Fall Protection For Union Corrugating Standing Seam Roofs

Fall Protection For Union Corrugating Standing Seam Roofs

Posted by Howie Scarboro - CEO Fall Protection Distributors, LLC on Mar 13th 2026

See the Roof Anchor Compatibility Chart for Union Corrugating Company Standing Seam Panels.

The official brand mark of Union Corrugating Company, representing over 75 years of integrity and manufacturing excellence in the metal roofing industry. Courtesy of www.UnionCorrugating.com.

Who Is Union Corrugating Company?

J.E. Union was founded in 1946 in Fayetteville, North Carolina, with a single manual corrugating machine. Times were tough, yet the company pushed forward as a small, hardworking supplier serving local builders and homeowners. Everything changed in 1954 when Hurricane Hazel devastated eastern North Carolina. With thousands of roofs destroyed and materials scarce, Union Corrugating became the only metal roofing supplier in the region capable of meeting the sudden demand. Instead of raising prices during the crisis, J.E. Union held firm on fair and honest pricing. That decision cemented the company's reputation for integrity and values that still define the business today.

Union Corrugating has since grown into a major manufacturer with ten production facilities across the central and eastern United States. Their panels cover homes, farms, commercial buildings, and industrial facilities in nearly every climate zone. The company built its name on durability, consistency, and efficient delivery, and its signature quick-ship system gets metal roofing to customers faster than many competitors can match. Union Corrugating's modern lineup includes standing seam panels, exposed-fastener profiles, trims, and accessories engineered for long service life, energy savings, and dependable performance. Contractors continue to rely on their products because they arrive on time, fit correctly, and withstand decades of weather.


Non-Penetrating Fall Protection Solutions Are Critical For Union Corrugating Standing Seam Systems

Workers stay safer on Union Corrugating panels when they use non-penetrating anchors that protect the seam profile and maintain the roof warranty. Union Corrugating standing seam systems rely on hidden clips, floating seams, and thermal expansion to protect the building below. Still, they require safety equipment that grips the seams without creating holes or weakening the weather-tight seal. Any seam penetrations can cause panel distortion, leaks, and warranty issues on Union Corrugating standing seam panels.

This article provides installers, safety managers, and building owners with a clear overview of the fall protection equipment that fits Union Corrugating's standing-seam profiles. It also explains why compatible anchors, horizontal lifeline systems, and steep-assist devices create a safer workflow from the first ladder step to the final piece of trim. You will see a breakdown of Union's main standing-seam profiles and the most compatible fall-protection solutions for each. When the appropriate anchors match the panel, workers stay properly tied off, and OSHA compliance becomes easier.

  • SSRA1 Standing Seam Roof Anchor: The foundation of the system. This anchor attaches to the seam with stainless-steel set screws at low torque, providing a 5,000-lb certified tie-off point.
  • SSRA2 Adjustable Roof Jack Adapters: Mount directly to SSRA1 anchors to support ten-foot wooden walkboards, providing installers with a level work surface on steep metal roofs.
  • SSRA3 Anchor Plate: Heavy-duty aluminum plates that secure across two SSRA1 anchors to serve as certified endpoints for horizontal lifelines.
  • SSRA HLL 100-foot Temporary HLL Kit: A complete turnkey system for up to two workers in fall arrest, allowing safe lateral movement across wide spans.
  • Super Anchor 120-foot Permanent HLL Kit: An industry-exclusive galvanized steel cable solution for roofs requiring regular maintenance without penetrations.
  • Ridge Pro Steep Assist Anchor: A ridge-mounted anchor for initial access and safety on 6:12 to 12:12 pitches, providing 100% tie-off from the ladder to the ridge.

Proper Attachment: Set-Screws and Torque Requirements

  • Cupped-Tip Stainless Steel Set-Screws: Use these screws exclusively on 22-gauge steel panels. Torque these screws to 90 inch-pounds.
  • Nylon-Tipped Set-Screws: Apply these tips to 22-gauge or 24-gauge steel panels to achieve certified holding power without marking the finish. Torque these screws to 180-200 inch-pounds.
  • Maintenance: Treat nylon tips as consumables. Replace these tips every 3 to 5 uses to maintain maximum grip strength.

