Snow Guard Solutions for Marco Metals’ Exposed-Fastener Roof Panels

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

Snow Guard Solutions for Marco Metals' Exposed-Fastener Roof Panels

What snow retention options work best with Marco Metals' exposed-fastener roofing systems?

Exposed-fastener metal roofs are particularly prone to sudden snow and ice slides during winter months, a phenomenon often referred to as rooftop avalanches.

Because these panels have a slick surface, snow and ice can accumulate and then release abruptly, creating hazards for people, pets, and property below. To reduce these risks, we offer snow retention products engineered to suit a wide range of roof types and materials. Our snow guards and rail systems can accommodate a wide range of panel profiles, roof slopes, and local weather conditions. We also provide helpful tools, including our blog posts, installation guides, and updated compatibility charts for top roofing brands. In regions with frequent or heavy snowfall, these systems are critical for controlling the timing and manner of snow and ice shedding from roofs.

About Marco Metals and Their Exposed-Fastener Roofing

Headquartered in Harrisonburg, Virginia, Marco Metals LLC is a family-owned company that manufactures and distributes metal roofing and post-frame construction materials. They serve contractors, builders, and property owners throughout the mid-Atlantic. Leveraging advanced roll-forming equipment, Marco Metals produces a wide array of metal panels and siding. Their product lineup includes standing seam systems, exposed-fastener panels, and complete post-frame kits with trim, fasteners, closures, and accessories. Customers can select from a broad palette of standard and premium color finishes designed for energy efficiency and long-term color retention in tough climates.

Tuff Rib Panel

Tuff Rib stands out as Marco Metals' most widely used panel, favored for its flexibility, cost-effectiveness, and straightforward installation. Contractors commonly install it on barns, sheds, garages, and even residential homes. The panel delivers 36 inches of coverage after overlap and is available in a standard 29-gauge or an optional 26-gauge thickness. This panel includes ¾-inch ribs spaced 9 inches apart, and installers secure it with exposed fasteners and 24-inch purlin spacing. These characteristics make it a dependable option for projects that require both durability and simplicity. See the Snow Guards Compatibility Chart for Marco Metals Tuff Rib Screw Down Metal Roofing Panels.

This panel supports a broad selection of snow retention products, offering flexibility in both materials and installation methods. Polycarbonate models like the SnoBlox Deuce and SnowBreaker fit between the panel's minor ribs. Metal options, including the screw-fastened SnoCleat PBR and our various SnowCatcher designs, should be installed on the flat center portion of the panel for optimal performance. Other models, such as the Snojax I and Icejax I, are designed to span across the minor ribs. The Icejax I can be installed with either adhesive or screws, while the Snojax I requires mechanical fasteners. This panel is also compatible with Tall ColorBrackets and the necessary hardware for aluminum ColorBar PBR or galvanized SnoBar PBR rail systems, making it a versatile choice for snow control in a range of climates.

5V Crimp Panel

Builders often choose the 5V Crimp panel for smaller buildings such as sheds, barns, and storage units, as well as for decorative or accent roofing on homes. Marco Metals advises against using this panel on large roof surfaces due to the potential for oil canning. It provides 24 inches of coverage after overlap and is available in 29-gauge standard or 26-gauge optional thickness. With ½-inch ribs spaced 6 inches apart and exposed fasteners, it's best installed over solid sheathing rather than open purlins, even though it lists a 24-inch purlin spacing. See the Snow Guards Compatibility Chart for Marco Metals 5V Crimp Screw Down Metal Roofing Panels.

This panel accommodates a wide variety of snow guard styles to meet different aesthetic and functional needs. It works well with individual pad-style guards, including stainless steel SnowCatchers in designs like Standard, Sun Burst, Maple Leaf, Fleur-de-lis, Kodiak, and Mustang. Polycarbonate options such as the SnoBlox Deuce, Icejax II, and SnoBlox Ace use either adhesive or screws. The Snojax I, however, must be mechanically fastened and should not be adhered. For those looking to break snow and ice into smaller, safer chunks as it slides off, the SnowBreaker and SnowBreaker 3M offer effective solutions. In areas with snow loads exceeding 45 psf or for those seeking a modern aesthetic, the SnoBar and ColorBar rail systems provide robust performance. These systems use Tall ColorBrackets with butyl tape gaskets for a secure and visually appealing installation.

PBR Panel

Marco Metals designed the Purlin-Bearing Rib (PBR) panels for demanding commercial and industrial environments that require strength and load-bearing capacity. These panels offer 36 inches of coverage after overlap, are manufactured from 26-gauge steel, and support purlin spacing up to 48 inches. With 1¼-inch ribs spaced 12 inches apart and exposed fasteners, PBR panels are ideal for large-scale structures like warehouses and factories due to their ability to span greater distances and support heavier loads. See the Snow Guards Compatibility Chart for Marco Metals PBR Screw Down Metal Roofing Panels.

PBR panels are highly adaptable for snow guard installation, supporting a wide range of systems. Compatible options include screw-down snow rails like SnoBar and ColorBar, as well as the SnoCleat PBR and stainless steel SnowCatchers in various styles such as Standard, Fleur-de-lis, Sun Burst, Maple Leaf, Mustang, and Kodiak. Installers can mount most polycarbonate snow guards using adhesive or screws, but they must mechanically fasten the Snojax I. We recommend using Surebond SB-190 adhesive for polycarbonate models, but not for metal pad-style guards. Installers achieve the best results by centering smaller snow guards between the minor ribs and aligning them consistently across the roof. Some models, like the Snojax II and Icejax II, require offset installation by straddling either the left or right minor rib, maintaining uniform placement throughout. Avoid mounting snow guards or rails on the high ribs; instead, secure them through the flat, low sections of the panel into a solid substrate to ensure long-term stability.

