Snow Guard Solutions for California Steel Exposed-Fastener Roof Panels

See the Snow Guards Compatibility Chart for California Steel Exposed-Fastener Metal Roofing Panels.

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

Metal roofing systems that use exposed fasteners are vulnerable to sudden slides of snow and ice during the colder months.

These rapid releases, often called rooftop avalanches, can occur unexpectedly and pose serious safety hazards. Because the panels have a smooth, reflective surface, snow and ice tend to break loose in large sheets instead of melting gradually. This swift movement can put people, pets, and property at risk around the building. To reduce these dangers, we developed our specialized snow retention products for different roof styles and climates. Options include individual pad-style guards and continuous rail systems, both adaptable to varying slopes and panel designs. Installers and property owners can rely on our educational blog posts, detailed installation instructions, compatibility charts, and compatibility resources covering major roofing brands. Whether facing light winter dustings or heavy snow loads, these systems are critical for controlling how snow sheds from your roof.

About California Steel and Its Exposed-Fastener Panels

Founded in 1974, California Steel began with a mission to deliver roofing and siding solutions built for durability and long service life. The company initially focused on materials that could withstand California's diverse weather conditions, from coastal moisture to inland heat. Over time, their offerings expanded, but their dedication to quality craftsmanship and reliable service has remained unchanged. Today, California Steel is a leading provider of steel panels for residential, commercial, and agricultural applications. Their reputation for consistency has earned them loyal customers who return project after project. The company sets itself apart with customizable panel options engineered for strength and weather resistance. Contractors, builders, and homeowners can choose from a wide range of profiles, finishes, and trim systems. A standout feature is their interactive 3D panel designer, which lets customers preview colors, styles, and layouts before placing an order, ensuring the finished project aligns with the original vision. Beyond their products, California Steel emphasizes customer support, offering expert guidance, quick turnaround times, and clear communication, making their service as dependable as their panels.

HR-36

The HR-36 panel features a heavy-duty, exposed-fastener design built for demanding commercial, architectural, and industrial projects. Featuring a trapezoidal rib profile with a 1½-inch panel height, it delivers both strength and visual appeal. With a 36-inch coverage width, HR-36 is suitable for roofing, siding, and wainscoting applications. Available in 20, 22, 24, and 26 gauge thicknesses, HR-36 is compatible with roof slopes as low as 1:12. Hotels, retail spaces, industrial facilities, and robust fencing or gate systems are common uses for this panel. The panel is sustainable, long-lasting, and offered in a variety of energy-efficient colors and coatings. Designers often use HR-36 in both vertical and horizontal layouts to achieve unique architectural effects. Its profile includes evenly spaced ribs with narrow flats, measuring about 7 3/16" from center to center. See the Snow Guards Compatibility Chart for California Steel HR-36 Exposed-Fastener Metal Roofing Panels.

Because of these slim flats, we recommend narrower snow guard solutions. Pad-style guards such as SnoBlox Deuce and Ecojax (for retaining snow and ice) or SnowBreaker and SnowBreaker (for breaking snow into smaller, safer pieces) are well-suited. Unlike standing seam panels, exposed fastener panels like HR-36 can typically accommodate either screw-down or adhesive-mounted guards. For adhesive installations, Surebond SB-190 remains the industry standard. This panel also works with screw-down rail systems like ColorBar and SnoBar when paired with Tall ColorBrackets. Installers should avoid fastening guards or rails to the high ribs; proper installation requires anchoring through the low flats into solid structural support.

Strata Rib

The Strata Rib panel is a reliable exposed fastener option for roofing and siding, combining strength, durability, and aesthetic appeal. It spans 36 inches and features ¾-inch-tall major ribs spaced at 9-inch intervals. The Manufacturer produces Strata Rib in 29- or 26-gauge steel, and builders commonly use it in residential, light commercial, and agricultural projects. See the Snow Guards Compatibility Chart for California Steel Strata Rib Exposed-Fastener Metal Roofing Panels.

Snow retention solutions for this profile include polycarbonate guards such as SnoBlox Deuce and SnowBreaker, which fit neatly between the minor ribs. Metal alternatives, such as SnoCleat PBR and decorative SnowCatchers, can be installed in the flat center section to add both functionality and visual interest. The Snojax I attaches with screws, while the Icejax I offers flexibility with either adhesive or mechanical fastening. For larger projects and those with ground snow loads above 45 psf, rail-style systems supported by Tall ColorBrackets and proper fasteners can accommodate ColorBar PBR or SnoBar PBR, ensuring reliable snow management across diverse climates.

