Snow Retention Solutions for New Castle Metal’s Standing Seam Roofs
Posted by Derek Gamble - SnoBlox-Snojax Specialist on Jan 16th 2026
See the Snow Guards Compatibility Chart for New Castle Metal Standing Seam Metal Roofing Panels.
Which snow guard systems work best with New Castle Metal’s standing seam panels?
Standing seam metal roofs offer a sleek, contemporary look and long-term durability. Still, they also introduce unique safety considerations in regions that see frequent snowfall.
Controlling how snow and ice move across the roof is critical for preventing winter-related damage. When accumulated snow releases in a single sheet, a phenomenon often called a roof avalanche, it can harm anything in its path. Cars, landscaping, walkways, and outdoor structures are all vulnerable, and the sudden slide can also endanger people and pets. To reduce these risks, installers use snow guards and bar-style retention systems designed to match the panel profile and attachment method. Because concealed-fastener panels require solutions tailored to their specific geometry, selecting the appropriate snow retention system is essential for safety, longevity, and overall performance. This blog outlines snow guard options that integrate well with New Castle Metal's standing seam panels so that you can choose the right setup for your project.
About New Castle Metal
New Castle Metal produces custom standing seam roofing systems supported by regional manufacturing, quick turnaround times, and strong local expertise. The company has built a solid reputation throughout the Northeast by pairing precision metal fabrication with the responsiveness contractors need on demanding schedules. Founded in 2016 as part of New Castle Building Products, the brand expanded to offer a full lineup of standing seam panels, edge metal, and trim components manufactured close to the markets they serve. With facilities in Long Island City and Hicksville, New York; Northborough, Massachusetts; and Baltimore, Maryland, New Castle Metal supplies projects across New York, New Jersey, Connecticut, and the Mid-Atlantic. You will see their standing seam systems on residential, commercial, and industrial buildings where reliability, consistency, and local support are priorities.
NC100SS – 1-inch Mechanical Lock Standing Seam Panel
The NC100SS is a mechanically seamed standing seam panel engineered for versatility on straight-run residential and light commercial roofs. It offers a strong blend of durability and adaptability, making it a popular choice for upscale homes and smaller commercial structures. This profile features a 1-inch seam height and comes in coverage widths from 12 to 21 inches, giving installers flexibility in layout and material planning. New Castle Metal produces the NC100SS in 24- and 26-gauge Galvalume and Drexlume steel, as well as in aluminum and copper. Designed for installation over plywood decking with approved underlayment, the panel requires a minimum roof pitch of 2:12, making it suitable for lower-slope applications where weather protection is essential. The panel can also be curved, offering additional design possibilities while requiring careful attention to safety during installation. See the Snow Guards Compatibility Chart for New Castle Metal NC100SS Standing Seam Metal Roofing Panels.
These panels work with a wide selection of our snow retention products, allowing installers to match the system to the building's snow load and design requirements. Adhesive-mounted polycarbonate guards remain a common solution, though proper installation is crucial to ensure a strong bond and prevent moisture issues. For regions with heavy snowfall, larger guards such as IceJax II, Snojax II, and SnoBlox Ace offer dependable holding strength. In areas with lighter snow loads, smaller models like IceJax I, EcoJax, and SnoBlox Deuce typically provide adequate performance. We designed the SnowBreaker and SnowBreaker 3M to slow snow movement rather than stop it entirely. Clamp-on options, including SnoCleat RC, SnoCleat RCT, SnoBar, and ColorBar, attach to the panel ribs using stainless SnoBar clamps or aluminum RoofClamp hardware. Performing a test fit is recommended to confirm proper engagement before completing the installation.
NC150SS – 1.5-Inch Mechanical Lock Standing Seam Panel
The NC150SS is a mechanically seamed standing seam panel engineered for residential and commercial roofs that require dependable performance on lower slopes. With a taller 1.5-inch seam, this profile provides increased strength without sacrificing its streamlined architectural look. Panels are produced in widths ranging from 12 to 20 inches, providing installers with predictable spacing and straightforward layout planning. New Castle Metal offers the NC150SS in 24- and 26-gauge Galvalume or Drexlume steel, as well as aluminum, copper, and zinc. Contractors can install these panels over steel or plywood substrates and are approved for roof pitches as low as 2:12. Although the panel can be curved, curved applications introduce additional considerations for snow retention. See the Snow Guards Compatibility Chart for New Castle Metal NC150SS Standing Seam Metal Roofing Panels.
