, and we’re also ready to schedule your FREE home or business inspection and personal consultation!
Ready to get the last roof you’ll ever need? That’s what we deliver! Connect with us today, and experience the Skywalker Roofing difference for yourself!