7/8-Inch Corrugated

The 7/8-inch Corrugated panel features a traditional exposed-fastener design used for both roofing and siding. With its distinctive ribbed profile and 7/8-inch height, it is available in 22, 24, and 26-gauge steel. This panel is popular for modern residential siding, durable commercial wainscoting, and cost-effective roofing solutions. See the Snow Guards Compatibility Chart for California Steel 7/8-Inch Corrugated Exposed-Fastener Metal Roofing Panels.

Its wave-like corrugation sets it apart from standard exposed fastener panels. It allows snow guards to be mounted directly on the high ribs. Contractors install the SnoCleat 2.67 with 3-inch screws, and they pair the SnoBar and ColorBar systems with the ColorBracket 2.67. The bracket has six screw holes to enhance stability, but four fasteners are typically sufficient to secure it adequately. In regions with heavy snowfall or severe weather, contractors should use all six screws to ensure maximum strength and long-term performance.

Delta Rib III

The Delta Rib III panel is a versatile exposed-fastener option for roofing and siding applications. Offering a 36-inch coverage width with 11/16-inch-high ribs spaced 9 inches apart, it is available in 29 and 26-gauge steel. Delta Rib III is widely used in residential, agricultural, and commercial projects thanks to its balance of strength and affordability. A minimum 3:12 slope is required. See the Snow Guards Compatibility Chart for California Steel Delta Rib III Exposed-Fastener Metal Roofing Panels.

Snow retention systems for this profile include polycarbonate guards like SnoBlox Deuce and SnowBreaker, which fit between minor ribs for a clean installation. Metal options such as SnoCleat PBR and decorative SnowCatchers can be mounted in the flat center section, combining durability with style. Contractors install the Snojax I as a screw-down guard, while they secure the Icejax I with either screws or adhesive. For rail-style protection, Tall ColorBrackets with compatible hardware support ColorBar PBR or SnoBar PBR, providing dependable snow control in varying weather conditions.

Delta Rib

The Delta Rib panel is a lightweight, exposed-fastener design suitable for residential, agricultural, retail, and civic projects. It offers a 36-inch coverage width with major ribs 1-1/4 inch tall on 12-inch spacing. This panel is available in 29 or 26-gauge steel, making it adaptable for a wide range of applications. A minimum 3:12 slope is required. See the Snow Guards Compatibility Chart for California Steel Delta Rib Exposed-Fastener Metal Roofing Panels.

This profile is broadly compatible with our snow guards. Common solutions include SnoBar, ColorBar, SnoCleat PBR, and stainless steel SnowCatchers for decorative appeal. Most of our polycarbonate guards can be installed with screws or adhesive, though the Snojax I requires mechanical fastening only. When using adhesive, we recommend Surebond SB-190. Never glue metal pad-style guards onto the roof. Place smaller guards between minor ribs. At the same time, straddle-style models such as Snojax II and Icejax II fit over them. For lasting performance, anchor all guards and rails through the flat sections into solid structural support rather than mounting them on the high ribs.

2½-Inch Corrugated

The 2½-inch Corrugated panel is a lightweight, exposed-fastener design with a subtle ribbed profile. Builders often choose this panel, which features a ½-inch rib height with major ribs spaced 2-1/2 inches apart, for residential siding, wainscoting, and rural buildings. Its appearance blends well with both modern and rustic architectural styles. See the Snow Guards Compatibility Chart for California Steel 2½-Inch Corrugated Exposed-Fastener Metal Roofing Panels.

Due to its unique dimensions, this panel is not compatible with any snow guard system in our current product line.

PBR Panel

The PBR Panel is a versatile, high-strength option for pre-engineered buildings, post-frame construction, and agricultural projects. Recognized for its durability and dependability, it delivers long-term protection with minimal upkeep. Designed with sustainability in mind, the PBR panels are offered in 26 and 24-gauge steel, making them suitable for light commercial, industrial, and even do-it-yourself applications. This panel features 1-1/4-inch-tall ribs spaced 12 inches apart. See the Snow Guards Compatibility Chart for California Steel PBR Exposed-Fastener Metal Roofing Panels.

