Snow Guards For Exposed Fastener Metal Roof Panels by Butler Manufacturing

See the Snow Guards Compatibility Chart for Butler Building Systems Exposed Fastener Metal Roofing.

Butler exposed fastener metal roof panels require snow guards and snow retention systems designed around rib spacing, fastener placement, and panel geometry. Below are recommended SnoBlox-Snojax solutions and compatibility considerations for these roof systems.

Butlerib II Profile

Industry experts widely regard the Butlerib® II as the premier through-fastened roof system. This roofing solution offers exceptional value, emphasizing cost-effective installation and low maintenance requirements. As the foundational roof system for Butler's renowned Widespan™ structural system, the Butlerib® II boasts a robust 1½-inch corrugation profile with 12" rib spacing and a 36" coverage width, contributing to its unparalleled strength and durability. This panel is available in 24 or 26-gauge steel and lengths up to 40'. One of the standout features of this roof system is its pre-punched design, which ensures precise endlap alignment and streamlines the installation process. Additionally, the factory-slotted holes allow for seamless expansion and contraction during seasonal temperature fluctuations, minimizing wear and tear over time. The pre-formed sealant grooves enhance the system's weathertight performance by promoting accurate sealant placement between panels. The Butlerib® II's unique "return leg" full side-lap corrugation provides exceptional support at the panel side laps. At the same time, Butler's exclusive Lock-Rivet™ fastener reinforces the system's weathertight capabilities. See the Snow Guards Compatibility Chart for Butler Building Systems Butlerib II Metal Roofing.

Moreover, the roof system can be easily insulated with fiberglass blanket insulation or the ThermaLiner™ insulation system, offering superior energy efficiency and thermal performance. Backed by an array of certifications and warranties, including a UL Class 90 wind uplift rating, U.S. Army Corps testing, FM Global approval, and Miami-Dade County certification, the Butlerib® II roof system exemplifies Butler Manufacturing's commitment to quality and reliability. With a 10-year weathertightness warranty option, this robust roofing solution is a testament to Butler's dedication to delivering exceptional value and long-lasting performance in the metal building industry.

The Butlerib® II panel is versatile for snow guard installations, seamlessly integrating with many snow guard systems. Compatible options include screw-down SnoBar and ColorBar snow rail systems, SnoCleat PBR, and the comprehensive lineup of stainless steel SnowCatcher designs, such as the standard rectangle shape and decorative Kodiak, Maple Leaf, Fleur-de-lis, Sun Burst, and Mustang models. Polycarbonate snow guards, commonly used with this panel, offer the flexibility of adhesive and screw-down installation methods, except for the Snojax I, which requires mechanical fastening. Larger models like the SnoBlox Ace and Icejax II are popular for use on the Butlerib® II panel. At the same time, some customers may prefer smaller guards like the SnoBlox Deuce. These guards retain snow and ice on the roof. For controlled shedding, we recommend the SnowBreaker and SnowBreaker 3M guards. When installing snow guards with mechanical fasteners, it is crucial to secure them by screwing them down through the low flats of the panel and into a sturdy underlying structure. This approach ensures maximum strength and effectiveness. Mounting screw-down individual snow guards or rail systems onto the high ribs of the panel is strongly discouraged, as it can compromise the installation's integrity and performance. For comprehensive guidance on correct mounting techniques, refer to our blog titled "Mounting Snow Guards on the High Ribs or the Panel Flats: Which is Correct?" This resource provides valuable insights and best practices for a successful, long-lasting snow guard installation.

Considerations for Snow Guard Installation on Butler Exposed Fastener Metal Roofing

1. Layout Planning

Carefully plan the layout of your snow retention system, adhering to the manufacturer's recommended guidelines. Our website offers complimentary spacing charts and custom layout quote requests for our bar systems and individual pad-style snow guards. Exercise caution and avoid positioning snow guards in isolated areas, such as above doors, HVAC units, or chimneys, as this often leads to overloading and failure of the snow retention system, regardless of type.

2. Color Coordination

Explore our color-matching options to integrate our metal snow guards with your roof's aesthetic. The SnoCleat PBR, SnoCleat 2.67, and ColorBar rail system are compatible with slide-in color strips, which you can purchase or create from leftover roofing material. Alternatively, opt for custom powder coating in your desired color, with a typical turnaround time of 3 to 4 weeks. Suppose you require a quicker solution or prefer greater color control. In that case, you can powder coat or paint the guards locally after delivery.

3. Safeguarding Roof Integrity

Prevent potential leaks by utilizing products like SnoCleat PBR, SnoCleat 2.67, SnowCatchers, and screw-down rails, which come equipped with butyl gaskets that create a secure seal when used in conjunction with our Master Gripper/Driller screws and neoprene washers. For added peace of mind, some customers apply an extra bead of silicone sealant. When working with polycarbonate guards, use a neutral-curing silicone to seal the entire base, allowing it to ooze around the edges before smoothing with a gloved finger. We recommend the NovaFlex MR150 sealant.

4. Adhesive Installation Timing

You can install screw-down snow guards and rails year-round if your roof has no snow, ice, or debris. However, you must carefully time the installation of adhesive-mounted guards. Our SureBond SB-190 adhesive for polycarbonate guards requires approximately 28 days at 50°F to cure fully. Late spring or early summer is typically the ideal installation period across most of the U.S. and Canada. Colder temperatures will pause the curing process until it warms up again. Rain won't affect the adhesive after 24 hours, but avoid using SB-190 on copper roofs, as the adhesive and metal might react, leading to premature corrosion.

5. Secure Fastening Techniques

When screwing in snow guards, ensure you're penetrating at least 1" of solid wood decking, purlins, or added blocking. For pre-engineered metal buildings, fasten them to the metal purlins whenever possible. Avoid simply screwing into the panels, as this could lead to potential issues. If you cannot easily add blocking and your ground snow load is 45 psf or less, consider switching to adhesive-mounted snow guards instead.

6. Ground Snow Load Awareness

Ground Snow Load refers to the maximum snow weight your roof can withstand. You can obtain this information online, consult your building plans, or inquire with local authorities about your area's specific number. For ground snow loads under 45 psf, you can utilize adhesive or screw-mounted individual guards and bars. However, we recommend exclusively employing snow rail systems for loads exceeding that threshold.

Conclusion

SnoBlox-Snojax works to deliver an outstanding customer experience while you select and install your snow guards. Our knowledgeable support team is readily available to address any inquiries or concerns. Feel free to contact us via email at support@snojax.com or by phone at 1-800-766-5291. We have curated valuable resources to empower our customers, including our comprehensive Snow Guard Buyer's Guide and the insightful "What Works and Doesn't" page. These resources will equip you with the information to make informed decisions and ensure a seamless installation process.