Fall Protection For Sheet Metal Supply LTD Panels
Posted by Howie Scarboro - CEO Fall Protection Distributors, LLC on Feb 4th 2026
See the Roof Anchor Compatibility Chart for Sheet Metal Supply Ltd. (SMS) Standing Seam Metal Roofing.

Who Is Sheet Metal Supply Ltd?
Sheet Metal Supply Ltd. (SMS) has been a trusted leader in architectural metal solutions since its establishment in 1991. Headquartered in Grayslake, Illinois, SMS operates out of a state-of-the-art 25,000-square-foot fabrication facility. The company specializes in delivering premium metal products and services tailored to residential and commercial projects, earning a reputation for exceptional craftsmanship and customer satisfaction.
With a focus on innovation and quality, SMS offers a wide range of standing seam roof panels, including snaplock and mechanical-lock profiles, designed to meet the diverse needs of architects, contractors, and builders. Sheet Metal Supply is also known for its efficient lead times, unmatched product consistency, and attention to detail. Their panels provide superior weather resistance and durability, making them suitable for roofing and wall applications. The company supports its clients with material take-offs, customized flashing samples, and an extensive library of paint finishes and material profiles, offering end-to-end solutions for architectural metal projects.
Why Are Compatible Fall Protection Anchors Critical For SMS Roofs?
Standing seam roofs from Sheet Metal Supply Ltd. offer durability, aesthetics, and long-term performance. These roofs use a seamless design and concealed fasteners to maintain a weathertight barrier. However, ensuring worker safety during installation, maintenance, or inspections requires carefully selecting fall protection anchors that do not compromise the roof's structural integrity.
Traditional fall protection systems that penetrate the roof can compromise the design, creating points of vulnerability that lead to leaks, corrosion, and reduced overall performance. Such modifications can also void manufacturer warranties, posing additional challenges for building owners and contractors.
Non-penetrating fall protection systems are the ideal choice for SMS standing seam panels. These anchors clamp securely to the panel seams or over the roof peak without drilling, maintaining the roof's aesthetic and functional integrity while providing OSHA-compliant tie-off points. By avoiding unnecessary penetrations, these systems help extend the roof's lifespan while ensuring worker safety.
Proper Attachment: Set Screws And Torque Requirements
Your safety and the SSRA1 anchor's certified holding power depend on correct set screw application. We provide specialized fastening options based on the material gauge of your SMS panels:
- Cupped-Tip Stainless Steel Set Screws: Use these exclusively on 22-gauge steel panels. Torque them to 90 inch-pounds for a secure, non-penetrating lock.
- Nylon-Tipped Set Screws: Apply these to 22- or 24-gauge steel panels to achieve certified holding power. Torque them to 180–200 inch-pounds for maximum strength.
- Maintenance: Treat nylon tips as consumables. Replace them every 3 to 5 uses to ensure they maintain the necessary coefficient of friction.
CRITICAL WARNING: Never use an impact gun to install set screws. Over-torquing with an impact driver will crush the standing seam, damage the anchor hardware, and void the Sheet Metal Supply warranty. Always use a calibrated torque wrench for final installation.
The SSRA Component System & Expansion Tools
The SSRA system is a professional-grade modular platform designed to adapt to the diverse needs of SMS job sites:
- SSRA1 Seam Anchor: The foundation of the system. This patented, non-penetrating anchor provides a certified tie-off point rated at 5,000 pounds.
- SSRA2 Adjustable Roof Jack Adapter: Mounts directly to the SSRA1 to support 10-foot wooden walk-boards. Fully adjustable to match the roof pitch and seam height.
- SSRA3 Anchor Plates: Heavy-duty aluminum spanner plates for mounting temporary horizontal lifeline systems.
- 100-Foot SSRA Temporary HLL Kit: A complete, non-penetrating solution for temporary projects. Restrict use to roof pitches of 4:12 or less.