CRITICAL WARNING: NO IMPACT GUNS

Never use an impact gun to install set-screws. Over-torquing with an impact driver crushes the standing-seam rib. This installation error damages the anchor hardware, compromises worker safety, and voids the Union Corrugating manufacturer's warranty. Always use a calibrated torque wrench for final installation.


Union Corrugating ML200 Mechanical Panel (SSRA Compatible 22/24 ga. Steel)

The Union Corrugating ML200 Panel is a 2-inch tall mechanically seamed structural system engineered for demanding commercial and industrial environments. Courtesy of www.UnionCorrugating.com.

The ML200 panel delivers structural strength with a tall 2-inch rib and a fully seamed profile for demanding commercial environments. Union Corrugating's ML200 profile gives architects and contractors a strong mechanically seamed option for school roofs, shopping centers, banks, hotels, offices, and other commercial structures where long-term weather performance matters. This system forms a 2-inch vertical rib that increases wind uplift strength and creates a clean architectural appearance. Union Corrugating offers the ML200 in 22-gauge steel, 24-gauge steel, and .032 aluminum. The profile is available in 12-, 14-, 16-, and 18-inch widths, and panel lengths can reach up to 50 feet. See the Roof Anchor Compatibility Chart for Union Corrugating Company ML200 Mechanical Standing Seam Panels.

Fall Protection for ML200 Panels

  • SSRA1 Standing Seam Roof Anchor: The primary non-penetrating tie-off point for straight 22-gauge or 24-gauge steel panels.
  • SSRA2 Adjustable Roof Jack Adapters: Mounts to SSRA1 anchors to support ten-foot walkboards for a stable work platform.
  • SSRA3 Anchor Plates: Provides mounting locations for temporary horizontal lifeline systems.
  • SSRA HLL 100-foot Temporary Horizontal Lifeline Kit: Provides fall arrest coverage for up to two workers on larger roof runs.
  • Super Anchor 120-foot Permanent Horizontal Lifeline Kit: A permanent galvanized steel cable solution for year-round maintenance access.
  • Ridge Pro Steep Assist Anchor: Required for aluminum versions of the ML200 panel (Slopes 6:12 to 12:12).

Union Corrugating ML150 Mechanical Panel (SSRA Compatible 22/24 ga. Steel)

The Union Corrugating ML150 Panel offers architectural flexibility with a 1.5-inch vertical rib, suitable for complex roof layouts and radius applications. Courtesy of www.UnionCorrugating.com.

The ML150 panel blends architectural flexibility with a 1.5-inch seam profile that performs well on detailed commercial roof designs. Union Corrugating's ML150 standing-seam system offers contractors an architectural option that accommodates complex roof layouts without sacrificing long-term performance. The panel forms a 1.5-inch vertical rib and is available in 12-, 16-, 18-, and 20-inch widths. Union offers the ML150 in 22-gauge and 24-gauge steel and .032 aluminum. The profile can be curved to a specified radius for applications. See the Roof Anchor Compatibility Chart for Union Corrugating Company ML150 Mechanical Standing Seam Panels.

Fall Protection For ML150 Panels

  • SSRA1 Standing Seam Roof Anchor: Provides a non-penetrating tie-off point for straight 22-gauge or 24-gauge steel ML150 panels.
  • SSRA2 Adjustable Roof Jack Adapters: Mount directly to SSRA1 anchors to support 10-foot walkboards.
  • SSRA3 Anchor Plates: Essential for mounting temporary horizontal lifelines to allow worker mobility.
  • SSRA HLL 100-foot Temporary Horizontal Lifeline Kit: Includes anchors, plates, and lifeline for a complete OSHA-compliant setup.
  • Super Anchor 120-foot Permanent Horizontal Lifeline Kit: Long-term tie-off solution that eliminates repeated setup time.
  • Ridge Pro Steep Assist Anchor: The safest non-penetrating option for aluminum ML150 panels.

