Snow Guards for Peterson Aluminum Corp. (PAC-CLAD) Standing Seam Concealed Fastener Metal Roofs

Selecting snow guards is paramount when protecting your home or building with a hidden-fastener standing seam metal roof. The unique profiles of different metal roof panels require specialized snow guard solutions to manage the accumulation of snow and ice effectively. In this article, we'll explore the diverse range of snow guard options available for PAC-CLAD's standing seam metal roofs, guiding you toward the optimal choice for your roof system. This blog series aims to highlight prominent metal panel manufacturers and recommend compatible snow guard solutions, empowering customers to navigate this process confidently. We strive to furnish you with authoritative perspectives that empower you to choose the appropriate snow retention devices for your metal roof setup, shielding your investment and guaranteeing the security of your real estate.

Snow Guards for (PAC-CLAD) Standing Seam Concealed Fastener Metal Roofs

Petersen Aluminum Corporation, or PAC-CLAD, is a prominent manufacturer of high-quality architectural metal wall panels, metal roofing systems, and complementary accessories. Founded in 1965 by Maurice R. Petersen, the company has firmly established itself as an industry trailblazer, with strategically positioned production facilities across the United States. PAC-CLAD's comprehensive product range encompasses a diverse selection of options, including standing seam roofing panels, wall and roof panels with exposed or concealed fasteners, flush panels, soffit panels, perforated metal, coping and composite panels, fascia systems, coil, flat sheets, and column covers. In 2018, Carlisle Companies Inc., a global leader in commercial and industrial building envelope products, acquired Petersen Aluminum Corp. as part of its strategic initiative to expand its portfolio of innovative solutions for the building envelope market.

Snap-Clad Metal Roofing Panels

Snap-Clad metal roofing panels are popular for architectural and structural roofing projects. These panels are produced in continuous lengths and leveled to ensure superior flatness, allowing for easier on-site installation and workability. The panels feature a concealed-fastener clip system, providing exceptional hold-down strength while accommodating thermal expansion and contraction. An optional factory-applied sealant bead further enhances the weather resistance of the panels. One of the critical advantages of Snap-Clad panels is their versatility. They are available in lengths ranging from 4 to 64 feet, with a 1-3/4 inch leg height and a continuous interlock design that delivers excellent structural performance and wind resistance. These panels require installation over solid decking, such as plywood or nailboard insulation, with a minimum roof pitch of 2:12.

This panel offers a variety of snow retention options due to its diverse panel widths and seam shape. It is well-suited for glue-down polycarbonate snow guards. Still, proper adhesive application is crucial to prevent moisture from seeping underneath and causing issues like re-freezing and detachment. Customers have a range of larger snow guard choices, including the IceJax II, Snojax II, and SnoBlox Ace, as well as smaller options like the Deuce and IceJax I. For safer snow and ice shedding, use The SnowBreaker and SnowBreaker 3M. The panel's rib shape allows compatibility with all clamp-on snow guards, such as SnoCleat RC, SnoCleat RCT, SnoBar, and ColorBar rail systems, using either standard SnoBar clamps or aluminum RoofClamp attachment options. It's important to note that when using softer materials like aluminum, more rows of rails may be necessary to account for the difference in panel strength.

Tite-Loc Metal Roofing Panels

PAC-CLAD designed the Tite-Loc metal roofing panel for low-slope roofing applications. These panels combine structural performance with an attractive aesthetic, featuring a factory-leveled design for superior flatness. They can be produced in steel or aluminum and come with a concealed-fastener floating clip system to accommodate thermal expansion and contraction. Tite-Loc panels are field-seamed to a 90-degree lock, requiring mechanical seamers for installation. The panels can be used on roof slopes as low as 1/2:12 pitch with various suitable substrates. To maintain the finish warranty, you must use aluminum panels with stainless steel clips for coastal applications. These versatile metal roofing systems provide high performance and a sleek architectural appearance for low-slope projects. The manufacturer can curve these panels with a minimum radius requirement of 20 feet. They can curve the panels either at the factory or in the field.

