Snow Guards Compatible with Flatiron Steel Exposed-Fastener Panels

Which Snow Guards Work Best with Flatiron Steel’s Exposed-Fastener Panels?

Exposed-fastener metal roofs often release snow and ice suddenly when temperatures shift.

Their smooth surface creates very little friction, causing snow to slide off in large sheets instead of melting gradually. This rapid movement, often called a roof avalanche, can create hazards for people, pets, vehicles, and anything near the eaves. To help reduce these risks, we offer snow-management systems designed for a wide range of panel profiles and snow-load conditions. Installers can choose from individual pad-style guards or continuous rail systems that spread holding strength across the roof. We also provide extensive educational resources, including installation guides, compatibility tools, manufacturer-specific charts, and blog content to support proper product selection. Whether a building resides in a mild climate or an area with harsh winters, controlling snow movement is essential for protecting both the roof and the surrounding property.

About Flatiron Steel

Flatiron Steel is a family-owned metal roofing manufacturer built on decades of hands-on experience and a commitment to American-made quality. The company’s history begins with founder Lee Smith, who learned the trade while working with his father at Teton Steel in Idaho Falls. Those early lessons in craftsmanship, service, and integrity shaped the foundation of the business he launched in 2006 in La Salle, Colorado. Today, Flatiron Steel operates showrooms in Greeley and Colorado Springs, giving customers a direct look at the company’s products and service approach. Long-standing vendor partnerships reinforce its reputation for reliability, communication, and consistent product quality. Even as the company grows, it continues to uphold its belief that hard work, attention to detail, and a balanced work ethic are essential to delivering exceptional results on every order.

3 Foot Tuf Rib Metal Roofing Panels

Flatiron Steel’s 3 Foot Tuf Rib panel is an economical, versatile option for residential, agricultural, and light-commercial projects. It provides 36 inches of coverage with ¼-inch-high ribs spaced 9 inches apart. It is available in 29-gauge or 26-gauge steel with painted or bare Galvalume finishes. The panel is designed for through-fastened installation and supports roof slopes of 3:12 or greater.

This panel works with a wide range of our snow-retention products. Polycarbonate guards such as the SnoBlox Deuce, EcoJax, and SnowBreaker fit between the minor ribs, while metal options like the SnoCleat PBR and all SnowCatcher styles mount on the flat center area. These guards span the minor ribs and can be installed with adhesive or screws, though the Snojax I requires mechanical fastening. The panel also pairs well with Tall ColorBrackets, which support the ColorBar PBR and SnoBar PBR rail systems. This broad compatibility makes the Tuf Rib panel a dependable choice for managing snow in many climates.

PBR Metal Roofing Panels

The PBR panel is a structural, commercial-grade profile designed for long spans and demanding applications. It provides 36 inches of coverage with ribs spaced 12 inches on center and a rib height of 1.25 inches, giving it strong load-carrying capability. It is available in 24-gauge and 26-gauge steel with SMP or PVDF finishes, depending on the gauge. This panel comes in lengths from 3 to 50 feet and supports slopes down to 3:12, or as low as 0.5:12 when installed with bead seal and stitch screws. Its siphon-groove design improves performance on low-slope roofs.

This profile supports a wide selection of our snow-retention systems. Stainless steel SnowCatcher guards, including Standard, Sun Burst, Maple Leaf, Fleur-de-lis, Kodiak, and Mustang, can be securely fastened to the panel. Polycarbonate options such as the SnoBlox Deuce, IceJax II, and SnoBlox Ace may be installed with adhesive or screws, while the Snojax I must be mechanically attached. For snow-breaking applications, the SnowBreaker and SnowBreaker 3M help disperse sliding snow into smaller pieces. In regions with snow loads above 45 PSF or when a customer desires a cleaner appearance, rail systems such as SnoBar and ColorBar provide strong, continuous protection. These systems use Tall ColorBrackets with butyl tape gaskets for proper sealing. Because the panel has a textured finish, installers may need a thicker adhesive or sealant layer to achieve a solid bond.

7/8 Inch Corrugated Metal Roofing Panels

The 7/8 inch Corrugated panel features a classic high-profile wave pattern with a rib height of 7/8 inch, making it suitable for roofing and siding in rustic, architectural, or modern designs. It comes in 24-gauge steel, with 26-gauge and 22-gauge options available by request. Manufacturers can produce it from specialty metals such as Core-Ten, Bonderized steel, and copper. When using bead seal and stitch screws, contractors can install this panel on slopes as low as 1:12.

Because of its curved profile, snow guards must attach to the high ribs rather than the flats. The SnoCleat 2.67 mounts using 3-inch screws, while the SnoBar and ColorBar rail systems pair with the ColorBracket 2.67. This bracket includes six screw holes for added strength, though four fasteners typically provide sufficient holding power. In areas with heavy snowfall or severe weather, using all six screws ensures maximum durability and long-term performance.