CRITICAL WARNING: You must perform additional safety planning for curved ML150 panels. Radius panels behave differently under load, so a trained safety professional must evaluate the system before developing the safety plan.


Union Corrugating SL150 Snaplock Panel (SSRA Compatible 24 ga. Steel)

The Union Corrugating SL150 Panel is a modern snaplock option providing a clean vertical shadow line for residential and light commercial projects. Courtesy of www.UnionCorrugating.com.

The SL150 panel blends a tall seam with snaplock simplicity to deliver strength, clean lines, and dependable weather performance. Union Corrugating's SL150 profile is a modern snaplock option that works well on residential roofs, agricultural structures, and light commercial buildings. The panel spans 16 inches, features a 1.5-inch rib, and is available in 24-gauge or 26-gauge steel. See the Roof Anchor Compatibility Chart for Union Corrugating Company SL150 Snaplock Standing Seam Panels.

Fall Protection For SL150 Panels

  • SSRA1 Standing Seam Roof Anchor: Non-penetrating attachment for straight 24-gauge steel panels.
  • SSRA2 Adjustable Roof Jack Adapters: Provides a level working surface on steep SL150 roofs when used with 10-foot walkboards.
  • SSRA3 Anchor Plates: Converts the system into an endpoint for temporary horizontal lifelines.
  • SSRA HLL 100-foot Temporary Horizontal Lifeline Kit: Best for protecting multiple workers across long SL150 panel runs.
  • Super Anchor 120-foot Permanent Horizontal Lifeline Kit: Permanent solution for future inspections and maintenance.
  • Ridge Pro Steep Assist Anchor: Required for 26-gauge SL150 panels for 6:12 to 12:12 pitch roofs.

Union Corrugating SL175 Snaplock Panel (SSRA Compatible 24 ga. Steel)

The Union Corrugating SL175 Panel combines architectural style with structural strength using a 1.75-inch snaplock seam. Courtesy of www.UnionCorrugating.com.

The SL175 panel blends architectural style with light structural strength and installs easily with its snaplock standing-seam design. The panel is available in 16-inch and 18-inch widths with a 1.75-inch seam height that locks securely over concealed clips. Union produces this panel in 24-gauge steel with a minimum roof pitch of 1:12. See the Roof Anchor Compatibility Chart for Union Corrugating Company SL175 Snaplock Standing Seam Panels.

Fall Protection For SL175 Panels

  • SSRA1 Standing Seam Roof Anchor: Clamps to the 1.75-inch snaplock seam of straight 24-gauge steel panels.
  • SSRA2 Adjustable Roof Jack Adapters: Keep walkboards level and steady on steep SL175 roofs.
  • SSRA3 Anchor Plates: Used to mount the endpoints of temporary horizontal lifelines.
  • SSRA HLL 100-foot Temporary Horizontal Lifeline Kit: Turnkey fall protection for up to two workers in fall arrest.
  • Super Anchor 120-foot Permanent Horizontal Lifeline Kit: Permanent maintenance access without repeated setup.
  • Ridge Pro Steep Assist Anchor: Required for SL175 panels on pitches between 6:12 and 12:12.

Union Corrugating TS-324 Double-Lok Trapezoidal Panel (SSRA Compatible 24 ga. Steel)

The Union Corrugating TS-324 Double-Lok is a high-strength trapezoidal system designed for low-slope commercial applications and long-span capability. Courtesy of www.UnionCorrugating.com.

The TS-324 Double-Lok panel delivers high structural strength, a tall 3-inch seam, and long-span capability for low-slope commercial roofs. The profile forms a 3-inch-tall trapezoidal rib and is available in 18-inch or 24-inch coverage widths. Union Corrugating rolls this panel in 24-gauge steel, and workers can install it on slopes as low as 1:12. See the Roof Anchor Compatibility Chart for Union Corrugating Company TS-324 Double-Lok Trapezoidal Standing Seam Panels.