This panel offers diverse snow retention solutions due to its multiple panel widths and seam shape. It is well-suited for glue-down polycarbonate snow guards. Still, proper adhesive application is crucial to prevent moisture from seeping into gaps underneath the snow guard, causing issues like re-freezing and detachment. Customers can choose from larger snow guard options, such as the IceJax II, Snojax II, and SnoBlox Ace, or smaller alternatives, like the Deuce and IceJax I. The SnowBreaker and SnowBreaker 3M products facilitate safer snow and ice shedding. The panel's rib shape allows compatibility with all clamp-on snow guards, including SnoCleat RC, SnoCleat RCT, SnoBar, and ColorBar systems, using either standard SnoBar clamps or RoofClamp attachment options. When using softer materials like aluminum, it may be necessary to install more rows of rails to account for the difference in panel strength. Pad-style snow guards are not recommended for curved roofs because they require a perfectly flat surface for proper installation. Snow rail systems are the correct product to use in these situations. If a clamp-on snow rail is not compatible with the seams on the panel when curved, don't hesitate to get in touch with the roofing manufacturer for their snow retention recommendations.

Tite-Loc Plus Metal Roofing Panels

Tite-Loc Plus metal roofing panels offer a high-performance solution that combines the structural capabilities of a standing seam panel with the aesthetic appeal of an architectural panel. These panels feature a 2-inch rib height that requires mechanical field seaming to 180 degrees, providing a robust and weather-resistant seal. The panels employ a concealed-fastener floating clip system to accommodate thermal expansion and contraction. This design helps preserve the panel's structural integrity over time. Tite-Loc Plus panels are available in multiple widths, gauges, and materials, including 12”, 16”, and 18" widths in 22 and 24-gauge steel or .032 and .040 aluminum. Galvalume Plus is available as well. PAC-CLAD can apply an optional factory-applied sealant bead for additional weather protection. To ensure superior flatness, the panels undergo a corrective leveling process. Tite-Loc Plus panels are suitable for use on roof slopes of 1/2:12 and above, meaning these panels can be effectively installed on roofs with a very shallow slope, making them a versatile option for various low-pitch roofing applications. They can be installed over multiple substrates, including plywood, metal decking, and rigid insulation when combined with bearing plates. These panels are certified for a Class A fire rating, Class 4 impact resistance, and a Class 90 UL-580 wind uplift rating, making them a durable and reliable choice for various schools, hospitals, and commercial and institutional buildings.

This panel offers a wide range of snow retention solutions due to its diverse panel widths and seam shape. It is well-suited for use with glue-down polycarbonate snow guards. Still, proper sealing is crucial to prevent moisture from seeping underneath and causing issues like re-freezing and detachment. Customers can choose from larger snow guard options, including the IceJax II, Snojax II, and SnoBlox Ace, or smaller alternatives like the Deuce and IceJax I. The SnowBreaker and SnowBreaker 3M provide safer snow and ice shedding, making them the recommended choice. The panel's rib shape allows compatibility with all clamp-on snow guards, such as SnoCleat RC, SnoCleat RCT, and either SnoBar or ColorBar rail systems, using standard stainless steel SnoBar clamps or aluminum RoofClamp attachment options. When using softer materials like aluminum, it may be necessary to install more rows of rails to account for the difference in panel strength.

Snap-On Standing Seam Metal Roofing Panels

Snap-On Standing Seam panels feature a concealed fastener design, which creates a clean, uninterrupted appearance on the finished installation. PAC-CLAD designed these panels to deliver long-lasting performance and durability. They use high-grade steel or aluminum to produce these panels, ensuring they can withstand the elements and maintain their structural integrity over time. The concealed fastener design enhances the aesthetic appeal and helps protect the fasteners from weathering and potential leaks. Regarding dimensions, the Snap-On Standing Seam panels are available in a range of widths, typically 12 to 20 inches wide with 1” tall ribs, allowing for versatile design options. The panel lengths can be customized to suit the specific project requirements, providing installation flexibility. The panels feature a snap-on batten cap that securely locks the panels together, creating a seamless and weather-resistant roof or wall system. This panel has a required slope minimum of 3:12.