7.2 Ultra Box Metal Roofing Panels

The 7.2 Ultra Box panel features a deep, structural box-rib design with ribs spaced 7.2 inches apart with a rib height of 1-1/2 inches. Contractors use the profile for roofing, siding, wainscoting, and architectural wall systems. It comes in 24-gauge steel, with 26-gauge and 22-gauge options available by special order. It is available in painted finishes, Galvalume, Core-Ten, or copper. When using bead seal and stitch screws, the panel supports roof slopes down to 1:12. It can be installed vertically or horizontally, depending on the desired look.

This panel works with several of our snow-management solutions. The polycarbonate SnoBlox Deuce provides traditional snow-holding capability. At the same time, the SnowBreaker helps fracture sliding snow and ice into smaller, safer pieces. You can install these guards with screws or adhesive, and the SnowBreaker 3M with 3M double-sided tape. The panel is also compatible with SnoBar and ColorBar rail systems, which use the 1.5-inch-wide aluminum Tall ColorBracket for secure attachment. Together, these options offer reliable snow-control performance across a range of climates and roof designs.

Flatiron Steel Compatibility Chart for Exposed-Fastener Snow Guards

	3 Foot Tuf Rib Panel	PBR Panel	7/8 Inch Corrugated Panel	7.2 Ultra Box Panel
Ecojax	YES	YES	NO	YES
IceJax I	YES	YES	NO	NO
IceJax II	NO	YES	NO	NO
SnoBlox Deuce	YES	YES	NO	YES
Ace	NO	YES	NO	NO
Snojax I	NO	YES	NO	NO
Snojax II	NO	YES	NO	NO
SnowBreaker	YES	YES	NO	YES
SnowCatcher	YES	YES	NO	NO
SnoBar PBR	YES	YES	NO	YES
ColorBar PBR	YES	YES	NO	YES
SnoCleat PBR	YES	YES	NO	NO
SnoCleat 2.67	NO	NO	YES	NO
SnoBar 2.67	NO	NO	YES	NO
ColorBar 2.67	NO	NO	YES	NO

Considerations for Adding Snow Guards to Exposed Fastener Roofs by Flatiron Steel

How Can I Fasten Snow Guards for Maximum Strength?

For the most secure installation, attach snow guards directly to structural framing, such as purlins or rafters, rather than relying solely on the roof panels. Tying into these components boosts load capacity and improves long-term holding strength.

Should I Test Fit Snow Guards Before Final Installation?

Setting the guards in place temporarily allows you to verify spacing, alignment, and the overall pattern before fastening anything down. This quick check helps ensure a consistent layout and a clean, professional final appearance.

When Is the Best Time to Install Adhesive-Mounted Snow Guards?

Adhesive-mounted guards achieve their best bond in warm conditions, typically late spring through early summer when temperatures remain above 50°F. Heat supports faster curing, and adhesives like SureBond SB-190 generally reach moisture resistance in roughly a day.

What Snow Guard Solutions Work Best for Unique Roof Shapes?

Roofs with curves, arches, or other unusual geometries often require guards that are chosen or shaped to match those contours. Standard units may not sit correctly, so custom-fit options and careful adherence to manufacturer guidelines are crucial for dependable performance.

Should I Use Sealant Under My Screw-Mounted Snow Guards?

A coating of sealant beneath screw-attached guards helps seal small gaps, reduce the risk of leaks, and prevent moisture from migrating into the roof assembly. This added protection contributes to long-term reliability.

How Can I Coordinate My Snow Guards with My Roof?

Selecting finishes that harmonize with the roof's color and surface texture helps the guards blend in visually. Powder-coated options offer a long-lasting appearance, while field-applied coatings provide an economical way to fine-tune the final look.

Conclusion

At SnoBlox-Snojax, long-lasting performance guides everything we produce. We engineer our snow guards and snow-retention systems to handle repeated freeze–thaw cycles, heavy snow loads, and harsh winter conditions without the premature failures often seen in lower-quality products. Customers across the country and around the world rely on our solutions not only for their durability but also for the personalized support that accompanies every order. From the earliest planning stages to the final installation, our team provides clear guidance, practical recommendations, and prompt assistance. Tools like our Snow Guard Buyer's Guide and comprehensive Best Practices manual help contractors and building owners choose systems suited to their roof profile and regional climate. Whether someone reaches out by phone or email, they receive quick answers to installation or purchasing questions. By simplifying the process and drawing on decades of experience, we help ensure every project results in a snow-retention system that performs reliably year after year.

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.