Choosing Between Through-fastened and Standing-seam Metal Roofing

By Anna Lockhart. 

When deciding between these two options, it comes down to situational factors and preferences. This article breaks down the differences and what you need to know before making the decision!  

As metal roofing continues to grow in popularity, home and building owners have had to make the choice between the two most common kinds of metal roofs: through fastened and standing seam. While both options have their benefits and setbacks, learning the key differences between the two and which works better for your project is important.   

Through-fastened metal roofing  

This traditional style of metal roofing is also known to some as screw-down metal roofing and consists of a simple installation method in which panels are secured directly into the roof deck of the structure with screws. This traditional style of metal roofing is very cost effective and requires a shorter installation period and fewer laborers to get the job done.  

The downside, however, is that through-fastened metal roofing often has issues with durability around the screw points. As time passes and weather erodes the screw and hole areas, these roofs can become problematic and need replacing. While these changes can take years or even decades to occur, it makes for a less lengthy investment than other methods.  

Standing-seam metal roofing 

Where through-fastened metal roofing is a traditional approach to metal, the standing-seam style has gained popularity in recent years. The standing-seam roof is attached to the structure with clips or prepunched fastening flange rather than screws, making it a durable and long-lasting option that is less prone to leaks and weather damage.  

A main drawback of choosing standing-seam metal roofing is the price, requiring more time and money to properly install.  

Finding the right roof option comes down to personal preferences and means. The metal experts at McElroy Metal are well versed in the pros and cons of standing-seam versus through-fastened roofs and are always eager to help their customers find the best solutions for their projects.  

Learn more about the benefits and drawbacks to both metal roofing styles on the McElroy Metal blog.