This profile works with a broad selection of our snow retention products, allowing installers to match the system to the project's snow load and design requirements. Adhesive-mounted polycarbonate guards remain a popular choice, but proper installation is essential to ensure strong adhesion and prevent moisture intrusion. For regions with heavier snowfall, larger guards such as IceJax II, Snojax II, and SnoBlox Ace provide robust holding strength. In milder climates, smaller units such as IceJax I, EcoJax, and SnoBlox Deuce typically deliver sufficient performance. We designed the SnowBreaker and SnowBreaker 3M to slow sliding snow rather than stop it completely. Clamp-on systems, including SnoCleat RC, SnoCleat RCT, SnoBar, and ColorBar, secure to the ribs using stainless SnoBar clamps or aluminum RoofClamp hardware. We recommend a test fit to verify proper engagement before final installation.
NC200MS – 2-Inch Mechanical Lock Standing Seam Panel
The NC200MS is a structural, mechanically seamed panel designed for high-demand commercial and industrial roofing applications. Positioned as one of the most robust profiles in New Castle Metal's lineup, it features a full 2-inch seam height. It is available in standard widths of 14, 16, and 18 inches. These dimensions help designers balance structural capacity with efficient panel layout. The NC200MS comes in 22- and 24-gauge Galvalume or Drexlume steel, as well as aluminum, and is engineered to meet stringent wind uplift and environmental performance standards. Installers can place the panel over steel purlins, metal decking, or plywood. With a minimum slope requirement of 1/2:12, it performs reliably on very low-slope roofs where watertight detailing and structural integrity are critical. Curved configurations are also available for this panel series. See the Snow Guards Compatibility Chart for New Castle Metal NC200MS Standing Seam Metal Roofing Panels.
This heavy-duty profile is compatible with a wide range of our snow retention systems, giving installers flexibility to match the setup to the building's snow load and architectural needs. Adhesive-applied polycarbonate guards remain a common choice, though they require correct installation to ensure long-term adhesion and prevent moisture issues. For areas with significant snowfall, larger guards such as IceJax II, Snojax II, and SnoBlox Ace provide strong retention. In lighter-snow regions, smaller models like IceJax I, EcoJax, and SnoBlox Deuce generally perform well. We designed the SnowBreaker and SnowBreaker 3M to slow snow movement rather than fully restrain it. Clamp-on systems, including SnoCleat RC, SnoCleat RCT, SnoBar, and ColorBar, attach to the ribs using stainless SnoBar clamps or aluminum RoofClamp components. We recommend a test fit to confirm proper attachment before installation.
NC450SL – 1.5-Inch Snap Lock Standing Seam Panel
The NC450SL is a snap-lock standing seam panel developed for fast installation while maintaining consistent seam alignment and a clean architectural finish. Its 1.5-inch snap-lock seam engages with the NCM 450SL clip to create a continuous interlocking connection, allowing crews to work efficiently without compromising seam integrity. Because of their concealed fasteners, the panel can expand and contract naturally with temperature changes, helping maintain straight seams and a uniform appearance over long panel runs. Available in widths from 12 to 20 inches, the NC450SL installs on roofs with slopes of 3:12 or greater. New Castle Metal manufactures this profile in 22-, 24-, and 26-gauge steel, as well as aluminum, making it suitable for both residential and light commercial projects. See the Snow Guards Compatibility Chart for New Castle Metal NC450SL Standing Seam Metal Roofing Panels.
This snap-lock panel supports a full range of our snow retention solutions, enabling installers to tailor the system to the building's snow load and design requirements. Adhesive-mounted polycarbonate guards remain a popular option when installed correctly, ensuring a strong bond and preventing moisture-related concerns. For heavier snow conditions, larger guards such as IceJax II, Snojax II, and SnoBlox Ace offer reliable holding strength. In lighter climates, smaller models like IceJax I, EcoJax, and SnoBlox Deuce typically provide adequate performance. We designed the SnowBreaker and SnowBreaker 3M to slow sliding snow rather than stop it entirely. Clamp-on systems, including SnoCleat RC, SnoCleat RCT, SnoBar, and ColorBar, mount to the ribs using stainless SnoBar clamps or aluminum RoofClamp hardware. We recommend a test fit to confirm proper engagement before completing installation.