This roofing panel features a batten cap or batten strip for the rib, which makes some snow retention systems incompatible. We do not recommend using clamp-on snow guards like the SnoCleat RC and SnoCleat RCT or clamp-on snow rail systems like the SnoBar and ColorBar with this panel. The reason is that the clamps would only attach to the strip itself, failing to obtain the necessary torque on the main panels, leading to the strips disengaging from the roof and causing significant and costly repairs. However, this panel is compatible with various glue-down polycarbonate snow guard models, such as the SnoBlox Deuce, SnoBlox Ace, IceJax II, and Snojax II. These products provide a safer and more controlled snow and ice retention method. Additionally, the SnowBreaker and SnowBreaker 3M can be viable options for those seeking to break the ice and snow into smaller chunks, slowing its release from the roof without retaining it on the roof. The adhesive recommended for polycarbonate snow guard installation is Surebond SB-190, which is the industry standard for glue-down snow retention systems.

High Snap-On Standing Seam Panel Metal Roofing Panels

The High Snap-On Standing Seam metal roofing system is a versatile solution for roofing, mansard, and fascia applications. The manufacturer designed these factory roll-formed panels for installation over a waterproofed solid substrate with a minimum 3:12 roof pitch. The panels feature continuous lengths up to 35 feet, with a minimum length of 4 feet, and a simplified pan design with leveling for superior flatness and improved workability. The manufacturer or a qualified fabricator must fabricate all flashing and trim using PAC-CLAD aluminum or steel. Petersen non-penetrating clips with a maximum spacing of 18 inches fasten the panels. This panel is available in 10", 11", 12", 16", and 18" rib spacing options with 1.5” tall ribs.

Like the Snap-On panel, the High Snap-On panel utilizes a batten cap or strip for the rib, making some snow retention systems incompatible. Specifically, clamp-on individual snow guards like the SnoCleat RC and SnoCleat RCT and clamp-on Snow rail systems like the SnoBar and ColorBar are unsuitable for this panel. The reason is that the clamps would only attach to the strip itself, failing to provide the necessary torque on the main panels. Disengaging the strips from the roof could lead to significant and costly repairs. Fortunately, this panel is compatible with various glue-down polycarbonate snow guard models, such as the SnoBlox Deuce, SnoBlox Ace, IceJax II, and Snojax II. These solutions offer a safer and more controlled snow and ice-shedding method. Additionally, SnowBreakers can be an excellent option for those seeking to break the ice and snow into smaller chunks, slowing its release from the roof. The recommended adhesive for installing polycarbonate snow guards is Surebond SB-190, which is the industry standard.

Snap-On Batten Metal Roofing Panels

Snap-On Batten Metal Roofing Panels, available in steel and aluminum, feature a simple pan design that provides superior flatness and enhanced workability on the job site. Snap-On Batten panels install over waterproofed solid substrates with a minimum roof slope requirement of 3:12. These panels can be factory roll-formed in continuous lengths ranging from a minimum of 4 feet to a maximum of 35 feet. The panels are secured using non-penetrating clips spaced at a maximum of 18 inches, ensuring a clean, seamless appearance. Customers can also opt for custom-fabricated trim and flashing, with a 35-year non-prorated finish warranty available for added peace of mind. This panel is available in 11", 13", 17", and 18" rib spacing options with a rib height of 1.5".

The roofing panel features a wide batten cap for the seam, making specific snow retention systems incompatible. Specifically, we do not recommend using clamp-on individual snow guards like the SnoCleat RC and SnoCleat RCT or clamp-on Snow rail systems like the SnoBar and ColorBar for this panel. The reason is that the clamps would only attach to the strip itself, failing to provide the necessary torque on the main panels. None of our clamps have adequate interior dimensions to straddle this seam. Still, if they could, they would crush it, which could lead to the strips disengaging from the roof, resulting in significant and costly repairs.

On the other hand, this panel is compatible with various glue-down polycarbonate snow guards, such as the SnoBlox Deuce, SnoBlox Ace, IceJax II, and Snojax II. These solutions offer a safer and more controlled snow and ice retention method. Additionally, the SnowBreaker products are recommended for those seeking to break the ice and snow into smaller chunks, slowing its release from the roof. The recommended adhesive for polycarbonate snow guards is Surebond SB-190, the industry standard for these systems.

