Snow Guards for Standing Seam Steel Roofs by ExSteel

What are the best snow retention solutions for ExSteel's standing seam steel roofing systems?

During winter, standing seam metal roofs can release built-up snow and ice without warning, creating potential hazards for people, pets, and property below.

To mitigate these risks, it's essential to select snow retention systems that are compatible with the roof's profile and to seek expert advice tailored to the project. Installers working with concealed fastener panels benefit from specialized recommendations tailored to their specific installation needs. This blog series offers ongoing insights into snow guard options suited for various panel designs and highlights trusted metal roofing brands. The goal is to empower users to make informed decisions that improve safety and reduce snow-related damage.

ExSteel: A Trusted Name in Metal Roofing

Based in Aylmer, Ontario, ExSteel specializes in steel roofing and wall systems engineered for Canada's harsh climate. Since 2004, the company has served diverse sectors across North America, including industrial, agricultural, recreational, commercial, and institutional, offering components for both new construction and retrofit projects. Known for its in-house manufacturing and strict compliance with ASTM A792, ExSteel ensures consistent quality across its entire product line, including the versatile RTL-24 standing seam panel. Backed by ISO 9001:2015, CSA A660, and CWB certifications, the company maintains high standards of accountability and quality. Originally part of Steelway Building Systems under Ardent Industries, ExSteel evolved to meet growing demand by supplying steel accessories directly to contractors. Today, it continues to deliver durable, visually appealing solutions with expert support and technical guidance.

RTL-24 Trapezoidal Panels

The RTL-24 trapezoidal standing seam panel combines strength, weather resistance, and bold design, making it ideal for residential, commercial, and agricultural buildings. Each panel measures 24 inches in width with a 3-inch seam height, built to ASTM A792 standards and featuring a 50 ksi yield strength. Its trapezoidal seam allows for wider spans without solid decking, reducing structural costs. Seam-locking options, RollLoc, TripleLoc, and QuadLoc, offer tailored protection against water intrusion and high winds. Concealed fasteners maintain a clean roofline and minimize the risk of leaks. With its dimensional rib profile, the RTL-24 delivers architectural impact and long-term durability, often exceeding 40 years with minimal upkeep.

The RTL-24 panel supports a wide range of snow retention systems, particularly adhesive-mounted polycarbonate guards. Proper adhesive application is crucial for preventing moisture entrapment and ensuring lasting performance. Larger models, such as IceJax II, Snojax II, and SnoBlox Ace, provide robust snow control. At the same time, compact options, like IceJax I and SnoBlox Deuce, are ideal for smaller-scale installations. For added protection, SnowBreaker and SnowBreaker 3M offer reliable performance. The AppLok 450 rib profile also accommodates clamp-on systems, including SnoCleat RC, SnoCleat RCT, SnoBar, and ColorBar. Contractors can install these using stainless steel SnoBar clamps or aluminum RoofClamp hardware. We recommend a test installation to verify proper fit and compatibility.

ExSteel Compatibility Chart for Snow Guards

Considerations for Adding Snow Guards to Standing Seam Roofs by ExSteel

Apply adhesives in the correct season.

Install adhesive-applied snow guards only when temperatures are above 50°F to ensure proper curing, which typically takes around 28 days. They become resistant to moisture within the first 24 hours. Do not use Surebond SB-190 on copper surfaces due to incompatibility.

Verify that guards suit your roofing system.

Ensure the snow guards you select are compatible with your roof's material and design. Use our compatibility charts for reference and guidance.

Plan layouts that balance snow loads.

Ensure even snow distribution by placing pad-style guards in staggered patterns or using rail systems in continuous rows. Refer to our spacing recommendations for best performance.

Select roof finishes that complement your roof.

Select from powder-coated or custom-colored finishes to complement your roof's appearance. DIY options may be quicker, but custom hues require additional lead time.

Adjust installation for complex roof details.

Modify guard placement to accommodate valleys, curves, and other unique roof features, ensuring consistent snow retention and preventing potential hazards.

Follow installation methods approved for warranties.

To protect your roof's warranty, use approved, non-invasive mounting methods, such as adhesive or clamp-on systems, for standing seam panels. This practice helps avoid leaks caused by penetrative fasteners.

Order sample snow guards to check the roof fit.

Sample guards are available for individual purchase with no minimum quantity required. Testing a guard beforehand ensures a proper fit and helps avoid costly errors during installation.

Account for regional snow load requirements.

Consult local building codes to determine ground snow load values before choosing a snow retention system. Pad-style guards typically support up to 45 pounds per square foot; for heavier loads, we recommend rail systems.

Using systems built for unusual roof shapes.

Curved or uniquely shaped roofs may need custom snow retention solutions. Always check with the roofing manufacturer to find the most suitable option.

Incorporate accessories to manage ice.

If ice movement is a concern, consider installing IceStoppers with rail systems to prevent ice buildup. These add-ons help block ice sheets from sliding beneath the rails, especially on taller standing seam roofs.

Conclusion

We're here to support you at every stage of your snow guard installation journey. Whether you connect with us online, by phone, or via email, our team is ready to provide customized guidance tailored to your specific project needs. To make choosing the right system easier, we've created a detailed Snow Guard Buyer's Guide. Our Best Practices section shares expert insights to help you avoid common mistakes. With clear instructions and proven products, we aim to give you the confidence to install effectively, because dependable snow retention and exceptional customer service are central to everything we do.

Do you have a metal roof from a different manufacturer?

Visit our "Snow Guard Compatibility by Roof Manufacturer" resource page for detailed information on which snow guards and snow retention systems are compatible with your metal roof.

Disclaimer

The views, recommendations, and information presented in this blog are solely those of the author and do not necessarily reflect the opinions or positions of the featured panel manufacturer, its brands, subsidiaries, or parent companies. Customers are strongly encouraged to reach out directly to the roof panel manufacturer for inquiries regarding snow guard compatibility with their products, as well as to address any potential warranty issues that may arise following the installation of our products.