Snow Guard Options for Spirco’s Exposed-Fastener Metal Panels

See the Snow Guards Compatibility Chart for Spirco Screw Down Metal Roofing Panels.

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

Exposed-fastener metal roofs can shed snow and ice very quickly when temperatures rise or conditions shift.

Because the panels have a smooth surface, snow has little friction to hold it in place, so large sections slide off rather than melting slowly. This rapid movement, often described as a roof avalanche, can pose hazards to people, pets, vehicles, and anything near the roof perimeter. To help reduce these risks, we offer snow retention systems that fit a variety of panel profiles and regional snow loads. Installers can choose from individual pad-style guards or continuous rail systems that distribute holding strength across the roof. We also offer extensive educational materials, including installation instructions, compatibility charts, manufacturer-specific guidance, and detailed blog articles to support proper product selection. Whether the building is located in a light-snow region or an area with severe winter conditions, controlling how snow releases from the roof is an important part of protecting the structure and surrounding property.

About Spirco

Spirco Manufacturing is a United States-based producer of metal building components known for strong, durable steel systems used in commercial and industrial applications. The company focuses on structural integrity and long-term performance, engineering its roofing products to withstand demanding environments. Its roof panels are designed for weather resistance, longevity, and a clean architectural appearance, making them a reliable option for contractors and building owners.

High Rib (PBR) Profile Panel

The PBR panel, also known as the Purlin Bearing Rib panel, is a rugged through-fastened metal panel from Spirco Manufacturing that works well for roofing and wall applications in agricultural, commercial, and industrial settings. It provides 36 inches of coverage and features ribs that are 1 and 1/4 inches tall, spaced 12 inches apart, with additional minor ribs that increase rigidity and overall strength. Unlike a standard R panel, the PBR design includes a purlin-bearing leg at the sidelap, allowing the panel to rest directly on the framing. This feature improves load transfer and enhances structural performance, especially on projects that require longer spans. The panel is cost-effective and straightforward to install, although its exposed fasteners require periodic maintenance. It performs best on roof slopes of 1:12 or greater. See the Snow Guards Compatibility Chart for Spirco High Rib (PBR) Screw Down Metal Roofing Panels.

This profile works with a wide range of our snow retention products, giving installers flexibility to match the system to the project’s climate and performance requirements. Stainless steel SnowCatcher snow guards, including the Standard, Sun Burst, Maple Leaf, Fleur de lis, Kodiak, and Mustang designs, can be mechanically fastened to the panel. Polycarbonate models such as the SnoBlox Deuce, IceJax II, and SnoBlox Ace can be installed with adhesive or screws, while the Snojax I must be mechanically fastened and cannot be adhered. For applications where breaking up sliding snow is preferred, the SnowBreaker and SnowBreaker 3M help disperse movement into smaller, less dangerous pieces. Rail systems such as SnoBar and ColorBar offer strong, continuous protection for areas with snow loads above 45 PSF. These systems use Tall ColorBrackets with butyl tape gaskets to ensure proper sealing. Because the panel has a textured finish, installers may need to apply a thicker layer of adhesive or sealant to achieve a dependable bond.

Spirco Compatibility Chart for Exposed-Fastener Snow Guards

	High Rib PBR Panel
EcoJax	YES
IceJax I	YES
IceJax II	YES
SnoBlox Deuce	YES
SnoBlox Ace	YES
Snojax I	YES
SnoJax II	YES
SnowBreaker	YES
SnowCatcher	YES
SnoBar PBR	YES
ColorBar PBR	YES
SnoCleat PBR	YES
SnoCleat 2.67	NO
SnoBar 2.67	NO
ColorBar 2.67	NO

Considerations for Adding Snow Guards to Exposed Fastener Roofs by Spirco

What Snow Guard Solutions Work Best for Unique Roof Shapes?

Roofs with curves, arches, or other unusual contours often require guards that are selected or shaped to match those surfaces. Standard models may not sit properly, so custom options and strict adherence to manufacturer instructions are essential for dependable performance.

Should I Test Fit Snow Guards Before Final Installation?

Setting the guards in place temporarily lets you confirm spacing, alignment, and the overall layout before fastening them for good. This simple check helps ensure a uniform pattern and a clean, professional result.

How Can I Coordinate My Snow Guards with My Roof?

Choosing finishes that match the roof's color and texture helps the guards blend naturally with the structure. Powder-coated finishes provide long-lasting color, while field-applied coatings offer a cost-effective way to fine-tune the appearance.

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

Adhesive-mounted guards bond best in warm weather, typically from late spring into early summer when temperatures stay above 50°F. Warmer conditions speed up curing, and products like SureBond SB-190 usually become moisture resistant within about a day.

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

Applying sealant beneath screw-mounted guards helps seal small gaps, reduce the risk of leaks, and prevent moisture from entering the roof assembly. This added layer improves overall reliability over time.

How Can I Fasten Snow Guards for Maximum Strength?

For the strongest hold, attach snow guards directly into structural framing, such as rafters or purlins, rather than relying only on the roof panels. Securing them to these components increases load capacity and long-term durability.

Conclusion

At SnoBlox-Snojax, long-term performance is the foundation of everything we build. Our snow guards and snow retention systems withstand repeated freeze-thaw cycles, significant snow loads, and demanding winter conditions without the early failures common in lower-quality products. Customers throughout the United States and in many other regions depend on our solutions not only for their durability but also for the personalized support that comes with every order. From the first planning conversation through the final installation steps, our team provides clear guidance, practical recommendations, and timely assistance. Resources such as our Snow Guard Buyer's Guide and detailed Best Practices manual help contractors and building owners select systems that fit their roof profile and local climate. Whether someone contacts us by phone or email, they receive fast answers to installation or purchasing questions. By streamlining the process and applying decades of experience, we help ensure that each 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.

Compatibility Guidance Note

The compatibility information presented in this guide is based on SnoBlox-Snojax product testing and field experience with Spirco metal roof panel profiles. Panel manufacturers periodically update profile specifications, and individual project variables including seam condition, coating type, and installation method can affect outcomes. Customers are encouraged to confirm current panel specifications directly with Spirco and to contact SnoBlox-Snojax with project-specific questions before ordering.