NC550S – 1.5-Inch Snap Lock Standing Seam Panel
The NC550S is a snap-lock standing seam panel engineered for architectural applications across both residential and commercial projects. It offers a blend of visual appeal and installation efficiency for roofs that want the streamlined look of a snap-lock system paired with dependable performance. This profile features a 1.5-inch seam height and is produced in standard widths from 12 to 20 inches, giving installers flexibility when planning panel layout. New Castle Metal manufactures the NC550S in 22- and 26-gauge Galvalume or Drexlume steel, with aluminum options available. Contractors can install the panel over open-frame steel purlins or plywood decking, and it requires a minimum slope of 3:12, making it suitable for a wide range of light commercial and residential roof designs. See the Snow Guards Compatibility Chart for New Castle Metal NC550S Standing Seam Metal Roofing Panels.
This panel profile works with a broad lineup of our snow retention solutions, allowing installers to tailor the system to the project's snow load and architectural needs. Adhesive-mounted polycarbonate guards remain a popular choice, though contractors must install them carefully to ensure proper adhesion and prevent moisture issues. For regions with heavier snowfall, larger guards such as IceJax II, Snojax II, and SnoBlox Ace provide strong retention. In milder climates, smaller guards like IceJax I, EcoJax, and SnoBlox Deuce typically offer sufficient performance. We designed the SnowBreaker and SnowBreaker 3M to slow snow movement rather than stop it completely. Clamp-on systems, including SnoCleat RC, SnoCleat RCT, SnoBar, and ColorBar, attach to the ribs using stainless SnoBar clamps or aluminum RoofClamp components. We recommend a test fit to confirm proper alignment before final installation.
NCM675S – 1.75-Inch Snap Lock Standing Seam Panel
The NCM675S is a snap-lock standing seam panel that blends structural capability with broad design versatility. With a 1.75-inch seam height, it provides added seam strength without requiring mechanical seaming, making it a strong option for both commercial and residential roofs. This profile is available in coverage widths of 12, 14, 16, and 18 inches, giving designers flexibility to balance structural needs with efficient panel layout. New Castle Metal manufactures the NCM675S in 22- and 24-gauge Galvalume or Drexlume steel, as well as aluminum. It installs over steel purlins, metal decking, or plywood. It is approved for slopes as low as 1/2:12, making it suitable for very low-slope applications where snap-lock systems must still perform reliably. See the Snow Guards Compatibility Chart for New Castle Metal NCM675S Standing Seam Metal Roofing Panels.
This panel integrates with a wide range of our snow retention systems, allowing installers to configure the setup based on snow load and architectural requirements. Adhesive-applied polycarbonate guards remain a dependable option, provided contractors install them correctly to ensure a long-lasting bond and prevent moisture-related issues. For heavy-snow regions, larger guards such as IceJax II, Snojax II, and SnoBlox Ace offer strong holding capability. In lighter-snow climates, smaller models like IceJax I, EcoJax, and SnoBlox Deuce typically meet performance needs. We designed the SnowBreaker and SnowBreaker 3M to slow sliding snow rather than stop it entirely. Clamp-on systems, including SnoCleat RC, SnoCleat RCT, SnoBar, and ColorBar, secure to the ribs using stainless SnoBar clamps or aluminum RoofClamp hardware. We recommend a test fit to verify proper attachment before installation.
NC100CS – Batten Cap Standing Seam Panel
The NC100CS is a batten-cap standing seam panel designed for architectural applications that require both visual distinction and the ability to accommodate curved or straight rooflines. Its batten-cap seam profile creates a pronounced architectural look while supporting curved installations. The system is available in coverage widths from 12 to 18 inches. New Castle Metal manufactures the NC100CS in 22-, 24-, and 26-gauge steel, as well as aluminum and copper. It installs over plywood decking with approved underlayment. It requires a minimum slope of 3:12. Its ability to curve makes it ideal for radius roofs, canopies, and other architectural features, though this seam style limits compatible fall protection options. See the Snow Guards Compatibility Chart for New Castle Metal NC100CS Standing Seam Metal Roofing Panels.