This profile is compatible with a broad selection of snow retention systems. Contractors can select rail-style solutions such as SnoBar or ColorBar, pad-style options like SnoCleat PBR, or decorative stainless steel SnowCatchers. Polycarbonate guards may be installed using screws or adhesive, except for Snojax I, which requires mechanical fastening only. When using adhesive, we recommend Surebond SB-190. However, it is critical not to glue metal pad-style guards to the roof. Smaller guard designs fit between minor ribs. At the same time, straddle-style models such as Snojax II and Icejax II span across them. For lasting performance, all guards and rail systems must be anchored through the flat center sections into solid structural support, rather than mounted on the high ribs.

California Steel Compatibility Chart for Snow Guards

	HR-36 Panel	Strata Rib Panel	7/8-Inch Corrugated Panel	Delta Rib III Panel	Delta Rib Panel	2-1/2 Inch Corrugated Panel	PBR Panel
Ecojax	YES	YES	NO	YES	YES	NO	YES
IceJax I	NO	YES	NO	YES	YES	NO	YES
IceJax II	NO	NO	NO	NO	YES	NO	YES
SnoBlox Deuce	YES	YES	NO	YES	YES	NO	YES
Ace	NO	NO	NO	NO	YES	NO	YES
Snojax I	NO	NO	NO	NO	YES	NO	YES
Snojax II	NO	NO	NO	NO	YES	NO	YES
SnowBreaker	YES	YES	NO	YES	YES	NO	YES
SnowCatcher	NO	YES	NO	YES	YES	NO	YES
SnoBar PBR	YES	YES	NO	YES	YES	NO	YES
ColorBar PBR	YES	YES	NO	YES	YES	NO	YES
SnoCleat PBR	NO	YES	NO	YES	YES	NO	YES
SnoCleat 2.67	NO	NO	YES	NO	NO	NO	NO
SnoBar 2.67	NO	NO	YES	NO	NO	NO	NO
ColorBar 2.67	NO	NO	YES	NO	NO	NO	NO

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

How Can I Coordinate My Snow Guards with My Roof?

Select finishes that match the roof’s style and color palette. Powder-coated options improve aesthetics and allow the guards to blend naturally. Professional coatings deliver lasting durability, while DIY finishes can provide faster, cost-conscious customization.

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

Placing sealant beneath screw-fastened guards helps seal gaps, prevent leaks, and reduce water infiltration. This added measure reinforces the installation and promotes reliable, long-term performance.

What Snow Guard Solutions Work Best for Unique Roof Shapes?

Architectural designs, such as curved or arched roofs, often require custom snow guard systems. Standard units may not fit correctly, so contractors typically rely on specialized models shaped to the roof's contour and seek manufacturer guidance.

How Does Roofing Material Affect Snow Guard Placement?

Roofing type influences spacing and layout requirements. Softer metals like aluminum or copper often need tighter spacing and multiple rows. At the same time, stronger materials such as steel allow for wider intervals. Always confirm adhesives and sealants are compatible with the roof surface to avoid bonding or corrosion issues.

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

Adhesive-mounted guards perform best in warm weather, usually late spring or early summer, when temperatures exceed 50°F. Heat speeds curing, while cold slows adhesion. Products like SureBond SB-190 typically resist moisture within a day, minimizing weather delays.

Should I Test Fit Snow Guards Before Final Installation?

A trial placement before fastening ensures proper alignment and spacing. This step helps achieve a precise, orderly layout and a professional-looking finished result.

How Can I Fasten Snow Guards for Maximum Strength?

For maximum durability, secure snow guards directly to structural elements, such as rafters or purlins, rather than relying solely on roof panels. Reinforcing these points increases load capacity and ensures long-term stability.

Conclusion

At SnoBlox-Snojax, every snow retention system is engineered for durability and long-term performance, built to withstand real-world conditions rather than serving as a short-term solution. Our company places a strong emphasis on clear communication and personalized support, cultivating lasting relationships with customers throughout the United States and internationally. From the earliest planning stages through final installation, we provide detailed product expertise, straightforward instructions, and responsive assistance. Resources such as the Snow Guard Buyer's Guide and step-by-step installation manuals make it easy for property owners to select the right system based on roof type and regional snow loads. Whether reaching out by phone or email, customers can expect tailored recommendations, guidance on product selection, and prompt answers to installation or order-related questions. By simplifying the process and providing reliable support, SnoBlox-Snojax ensures that every customer has an effective snow retention solution.

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.