Redi-Roof Standing Seam Metal Roofing Panels

The Redi-Roof standing seam metal roofing system requires installation over solid roof bases with a minimum slope of 3 inches of rise for every 12 inches of run. The panels are factory-formed in continuous lengths up to 45 feet, providing a seamless and durable roofing solution. The offset panel profile adds strength and allows for secure hex head fastener attachment. At the same time, the one-piece clip design with button-punched features ensures a snug, easy-to-install fit. This panel is available in multiple thicknesses of either aluminum or steel. This panel is available in 12”, 16”, or 18” widths with 1.5625” tall ribs.

This panel offers a variety of snow retention solutions due to its multiple panel widths and seam shape. It is well-suited for use with glue-down polycarbonate snow guards. Still, proper sealing is crucial to prevent moisture from seeping underneath and causing issues like re-freezing and detachment. Customers have a range of larger snow guard choices, such as the IceJax II, Snojax II, and SnoBlox Ace, and smaller options, like the Deuce and IceJax I, to hold snow and ice on the roof. The SnowBreaker and SnowBreaker 3M are ideal for safer snow and ice shedding. The panel's rib shape allows compatibility with all clamp-on snow guards, including SnoCleat RC and SnoCleat RCT, or the SnoBar and ColorBar rail systems, utilizing either standard stainless steel SnoBar clamps or aluminum RoofClamp attachment options. When using softer materials like aluminum, it may be necessary to install more rows of rails to account for the difference in panel strength.

PAC-150 90° Single Lock Metal Roofing Panels

The PAC-150 is a standing seam metal roofing panel that combines the performance of a semi-structural metal panel with the aesthetic appeal of an architectural roofing panel, featuring an attractive thin-rib profile. The manufacturer carefully levels the roofing coil to form the panels to ensure superior flatness. The PAC-150 panels have a rib height of 1.5 inches, which requires mechanical field seaming to a 90 or 180-degree angle, depending on the project's uplift requirements. The panels utilize a concealed-fastener clip design, providing maximum design flexibility. Installers apply the product over various substrates and install it on roofs with a minimum slope of 1:12. PAC-CLAD offers the PAC-150 panels in a range of widths from 12 to 20 inches. They can fabricate these panels from 24 gauge steel or .032 aluminum. They can curve the panels to a minimum radius of 20 feet, either in the field or at the factory. However, workers must exercise caution when seaming the panels on slopes greater than 6:12 to prevent seamer slippage and finish scratches.

This panel provides diverse snow retention options thanks to its versatile widths and seam design. It is well-suited for use with glue-down polycarbonate snow guards. Still, proper sealing is essential to prevent moisture from seeping underneath and causing issues like re-freezing and detachment. Customers can choose from larger snow guard options, including the IceJax II, Snojax II, and SnoBlox Ace, or smaller alternatives like the Deuce and IceJax I. The SnowBreaker and SnowBreaker 3M products safely shed snow and ice in a safer, controlled manner. The panel's rib shape allows compatibility with all clamp-on snow guards, such as SnoCleat RC, SnoCleat RCT, SnoBar, and ColorBar systems, utilizing either standard SnoBar clamps or RoofClamp attachment options. When using softer materials like aluminum, it may be necessary to install more rows of rails to account for the difference in panel strength. Pad-style snow guards are not recommended for curved roofs because they require a perfectly flat surface for proper installation. Snow rail systems are the correct product to use in these situations. If a clamp-on snow rail is incompatible with the seams on the curved panel, don't hesitate to contact the roofing manufacturer for their snow retention options.