Clamp-on snow retention systems are generally unsuitable for panels with separate batten strips. Because clamps grip only the batten and not the structural portion of the panel, they often fail to generate the torque needed for a secure connection. This installation error can cause the batten strip to detach from the roof, leading to costly damage. For this panel type, adhesive-mounted polycarbonate snow guards are recommended, provided the installation surface is flat and not curved. Individual guards must be placed on a level surface to achieve proper adhesion and performance. If the mounting area is radiused or uneven, the guards may not bond correctly, reducing their ability to control sliding snow and ice.
New Castle Metal Compatibility Chart for Snow Guards
| NC100SS Panel | NC150SS Panel | NC200MS Panel | NC450SL Panel | NC550S Panel | NCM675S Panel | NC100CS Panel | |
|---|---|---|---|---|---|---|---|
 Ecojax |
YES | YES | YES | YES | YES | YES | YES |
 IceJax I |
YES | YES | YES | YES | YES | YES | YES |
 IceJax II |
YES | YES | YES | YES | YES | YES | YES |
 SnoBlox Deuce |
YES | YES | YES | YES | YES | YES | YES |
 Ace |
YES | YES | YES | YES | YES | YES | YES |
 Snojax II |
YES | YES | YES | YES | YES | YES | YES |
 SnowBreaker |
YES | YES | YES | YES | YES | YES | YES |
 SnoBar |
YES | YES | YES | YES | YES | YES | NO |
 ColorBar |
YES | YES | YES | YES | YES | YES | NO |
 SnoBar RCB-3 |
YES | YES | YES | YES | YES | YES | NO |
 ColorBar RCB-3 |
YES | YES | YES | YES | YES | YES | NO |
 2 Bar SnoBar |
YES | YES | YES | YES | YES | YES | NO |
 2 Bar ColorBar |
YES | YES | YES | YES | YES | YES | NO |
 SnoCleat RC |
YES | YES | YES | YES | YES | YES | NO |
 SnoCleat RCT |
YES | YES | YES | YES | YES | YES | NO |
Considerations for Adding Snow Guards to Standing Seam Roofs by New Castle Metal
Adapt installation for complex roof features.
Snow guard placement often needs to be modified to accommodate valleys, pitch changes, and other architectural details. Proper positioning in these areas is crucial for maintaining system effectiveness and preventing future problems.
Order sample snow guards for test-fitting.
Our website offers samples with no minimum order, allowing installers to test-fit guards directly on the roof surface. This step helps verify sizing and alignment while reducing the likelihood of installation mistakes. Be sure to follow the manufacturer's guidelines to maintain warranty protection.
Use systems tailored for unique roof shapes.
Roofs with steep angles, curved sections, or other unconventional designs frequently require specialized snow-retention solutions. Your roofing supplier can help identify which products are best suited for these nonstandard configurations.
Apply adhesives during the correct weather window.
Contractors should only install Adhesive-mounted guards when outdoor temperatures stay above 50°F for a full 28 days. While the adhesive becomes moisture-resistant after about a day, it takes about 4 weeks to cure fully. Do not use Surebond SB-190 on copper roofing, as it can speed up premature corrosion.
Verify that guards match your roof design.
Select snow guards specifically engineered for your roof’s panel profile and material. Compatibility charts help prevent mismatches and ensure long-term performance.
Account for local snow load standards.
Review local building codes to ensure your snow-retention system meets the required load ratings. Pad-style guards typically handle around 45 pounds per square foot. Still, regions with heavier snowfall may require more robust rail-based systems.
Conclusion
From the earliest planning stages through the final installation of your snow guard system, our team provides guidance at every step. Whether you reach out by phone, email, or through our website, you’ll receive project-specific support designed to help you move forward with confidence. To simplify product selection, we offer a detailed Snow Guard Buyer’s Guide along with a Best Practices manual packed with expert recommendations. These resources help you avoid common mistakes and approach your installation with clarity and assurance. With clear instructions, reliable products, and attentive customer service, we work to ensure your snow-retention system performs exactly as it should. Every interaction reflects our commitment to safety, integrity, and dependable support.
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.