Fall Protection For TS-324 Double-Lok Panels

  • SSRA1 Standing Seam Roof Anchor: Clamps securely to the 3-inch trapezoidal rib of straight 24-gauge steel panels.
  • SSRA2 Adjustable Roof Jack Adapters: Compatible for walkboard staging on steep pitches.
  • SSRA3 Anchor Plates: Used to mount temporary horizontal lifelines.
  • SSRA HLL 100-foot Temporary Horizontal Lifeline Kit: Essential for mobility across larger TS-324 roof projects.
  • Super Anchor 120-foot Permanent Horizontal Lifeline Kit: Ideal for permanent maintenance access.
  • Ridge Pro Steep Assist Anchor: Required for steeper sections with slopes from 6:12 to 12:12.

Union Corrugating Slimline Nailstrip Panel (Ridge Pro Only)

The Union Corrugating Slimline Panel delivers a clean architectural look with a fast-install nailstrip system that eliminates the need for separate clips. Courtesy of www.UnionCorrugating.com.

The Slimline panel delivers a clean architectural look with a low 1-inch rib and a fast-install nailstrip system for residential and light-commercial roofs. The panel covers 16 inches per sheet and features an integrated fastening groove. Union offers it in 24-gauge or 26-gauge steel with a minimum roof pitch of 3:12. See the Roof Anchor Compatibility Chart for Union Corrugating Company Slimline Nailstrip Standing Seam Panels.

Fall Protection For Slimline Panels

  • Ridge Pro Steep Assist Anchor: The only recommended non-penetrating option. This anchor hooks over the ridge on slopes between 6:12 and 12:12.
  • Constraint: The nailstrip design does not support seam-mounted anchors; only ridge-based systems preserve the roof's performance.

Eliminating Compliance Gaps: Why Uncertified Imports Endanger Union Corrugating Projects

Many low-cost anchors flooding the market are manufactured with inferior alloys and lack the transparent, verifiable testing required for industrial-grade safety. These "knock-off" systems often rely on self-certification or generic documentation that doesn't account for the specific rib shapes and structural gauges found on Union Corrugating profiles. We replace that uncertainty by providing direct access to our 3rd-party, ISO 17025-accredited laboratory results. Our American-engineered SSRA hardware can withstand dynamic loads exceeding 5,000 lbs. By insisting on hardware backed by transparent domestic engineering and certified lab reports, you ensure that your fall protection is every bit as advanced and reliable as the Union Corrugating building envelope it protects.


Standing Seam Metal Roof Anchor Panel Compatibility Chart For Union Corrugating Company

  ML200 (22 Ga.) ML200 (24 Ga.) ML150 (22 Ga.) ML150 (24 Ga.)
SSRA 1
SSRA_1 Standing Seam Roof Anchor
YES NO YES NO
SSRA1 Nylon Tip
SSRA_1 Anchor Nylon Tip Standing Seam Roof Anchor
YES YES YES YES
SSRA2 Roof Jack
SSRA_2 Roof Jack Adapter
YES YES YES YES
SSRA3 Anchor Plate
SSRA_3 Anchor Plate
YES YES YES YES
The Ridge Pro
Ridge Pro Roof Anchor
YES YES YES YES

Standing Seam Metal Roof Anchor Panel Compatibility Chart For Union Corrugating Company Cont.

  SL150 (24 Ga.) SL175 (24 Ga.) TS324 (24 Ga.) Slimline Nailstrip
SSRA 1
SSRA_1 Standing Seam Roof Anchor
NO NO NO NO
SSRA1 Nylon Tip
SSRA_1 Anchor Nylon Tip Standing Seam Roof Anchor
YES YES YES NO
SSRA2 Roof Jack
SSRA_2 Roof Jack Adapter
YES YES YES NO
SSRA3 Anchor Plate
SSRA_3 Anchor Plate
YES YES YES NO
The Ridge Pro
Ridge Pro Roof Anchor
YES YES YES YES

Contact Us for Expert Standing Seam Fall Protection Advice

For expert guidance on standing seam roof anchors, lifeline kits, and fall protection systems, contact us today at 863-703-4522 or visit www.StandingSeamRoofAnchor.com. For continued learning, download OSHA's 48-page Fall Protection Manual and our free Anchor Inspection Form once you've selected the ideal anchors for your roof system.