- 120-Foot Super Anchor Permanent HLL Kit: Long-term solution featuring 5-inch riser posts and 120 feet of galvanized cable. Attaches with non-penetrating seam clamps. Restrict use to roof pitches of 4:12 or less.
- The Ridge Pro Steep Assist: The premier "First-Man-Up" tool for SMS roof pitches between 6:12 and 12:12.
SMS Sheet Metal Supply ML-1 Mechanical Panels (SSRA Compatible 22/24 ga. Steel)

The ML-1 panel is a highly popular standing-seam roofing system that offers exceptional durability and design versatility. Referred to as a Double Lock Standing Seam, these panels are mechanically field-seamed for a secure, watertight finish, making them a top choice for architectural roofing applications. The clip fastening system allows for thermal expansion, ensuring long-term performance and integrity. With a minimum roof slope of 3:12, ML-1 panels are designed for commercial and residential use and meet various UL and ASTM safety and quality standards. These panels are available with radius options for curved roof designs. Material options include 22- or 24-gauge G-90 galvanized steel, Galvalume, Kynar 500 finishes, paint grip, architectural-grade copper in multiple weights, and RHEINZINK architectural zinc. Aluminum options are available in mill finish or anodized forms. See the Roof Anchor Compatibility Chart for Sheet Metal Supply Ltd. (SMS) 22 Gauge and 24 Gauge ML-1 Mechanical Standing Seam Metal Roofing.
Fall Protection For ML-1 Panels:
Ensuring proper fall protection for ML-1 panels requires careful consideration of the panel type and substrate.
NOTICE: Radius panels are not compatible with SSRA products or Ridge Pro systems. Consult a trained safety expert to inspect curved roof systems and provide the specialized fall protection knowledge these projects require.
- Non-Curved 22/24 Gauge Steel: SSRA1 Seam Anchors, SSRA2 Adjustable Roof Jacks, and SSRA3 Anchor Plates provide optimal safety solutions. The SSRA1 Seam Anchor attaches securely to the standing seams without requiring penetrations, preserving the roof's structural and watertight properties.
- Walking Platforms: The SSRA2 Adjustable Roof Jacks integrate seamlessly with the SSRA1, enabling walkboards for safe, efficient roof navigation.
- Temporary Lifelines: The 100-Foot SSRA Temporary HLL Kit (utilizing the SSRA3 Anchor Plate and two SSRA1 anchors) facilitates horizontal movement for workers on large-scale projects, such as the Malta Dynamics HLL3001.
- Permanent Lifelines: For long-term maintenance, the 120-Foot Super Anchor Permanent HLL Kit features 5-inch riser posts and non-penetrating seam clamps to ensure safe, ongoing access.
- Other Substrates: For aluminum, copper, and zinc, the Ridge Pro Steep Assist anchor is perfect for slopes ranging from 6:12 to 12:12. This non-penetrating system hooks over the roof peak, maintaining worker safety and roof integrity by ensuring 100% tie-off at all times.
SMS Sheet Metal Supply ML-1.5 Mechanical Panels (SSRA Compatible 22/24 ga. Steel)

The ML-1.5 panel is a versatile standing seam roofing solution that combines architectural elegance with structural integrity. Known as a Double-Lock Standing Seam, this mechanically field-seamed panel is ideal for low-slope roofs with a minimum roof slope of 1.5:12. Its clip-fastened design accommodates thermal expansion, ensuring the durability and long-term performance of the roofing system. These panels are available with one- or two-stage seaming processes and meet various UL and ASTM safety and quality certifications. Radius panel options are also offered for curved roof designs, enhancing the panel's adaptability for complex architectural projects. Material options for ML-1.5 panels are diverse, including 22- or 24-gauge G-90 galvanized steel, Galvalume, Kynar 500 finishes, architectural-grade copper in multiple weights, and RHEINZINK architectural zinc. See the Roof Anchor Compatibility Chart for Sheet Metal Supply Ltd. (SMS) 22 Gauge and 24 Gauge ML-1.5 Mechanical Standing Seam Metal Roofing.