PAC-150 180° Double Lock Metal Roofing Panels

The PAC-150 180° Double Lock metal roofing panels offer a unique combination of architectural aesthetics and semi-structural performance. These panels feature a leveled roofing coil that provides superior flatness, with virtually unlimited panel lengths available when field-formed. The panels have a rib height of 1.5 inches, necessitating mechanical field seaming to a 90° or 180° angle. The specific angle required depends on the project's uplift requirements. This seaming process ensures a secure and durable installation of the panels. One of the key advantages of the PAC-150 panels is their concealed-fastener clip design, which allows for maximum design flexibility. These panels are compatible with a diverse array of substrates. They can be installed on slopes as low as 1:12 pitch, with a variety of width options from 12 to 20 inches available in 24-gauge steel or .032 aluminum.

Additionally, PAC-CLAD can curve the PAC-150 panels to a minimum radius of 20 feet. They offer the option to perform the curving in the field or at the factory. Employing the PAC-150 panels necessitates the use of mechanical seaming tools. However, it is crucial to exercise prudence when seaming on slopes exceeding a 6:12 ratio, as this can lead to seamer slippage and mar the final finish.

This panel offers a variety of snow retention solutions due to its multiple panel widths and seam shapes. It is well-suited for use with glue-down polycarbonate snow guards. Still, proper sealing is crucial to prevent moisture from seeping underneath and causing issues like re-freezing and detachment. Customers have a range of larger snow guard choices, such as the IceJax II, Snojax II, and SnoBlox Ace, as well as smaller options like the Deuce and IceJax I. The SnowBreaker and SnowBreaker 3M are ideal for safer snow and ice shedding. The panel's rib shape allows compatibility with all clamp-on snow guards, including SnoCleat RC, SnoCleat RCT, SnoBar, and ColorBar systems, utilizing standard SnoBar clamps or RoofClamp attachment options. When using softer materials like copper or aluminum, it may be necessary to install more rows of rails to account for the difference in panel strength. Pad-style snow guards may not be the most suitable option for curved roof surfaces. These devices necessitate a completely flat surface to ensure proper installation. For curved roof applications, Snow rail systems are the more appropriate choice. Suppose the clamp-on snow rail design does not work with the seams on the curved panels. In that case, contacting the roofing manufacturer for guidance on effective snow retention solutions is advisable.

PAC T-250 Metal Roofing Panels

The PAC T-250 is a versatile metal roofing panel system designed for application on roof slopes as low as 1/2:12, making them suitable for various substrates. The panels are available in 22 and 24-gauge steel or .032 and .040 aluminum, providing both structural performance and architectural aesthetics, with a 2.625" rib height from the deck and 16” or 18” widths available. The PAC T-250 features a continuous and intermittent concealed-fastener clip system engineered for thermal expansion and contraction. Additionally, the panels come with factory-applied sealant beads along the seam cover, ensuring a durable and weather-resistant installation. PAC-CLAD designed these panels for use in roofing applications. The panels are compatible with various substrates, including plywood, nailboard insulation, metal decking, purlins, and rigid insulation. This comprehensive product offering combines structural integrity, design flexibility, and a robust warranty, making it a compelling choice for architects, contractors, and building owners seeking a high-quality metal roofing solution.

These roofing panels are well-suited for use with various snow guard systems. To ensure proper sealing of glue-down polycarbonate snow guards and prevent moisture from seeping underneath, applying a more generous amount of adhesive may be necessary to account for the different panel ribs or striations. Failure to adequately seal any gaps could result in snowmelt trapped beneath the guards, leading to re-freezing and potential detachment, which could ultimately cause system failure. Customers seeking larger snow guard options compatible with this panel can choose from the IceJax II, Snojax II, or SnoBlox Ace systems. Conversely, those preferring a smaller footprint may opt for the Deuce or IceJax I models. The SnowBreaker and SnowBreaker 3M systems are ideal for promoting the safer shedding of snow and ice. This panel's T-shaped rib design allows it to be used with the clamp-on SnoCleat RCT and the SnoBar and ColorBar systems when paired with the RCB-3 bracket and aluminum RoofClamp RCT attachments. While the panel features a mechanically fastened batten cap, it only covers the seam's top. It does not affect the clamp-on snow retention attachment. While aluminum may have a softer composition than steel, this need not be a limitation. In fact, by thoughtfully installing additional rows of rails on these roofs, we can easily account for the slight difference in panel strength. This adaptive approach allows us to harness aluminum's many benefits, from its lightweight yet durable nature to its superior corrosion resistance, without compromising the structural integrity of the roof system.

