When it comes to standing seam metal roofing, two popular options are the double lock and snap lock standing seam roofs. Both offer unique benefits and have their own set of drawbacks. But how do they compare? Let’s take a closer look.
Understanding Double Lock Standing Seam Roofs
Double lock standing seam roofs are known for their superior durability and weather resistance. The term “double lock” refers to the way the seams between each panel are secured. Instead of being folded over once (as in a single lock system), they’re folded over twice. This creates a tighter seal that offers enhanced protection against leaks.
These roofs can be made from a variety of metals, including steel, aluminum, copper, and zinc. The installation process is more complex than that of a snap lock system, requiring special seaming tools to create the double lock.
Understanding Snap Lock Standing Seam Roofs
Snap lock standing seam roofs, on the other hand, are known for their ease of installation. As the name suggests, the panels in this system simply snap together, eliminating the need for special seaming tools. This can make the installation process faster and less labor-intensive.
Like double lock roofs, snap lock roofs can be made from a variety of metals. They also feature hidden fasteners, which contribute to a clean, modern aesthetic.
Comparing Durability and Longevity
Both double lock and snap lock standing seam roofs offer excellent durability and longevity. However, the double lock system’s extra fold at the seams provides an additional layer of protection against leaks. This can make it a better choice in areas with heavy rainfall or snowfall.
On the other hand, snap lock roofs are still highly durable and can withstand harsh weather conditions. When properly installed and maintained, both types of roofs can last for decades.
Comparing Installation Process
The main difference between double lock and snap lock standing seam roofs lies in the installation process. Double lock systems require more labor and special tools to create the double lock at the seams. This can make the installation process longer and more expensive.
Snap lock systems, on the other hand, are designed for easy installation. The panels simply snap together, eliminating the need for special seaming tools. This can significantly reduce the labor cost and the installation time.
Comparing Aesthetics
Both double lock and snap lock standing seam roofs offer a clean, modern aesthetic that can enhance the curb appeal of any home. They’re available in a wide range of colors and finishes, allowing homeowners to customize the look to their liking.
Potential Drawbacks
While both types of standing seam metal roofs offer many benefits, they also have potential drawbacks. Double lock systems, for example, can be more expensive upfront due to the complex installation process. However, their superior durability and weather resistance can make up for this initial cost over time.
Snap lock systems, while easier and less expensive to install, may not offer the same level of protection against leaks as double lock systems. However, they still provide excellent durability and longevity.
In conclusion, both double lock and snap lock standing seam roofs offer unique benefits. The best choice depends on your specific needs and circumstances. If you live in an area with heavy rainfall or snowfall, a double lock system may be worth the extra investment. However, if ease of installation and lower upfront cost are your main concerns, a snap lock system may be the better choice. As always, it’s important to consult with a professional roofer to determine the best option for your home.