Fall Protection For ML-1.5 Panels:
Implementing adequate fall protection for ML-1.5 panels requires consideration of both the panel type and substrate.
NOTICE: Radius panels are not compatible with SSRA products or Ridge Pro systems. Consult a trained safety expert to inspect curved roof systems and provide the specialized fall protection knowledge these projects require.
- Non-Curved 22/24 Gauge Steel: The SSRA1 Seam Anchor, SSRA2 Adjustable Roof Jack, and SSRA3 Anchor Plate offer an ideal combination of safety and efficiency. The SSRA1 Seam Anchor clamps securely to standing seams without penetrating the roof, preserving the panels' structural integrity and watertight properties.
- Stable Platforms: The SSRA2 Adjustable Roof Jack works seamlessly with the SSRA1, enabling walkboards to create safe, stable work platforms.
- Temporary Lifelines: Use the 100-Foot SSRA Temporary HLL Kit (paired with the SSRA3 Anchor Plate and Malta Dynamics HLL3001) to enable workers to move securely across expansive roof areas while maintaining continuous tie-off.
- Permanent Lifelines: For long-term maintenance, the 120-Foot Super Anchor Permanent HLL Kit provides a permanent lifeline solution using 5-inch riser posts and non-penetrating seam clamps that preserve the panels.
- Substrates (Aluminum/Copper): For substrates other than 22- and 24-gauge steel, the Ridge Pro Steep Assist system is an excellent option for roof slopes between 6:12 and 12:12. This ridge-mounted, non-penetrating system hooks over the roof peak, ensuring worker safety and compliance.
SMS Sheet Metal Supply ML-2 Mechanical Panels (SSRA Compatible 22/24 ga. Steel)

The ML-2 panel is a robust solution for architectural and structural standing seam roofing projects. Known as a Double-Lock Standing Seam, this mechanically field-seamed panel is for low-slope roofs with a minimum roof slope of ¾:12. Its versatility allows for installation over open purlins or solid substrates, making it a preferred choice for both commercial and industrial applications. Designed to meet a range of UL and ASTM certifications, the ML-2 panel ensures safety, durability, and weather resistance. The one- or two-stage seaming process provides flexibility during installation. At the same time, the availability of in-seam sealants enhances watertight performance. SMS offers this panel in a wide range of materials, including 22- or 24-gauge G-90 galvanized steel, Galvalume, Kynar 500 finishes, architectural-grade copper in multiple weights, and RHEINZINK architectural zinc. See the Roof Anchor Compatibility Chart for Sheet Metal Supply Ltd. (SMS) 22 Gauge and 24 Gauge ML-2 Mechanical Standing Seam Metal Roofing.
Fall Protection For ML-2 Panels:
Implementing adequate fall protection for ML-2 panels requires carefully selecting systems compatible with the panel's unique design.
- 22/24 Gauge Steel: The SSRA1 Seam Anchor, SSRA2 Adjustable Roof Jack, and SSRA3 Anchor Plate are recommended solutions. The SSRA1 Seam Anchor clamps securely to panel seams without penetrating the roof, preserving its structural integrity and weather-tightness.
- Walkboards: The SSRA2 Adjustable Roof Jack, used with the SSRA1, supports walkboards to create stable, secure work platforms.
- Temporary Lifelines: The 100-Foot SSRA Temporary HLL Kit, paired with the SSRA3 Anchor Plate and Malta Dynamics HLL3001, accommodates horizontal movement and enables continuous tie-off along extensive rooflines.
- Permanent Lifelines: For long-term maintenance, the 120-Foot Super Anchor Permanent HLL Kit is the preferred choice for industrial facilities requiring frequent rooftop maintenance, providing high-strength anchorage via non-penetrating clamps and 5-inch riser posts.
- Other Substrates: For substrates such as aluminum, copper, or stainless steel, the Ridge Pro Steep Assist system is recommended for roof slopes ranging from 6:12 to 12:12.