Pac-Clad Snow Guard Compatibility Chart

Optimizing Snow Guard Selection for PAC-CLAD Standing Seam Roofing

1. The Importance of a Proper Layout

Regardless of the snow retention system chosen, seeking guidance from the manufacturer on the optimal layout is crucial for performance. We provide free advice, resources, and tools like spacing charts and custom quote request forms. Your snow retention system should span the entire roof length, typically with multiple rows ascending the slope to distribute the weight evenly. You should avoid placing isolated snow guards only above specific areas like doorways, HVAC units, or chimneys. Isolated installations dramatically increase the risk of system failure.

2. Incorporating IceStoppers for Snow Rail Systems

When using SnoBar or ColorBar Snow rail systems on standing seam roofs, it is advisable to incorporate IceStopper attachments, especially in areas above pedestrian walkways or parking spaces. IceStoppers can be installed during the initial setup or added later as a retrofit option. Ensuring proper IceStopper spacing is essential for effectively managing snow and ice accumulation.

3. Timing Considerations for Glue-Down Snow Guards

While clamp-on guards and rail systems can be installed year-round, timing is crucial for glue-down snow guards. The industry-standard adhesive, Surebond SB-190, requires approximately 28 days at 50°F to cure fully. We recommend installing glue-down snow guards in the USA and Canada during late spring or early summer for optimal results. After 24 hours, rain will not affect the adhesive. However, using Surebond SB-190 on copper roofs is discouraged due to potential chemical reactions that could accelerate panel corrosion.

4. Color-Matching Options for Aesthetic Integration

Our metal snow retention solutions feature color-matching options to integrate with the roof's appearance seamlessly. The SnoCleat RC, SnoCleat RCT, and ColorBar Snow rail systems are compatible with slide-in metal strips that match their faces to the roof's color. Customers or installers can purchase the strips with the system or make them from leftover roofing materials. Custom powder coating services are also available. Powder coating will require additional production and delivery time, and custom colors may incur surcharges or increased lead times.

5. Avoiding Screw-Down Systems on Standing Seam Roofs

You should never use screw-down, mechanically fastened snow guards or rails on standing seam metal roofs. This installation method can pose risks to the panels due to the roof's floating nature and thermal expansion/contraction, potentially leading to leaks, costly repairs, and voiding the manufacturer's warranty. Instead, opt for clamp-style or adhesive-mounted snow retention systems compatible with standing seam roofs.

6. Understanding Ground Snow Load: A Critical Factor

Knowing the ground snow load is essential when choosing snow retention systems for metal roofs. Most snow guards and rail systems work well for ground snow loads of up to 45 pounds per square foot (psf). Still, snow rails with enhanced holding capacity are required for higher loads, as individual pad-style snow guards are not compatible with these high snow loads. Suppose the roof panels are not compatible with the rails. In that case, the panel manufacturer should provide their recommended snow guard solution. You can obtain ground snow load data through online searches, building plans, or by contacting local authorities.

7. Test Fit Before Purchasing

Before finalizing the order, you should test fit any snow guards, clamps, brackets, or IceStoppers to ensure compatibility with the project. Our website allows customers to order samples without minimums and offers 27" and 20" bar sample kits. Investing in samples can prevent costly mistakes during installation, making it a prudent precaution.

Choosing the Right Snow Guard

Selecting the appropriate snow guard for your project can be tricky, but we're here to assist you. To help guide your selection, we've compiled some additional valuable resources on our website:

"Snow Guards: What Works and What Doesn't"

This page provides insights into the performance and suitability of different snow guard styles while giving examples of correct and incorrect layouts and installation techniques.

“Buyers Guide for Snow Guards”

Our comprehensive buyer's guide offers detailed information to help you navigate the selection process and find the snow guard or snow retention system that best meets your needs.

Contact Us

If you have any questions or require assistance with your order, please don't hesitate to contact our team. Please email us at support@snojax.com or call 1-800-766-5291; we'll happily provide personalized guidance.