Essential Safety Strategies for Standing Seam Metal Roofing Contractors

  • Mandate Cleaning Protocols: Before locking down an SSRA1 Standing Seam Roof Anchor, verify the seam is free of grease, debris, or morning dew. Residual oils from the roll-forming process can reduce the grip of set screws. A quick wipe with a rag ensures the 5,000-lb. certified hold remains absolute, protecting the crew and the Union Corrugating finish.
  • Deploy Steep Slope Walkboard Staging: For pitches 6:12 and steeper, use SSRA2 Adjustable Roof Jack Adapters to stage 10-foot walkboards on standing seam roofs. Providing a level standing surface drastically reduces lower back fatigue and accidental slips.
  • Impact Wrench Warning: Over-tightening is as dangerous as under-tightening. Use a calibrated torque wrench for 90 inch pounds torque for stainless cupped tipped screws or 180 - 200 inch pounds for nylon tipped screws. This precision preserves the Union Corrugating thermal expansion clips.
  • Transition to Leading Edge SRLs: Standard lifelines are not enough when working around the sharp edges of Union Corrugating panels. Ensure every worker uses Leading Edge (LE)-rated Self-Retracting Lifelines. These products survive falls in which the cable or webbing might fray against the sharp edges of a metal panel.
  • Implement the First Man Up Rule: Transitioning from ladder to roof is high-risk. Use the Ridge Pro Steep Assist Anchor to establish a 100% tie-off point at the ridge before any worker steps off the ladder. This strategy allows for a safe, vertical lifeline descent down to the eaves, covering the entire work zone from the start.
  • Use Horizontal Lifelines for Maximum Worker Mobility: Install temporary horizontal lifeline systems, such as the SSRA HLL 100-foot Kit, to provide your crew with continuous, hands-free protection across large roof spans. These systems allow workers to move laterally along the Union Corrugating panels without constantly disconnecting and re-anchoring. Keep in mind that horizontal lifelines are limited to 4:12 pitch or less.
  • Standardize Trauma Strap Integration: Fall arrest is only half the battle. Suspension trauma can kill in minutes. Require Suspension Trauma Straps on every harness. If a worker falls, these straps allow them to stand up while hanging, relieving pressure on the femoral arteries and buying critical time for the rescue team to arrive.
  • Enforce Roofing Footwear: Smooth Galvalume and painted aluminum are slippery when dusty. Contractors should mandate roofing-specific boots with rubber soles. These sticky soles provide maximum friction on Union Corrugating architectural coatings, preventing slips before they occur.
  • Establish Permanent Maintenance Lifelines: If the building requires routine HVAC or gutter service, consider installing a Super Anchor 120-foot Permanent HLL Kit. It protects the roof from damage caused by future contractors who might use the wrong anchors, and it keeps the building owner in permanent compliance with OSHA.
  • Conduct Daily Dynamic Load Tool Talks: Good safety managers lead a five-minute huddle every morning to review the day's specific roof hazards and tie-off points. Daily safety meetings ensure every worker understands the required safety protocols and hazards before stepping onto Union Corrugating panels.

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 regarding fall protection compatibility with their products and to address any potential warranty issues that may arise after installing our products.

Howie Scarboro, C.E.O. and co-founder of Fall Protection Distributors, L.L.C., recognized the need for continued improvements in roofing safety during the 2010 MetalCon show in Las Vegas. He joined forces with SnoBlox-Snojax, a leader in snow retention and seam clamping technology for metal roofs, to create the SSRA1 prototype. Tested by Gravitec for OSHA/ANSI certifications, the SSRA1 proved to be the industry's lightest, most robust, and most universal-fit anchor point for standing seam roofs. Fall Protection Distributors, L.L.C. was born in 2015, shaping the future of fall protection and instilling confidence in the industry.