SMS Sheet Metal Supply SL-1 Panels (SSRA Compatible 22/24 ga. Steel)
The SL-1 panel is a versatile snaplock standing seam option renowned for its popularity and widespread use in construction. Its ease of installation and aesthetic appeal make it a preferred choice for architectural projects. The SL-1 is designed specifically as an architectural panel. The clip-fastened design of these panels allows for thermal expansion, ensuring durability and stability over time. With a minimum roof slope of 3:12, these panels are compatible with a wide range of roof configurations. Available in a range of substrates, including 22- and 24-ga steel and aluminum with Kynar 500 finishes, G-90 galvanized, Galvalume mill finishes, and architectural-grade copper, the SL-1 panels meet diverse design and performance requirements. See the Roof Anchor Compatibility Chart for Sheet Metal Supply Ltd. (SMS) 22 Gauge and 24 Gauge SL-1 Snaplock Standing Seam Metal Roofing.
Fall Protection For SL-1 Panels:
Non-penetrating fall protection systems are the optimal choice to ensure worker safety and preserve the structural integrity of SL-1 panels.
- 22/24 Gauge Steel: The SSRA1 Seam Anchor, SSRA2 Adjustable Roof Jack, and SSRA3 Anchor Plate offer reliable and OSHA-compliant solutions. The SSRA1 Seam Anchor clamps directly to the panel seams without drilling, maintaining the roof's watertight seal while providing secure tie-off points.
- Walking Platforms: The SSRA2 Adjustable Roof Jack integrates seamlessly with the SSRA1, providing walkboards for safe, stable navigation across the roof.
- Temporary Lifelines: The 100-Foot SSRA Temporary HLL Kit, used with the SSRA3 Anchor Plate, supports temporary horizontal lifelines such as the Malta Dynamics HLL3001. This configuration ensures workers maintain continuous tie-off as they move along the roofline.
- Permanent Lifelines: The 120-Foot Super Anchor Permanent HLL Kit offers a non-penetrating, permanent solution using 5-inch riser posts and non-penetrating seam clamps for long-term security.
- Other Substrates: For substrates other than 22- and 24-gauge steel, such as aluminum, copper, or stainless steel, the Ridge Pro Steep Assist system is the recommended alternative for roof slopes ranging from 6:12 to 12:12.
SMS Sheet Metal Supply SL-1.5 Panels (SSRA Compatible 22/24 ga. Steel)

The SL-1.5" panel is a versatile snaplock standing seam option for architectural and structural applications. Widely used across the construction industry, this panel combines durability and ease of installation, making it one of the most popular profiles. The SL-1.5 panel is clip-fastened to accommodate thermal expansion, ensuring long-lasting stability across varying conditions. It accommodates a minimum roof slope of 1.5:12, making it suitable for a wide range of roof configurations. Available in multiple premium materials, the SL-1.5 panel offers options such as 22- and 24-gauge steel and aluminum substrates with Kynar 500 finishes, G-90 galvanized, and Galvalume mill finishes, and architectural-grade copper. See the Roof Anchor Compatibility Chart for Sheet Metal Supply Ltd. (SMS) 22 Gauge and 24 Gauge SL-1.5 Snaplock Standing Seam Metal Roofing.
Fall Protection For SL-1.5 Panels:
Non-penetrating fall protection systems are essential for maintaining the structural integrity and aesthetic appeal of SL-1.5 panels while ensuring worker safety.
- 22/24 Gauge Steel: The SSRA1 Seam Anchor, SSRA2 Adjustable Roof Jack, and SSRA3 Anchor Plate are the most compatible and effective options. The SSRA1 Seam Anchor attaches directly to the panel seams without drilling, preserving the roof's watertight seal and providing secure tie-off points.
- Stability: The SSRA2 Adjustable Roof Jack enhances safety by supporting walkboards, creating a stable platform for workers to move across the roof.