Corrugated Panel

Marco Metals offers a classic corrugated panel that blends timeless aesthetics with durable performance, ideal for both rustic and modern applications. Crafted from 29-gauge steel, these panels feature a traditional wavy profile that evokes the charm of old barns and agricultural buildings. Each panel provides 24 inches of coverage after overlap, making it a practical choice for roofing and siding projects where visual texture and weather resistance are key. This panel features ribs on 2-2/3 inches on-center and ½-inch high. The panels are available in 12-foot stock lengths in galvalume, with custom lengths and colors offered to suit a variety of design needs. Whether you're aiming for a vintage look or a rugged, industrial finish, Marco’s corrugated panels deliver reliable coverage with a distinctive visual rhythm. See the Snow Guards Compatibility Chart for Marco Metals Corrugated Screw Down Metal Roofing Panels.

This roofing panel stands out with its distinctive wavy corrugated profile, setting it apart from conventional exposed fastener systems. Its raised rib configuration allows snow guards to be installed directly on the elevated sections, an uncommon approach compared to typical roofing methods. For those seeking reliable snow retention, the panel supports multiple solutions. One popular choice is the SnoCleat 2.67, which mounts securely to the ribs using 3-inch fasteners. Alternatively, customers can opt for the SnoBar or ColorBar systems, both of which connect using the ColorBracket 2.67, the same bracket used with the SnoCleat. Each ColorBracket includes six mounting holes to enhance structural integrity. While four screws suffice for standard applications, using all six is recommended in regions prone to harsh weather, providing added durability and peace of mind.

Marco Metals Compatibility Chart for Snow Guards

	Tuff Rib Panel	5V Crimp Panel	PBR Panel	Corrugated Panel
Ecojax	YES	YES	YES	NO
IceJax I	YES	YES	YES	NO
IceJax II	NO	YES	YES	NO
SnoBlox Deuce	YES	YES	YES	NO
Ace	NO	YES	YES	NO
Snojax I	NO	YES	YES	NO
Snojax II	NO	YES	YES	NO
SnowBreaker	YES	YES	YES	NO
SnowCatcher	YES	YES	YES	NO
SnoBar PBR	YES	YES	YES	NO
ColorBar PBR	YES	YES	YES	NO
SnoCleat PBR	YES	YES	YES	NO
SnoCleat 2.67	NO	YES	NO	YES
SnoBar 2.67	NO	NO	NO	YES
ColorBar 2.67	NO	NO	NO	YES

Considerations for Adding Snow Guards to Exposed Fastener Roofs by Marco Metals

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

Adhesive-mounted snow guards cure most effectively in warmer weather, ideally from late spring to early summer when temperatures are above 50°F. Warm conditions accelerate bonding, while cold conditions can hinder the process. Products like SureBond SB-190 typically become moisture-resistant within 24 hours, helping avoid delays due to weather.

How Can I Fasten Snow Guards for Maximum Strength?

To maximize holding power, attach snow guards directly to structural elements, such as purlins or rafters, rather than only to the roof panels. Reinforcing the mounting area or using a combination of screws and adhesive can boost load capacity and improve long-term performance.

Should I Apply Sealant Under Screw-Mounted Snow Guards?

Applying a generous bead of sealant beneath screw-attached polycarbonate snow guards helps seal gaps, reduce water intrusion, and prevent future leaks. This extra step enhances the installation's integrity and durability.

Should I Test Fit Snow Guards Before Final Installation?

Pre-positioning snow guards before installation allows you to confirm spacing and alignment. This trial layout helps fine-tune placement and ensures a clean, professional-looking result once installed.

How Does Roofing Material Affect Snow Guard Placement?

The type of roofing material plays a key role in determining snow guard spacing and layout. Softer metals like copper or aluminum may need tighter spacing and multiple rows. At the same time, harder surfaces like steel can accommodate wider gaps. Always verify that adhesives and sealants are compatible with the roof to avoid bonding issues.

What Snow Guard Solutions Work Best for Unique Roof Shapes?

Roofs with unusual shapes, such as curved or arched profiles, often require tailored snow guard solutions. Standard models may not fit properly, so it's best to choose guards designed for the roof's specific contours and consult the manufacturer for guidance.

How Can I Coordinate Snow Guard Finishes with My Roof Design?

Select finishes that align with your roof's color palette and architectural style. Options like powder coating or custom inserts can enhance visual appeal and help the guards blend seamlessly with the roof. Professional coatings offer lasting durability, while DIY methods may provide quicker, budget-friendly results.

Conclusion

At SnoBlox-Snojax, our snow guard systems are engineered for durability and long-term performance, not just temporary solutions. We take pride in offering transparent communication and hands-on customer support, which has helped us earn the trust of clients nationwide. From the start of your project to the final installation, we provide clear product details, easy-to-follow installation guides, and responsive service. Resources like our comprehensive Snow Guard Buyer's Guide and best practices guide empower customers to select the best fit for their roofing needs confidently. Whether you contact us by phone or email, our knowledgeable team is always ready to provide tailored advice and assist with any order-related concerns. From choosing the right product to ensuring proper upkeep, we strive to make snow retention straightforward, effective, and supported by expert guidance at every stage.

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.