Standing seam metal roofing is a popular choice for commercial and residential buildings due to its durability, weather resistance, and sleek appearance. The term “standing seam” refers to the raised interlocking system that joins the metal panels together. This design not only adds strength and rigidity but also creates a tight seal to prevent water penetration. There are several types of standing seam systems available, each with its unique characteristics and benefits. In this article, we will explore five types of standing seam systems: snap-lock, mechanical lock, batten panel, nail flange, and double lock.
Snap-Lock Standing Seam
Snap-lock standing seam systems are one of the most common and easiest to install. As the name suggests, these systems feature panels that simply snap together, creating a secure and watertight seal. The panels have pre-formed seams that interlock without the need for special tools or equipment. This makes snap-lock systems an excellent choice for projects with tight timelines or budgets.
Despite their ease of installation, snap-lock standing seam systems offer exceptional durability and weather resistance. They are capable to withstand high winds, heavy rains, and even hailstorms. Plus, they’re available in a wide range of colors and finishes that enable you to customize the look of your roof to match your home’s exterior.
Mechanical Lock Standing Seam
Mechanical lock standing seam systems are similar to snap-lock systems, but they require a seaming tool to join the panels together. This tool folds the seams over each other, creating a tight and secure connection. While this process is more labor-intensive than the snap-lock method, it results in a stronger and more durable seam.
Mechanical lock systems are particularly well-suited for low-sloped roofs, as the folded seams provide superior water and wind resistance. They’re also an excellent choice for roofs with complex shapes or designs, as the panels can be custom-formed on-site to fit any configuration.
Batten Panel Standing Seam
Batten panel standing seam systems feature a two-part design: a flat panel and a batten or cap that locks the panels together. The battens create a raised profile, adding depth and dimension to the roof’s appearance. This makes batten panel systems an excellent choice for homeowners who want to add architectural interest to their homes.
In addition to their aesthetic appeal, batten panel systems offer exceptional durability and weather resistance. The battens provide additional rigidity, helping the roof withstand high winds and heavy snow loads. Plus, the raised seams allow water to drain quickly, reducing the risk of leaks.
Nail Flange Standing Seam
Nail flange standing seam systems, also known as fastener flange systems, are designed for quick and easy installation. These systems feature a flange with pre-punched holes along the edge of each panel. The panels are thoroughly secured to the roof deck using nails or screws, and then the next panel is installed over the fasteners, hiding them from view.
While nail flange systems are less expensive and faster to install than other standing seam systems, they’re not recommended for areas with high winds or heavy snow loads. The exposed fasteners can become a weak point, potentially leading to leaks or damage.
Double Lock Standing Seam
Double lock standing seam systems, also known as field-locked systems, are the most durable and weather-resistant of all standing seam options. These systems require a special tool to fold the seams over twice, creating a double lock that’s virtually impervious to wind and water.
Due to their superior strength and durability, double lock systems are often used on commercial buildings or homes in areas with extreme weather conditions. However, they’re also the most labor-intensive and costly to install.
Read: [Pros and Cons] Standing Seam Metal Roof for Residential Homes
In conclusion, standing seam metal roofing offers various range of options to suit different needs and budgets. Whether you choose a snap-lock, mechanical lock, batten panel, nail flange, or double lock system, you’ll benefit from the durability, weather resistance, and aesthetic appeal of standing seam metal roofing. By understanding the characteristics and benefits of each type, you can make an informed decision about the best standing seam system for your home or building.