- Temporary Lifelines: The SSRA3 Anchor Plate, paired with two SSRA1 Seam Anchors, supports the 100-Foot SSRA Temporary HLL Kit. This configuration allows workers to move freely while maintaining continuous tie-off.
- Permanent Lifelines: For long-term commercial installations, the 120-Foot Super Anchor Permanent HLL Kit utilizes 5-inch riser posts and non-penetrating clamps to ensure safety without compromising the roof's structural integrity.
- Alternative Substrates: For substrates other than 22- and 24-gauge steel, such as aluminum, copper, or stainless steel, the Ridge Pro Steep Assist system is the ideal alternative for roof slopes ranging from 6:12 to 12:12.
SMS Sheet Metal Supply SL-1.75 Panels (SSRA Compatible 22/24 ga. Steel)

The SL-1.75 panel is a versatile and robust snaplock standing seam option ideal for architectural and structural applications. Known for its ease of installation and adaptability, this panel is a favorite in the construction industry for its ability to accommodate diverse project needs. Designed to perform on roof slopes as low as ¾:12, its clip-fastened design allows for thermal expansion, ensuring long-lasting durability. This panel is available in premium materials, including 22- and 24-gauge steel, aluminum substrates with Kynar 500 color finishes, G-90 galvanized and Galvalume mill finishes, architectural-grade copper, and RHEINZINK architectural zinc. See the Roof Anchor Compatibility Chart for Sheet Metal Supply Ltd. (SMS) 22 Gauge and 24 Gauge SL-1.75 Snaplock Standing Seam Metal Roofing.
Fall Protection For SL-1.75 Panels:
Ensuring worker safety on SL-1.75 panels requires using fall protection systems that maintain the roof's integrity while providing secure tie-off points.
- 22/24 Gauge Steel: The SSRA1 Seam Anchor, SSRA2 Adjustable Roof Jack, and SSRA3 Anchor Plate are highly compatible solutions. The SSRA1 Seam Anchor securely clamps to the panel seams without drilling, preserving the roof's watertight seal.
- Stability: The SSRA2 Adjustable Roof Jack integrates with the SSRA1 to support walkboards, providing workers with a stable, safe platform.
- Temporary Lifelines: The 100-Foot SSRA Temporary HLL Kit enables workers to move securely along the roofline while maintaining continuous tie-off.
- Permanent Lifelines: For permanent commercial installations, the 120-Foot Super Anchor Permanent HLL Kit utilizes 5-inch riser posts and non-penetrating clamps to preserve the roof's warranty.
- Other Substrates: For aluminum, copper, or stainless steel, the Ridge Pro Steep Assist is the preferred solution for roof slopes between 6:12 and 12:12.
Generic Imports Vs. American-Made Reliability
Using unbranded, imported, or generic "look-alike" anchors on a high-performance Sheet Metal Supply (SMS) roof creates a legal and financial liability for your company. In the event of an accident, these unverified components can lead to OSHA fines, voided manufacturer warranties, and catastrophic legal consequences.
Because the SSRA1 is engineered, fabricated, and tested right here in the United States, we provide the comprehensive documentation you need to satisfy OSHA 1926.502 and ANSI standards. Overseas manufacturers often provide "self-certified" claims that crumble under legal scrutiny. Unlike these anonymous importers, we offer a dedicated American support staff ready to answer technical questions and assist with site-specific compliance.
Standing Seam Roof Anchor Compatibility for 22 Gauge Sheet Metal Supply Ltd. (SMS)
| ML-1 (22 Ga.) | ML-1.5 (22 Ga.) | ML-2 (22 Ga.) | SL-1 (22 Ga.) | SL-1.5 (22 Ga.) | SL-1.75 (22 Ga.) | |
|---|---|---|---|---|---|---|
SSRA 1![]() |
YES | YES | YES | YES | YES | YES |
SSRA1 Nylon Tip![]() |
YES | YES | YES | YES | YES | YES |
SSRA2 Roof Jack![]() |
YES | YES | YES | YES | YES | YES |
SSRA3 Anchor Plate![]() |
YES | YES | YES | YES | YES | YES |
The Ridge Pro![]() |
YES | YES | YES | YES | YES | YES |
Standing Seam Roof Anchor Compatibility for 24 Gauge Sheet Metal Supply Ltd. (SMS)
| ML-1 (24 Ga.) | ML-1.5 (24 Ga.) | ML-2 (24 Ga.) | SL-1 (24 Ga.) | SL-1.5 (24 Ga.) | SL-1.75 (24 Ga.) | |
|---|---|---|---|---|---|---|
SSRA 1![]() |
NO | NO | NO | NO | NO | NO |
SSRA1 Nylon Tip![]() |
YES | YES | YES | YES | YES | YES |
SSRA2 Roof Jack![]() |
YES | YES | YES | YES | YES | YES |
SSRA3 Anchor Plate![]() |
YES | YES | YES | YES | YES | YES |
The Ridge Pro![]() |
YES | YES | YES | YES | YES | YES |
Contact Us For More Information
For further details on roofing solutions and fall protection systems, contact us at [863-703-4522](tel:8637034522) or www.StandingSeamRoofAnchor.com. Let's work together to make your roofing projects safe, beautiful, and built to last. For more safety tips, check out OSHA's 48-page fall protection manual. Once you have determined the most suitable anchors for your roof system, download our free Anchor Inspection Form.
Safety Tips For Standing Seam Roofs
- Stick to Non-Penetrating Anchor Systems: Protect the SMS warranty and the building's watertightness by using non-penetrating anchors exclusively. These clamp-on systems attach directly to the seams without drilling. Avoid anchors that require placement over concealed clips, as locating them on a finished roof is difficult and time-consuming.
- Prioritize High-Traction Footwear: Metal surfaces become dangerously slick when wet, dusty, or icy. Mandate specialized roofing boots with non-slip soles to ensure maximum traction and stability, especially when navigating steep mechanical lock or snaplock profiles.
- Equip All Personnel with Trauma Relief Straps: Harness suspension can lead to life-threatening trauma in minutes. Ensure every worker's harness includes trauma straps that allow a fallen worker to stand and maintain circulation while awaiting rescue.
- Implement Site-Specific OSHA Safety Plans: Every SMS project requires a documented, OSHA-compliant safety plan. Your plan must include detailed fall-arrest methods, site-specific hazard assessments, and a clear emergency rescue protocol.
- Define Physical Work Zones with Barriers: On large or low-slope SMS roofs, use guardrails or warning lines to mark edges clearly. These physical barriers keep workers mindful of their proximity to the edge, allowing them to focus safely on the task at hand.
- Strictly Adhere to the 4-to-1 Ladder Rule: Safe roof access begins on the ground. Always ensure ladders sit on level surfaces and follow the 4-to-1 rule: pull the base out one foot for every four feet of height to prevent dangerous kick-outs.
- Invest in High-Quality, Comfortable Gear: Workers are far more likely to stay 100% tied off when their harnesses and lanyards fit correctly. Provide top-tier, OSHA-compliant equipment that balances durability with comfort.
- Install Permanent Anchors for Future Maintenance: For commercial buildings that require regular HVAC service, permanent anchor systems are a wise investment. They provide ready-to-use, reliable tie-off points that simplify safety protocols for years to come.
- Seek Specialist Advice for Curved Roof Panels: Radiused or curved SMS panels present unique engineering challenges. Before attempting to anchor to specialized designs, consult a fall protection expert to ensure the solution maintains both worker safety and structural integrity.
- Cultivate a Proactive Safety Culture: Safety is a core value, not a checklist. Foster open communication regarding site hazards, hold frequent toolbox talks, and build team accountability.
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 contact the roof panel manufacturer directly for inquiries about fall protection compatibility with their products and to address any potential warranty issues that may arise after installation of our products.





