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Rooftop work comes with serious risks. That’s why having a reliable fall protection system like Kee Line® is essential when collective safety measures aren’t an option. Kee Line® is a leading horizontal lifeline system designed to provide continuous fall protection where collective options like guardrails aren’t possible. In this guide, we break down how Kee Line works and why it’s a trusted safety solution for hands-free fall protection.
What Is Kee Line?
Kee Line is a wire-based horizontal lifeline system that allows for fall restraint and fall arrest. It’s ideal for rooftops where traditional safety barriers aren’t practical—such as curved surfaces or buildings with strict aesthetic or structural requirements. This discreet, virtually invisible safety lifeline system runs parallel to a fall hazard, typically the roof edge, and supports hands-free safety for maintenance teams and contractors.
Designed for use with full-body harnesses, energy-absorbing lanyards, or self-retracting lifelines, Kee Line provides uninterrupted safety for up to three users at once. The key benefit? Workers stay attached and mobile, ensuring maximum safety without restricting their movement.
How Kee Line Enables Hands-Free Fall Protection
Continuous Protection with Every Step
The heart of Kee Line’s functionality is its traveller device—a smooth-gliding connector that attaches to the stainless steel cable. This more agile, innovative traveller allows users to move freely along the entire system, including around corners and past intermediate brackets, without ever disconnecting. It’s the definition of hands free fall protection.
Engineered for Safety and Flexibility
The safety line is made of 8mm grade 316 stainless steel cable, designed to span up to 12 metres between support posts. These posts, along with the intermediate brackets, can be configured to suit a wide range of roof structures including standing seam, steel cladding panels, and membrane-covered roofs. The system also integrates with Postanka anchors where mounting directly to the building structure is required.
Whether your site has solid parapet walls or sloped metal panels, Kee Line adapts without compromising safety.
Fall Arrest in Action: The Progressive Absorbing System
If a fall occurs, the system’s shock absorbers and support posts deploy to limit load impact to below 10kN. This Progressive Absorbing System minimises shock loading to both the user and the building structure, helping to reduce injury and structural damage. It’s a key feature that makes Kee Line a reliable fall protection solution.
Key Features That Ensure Maximum Safety
- Fall Arrest and Fall Restraint: Supports both modes depending on system layout.
- Up to Three Users: Kee Line accommodates up to three users simultaneously.
- Modular and Scalable: Easy to design for long spans or complex roof layouts.
- Fully Compliant: Meets EN 795:2012 and CEN TS 16415:2013 standards.
- Low Profile, High Performance: The horizontal lifeline blends with building aesthetics while delivering uninterrupted safety.
When to Choose Kee Line Over Collective Protection
While collective protection like guardrails is often preferred, it’s not always feasible. For buildings with fragile surfaces, restricted space, or architectural constraints, Kee Line provides safe access without the visual or structural impact of larger safety barriers.
If your team performs regular maintenance near the roof edge or needs access over complex layouts, a horizontal lifeline system like Kee Line may be the better fit.
Built with Purpose: A Look at System Components
Support Posts and Intermediate Brackets
Support posts are installed at system endpoints and corners, while intermediate brackets guide the line and allow smooth passage of the traveller. These components are available in designs to match roof types including steel cladding panels and membrane roofs.
Shock Absorbers
Each end of the lifeline includes a shock absorber that activates in the event of a fall. These elements work with the support posts to reduce load impact.
Traveller and Lifeline Cable
The traveller runs smoothly along the 8mm safety line, even around corners, enabling hands free movement throughout the system.
Safe Installation and Long-Term Use
Harcon provides full design, installation, and maintenance services for Kee Line. Our in-house team ensures your Kee Line system is installed in accordance with all safety guidelines and remains compliant through regular inspections.
For added assurance, the system includes signage, pre-use check guidance, and training on proper use. This helps site teams confidently maintain both safety and compliance.
Conclusion: Is Kee Line Right for You?
If you’re looking for a hands free safety solution that provides continuous fall protection without interfering with building design, Kee Line is a proven choice. From its progressive absorbing system to its discreet, high-strength cable and smart traveller, every part of the system is designed for reliable fall protection.
To discuss your project or learn more about our rooftop safety systems, get in touch with the Harcon team today.
Need to know more about fall arrest or horizontal lifeline systems? Explore our blog section for fall protection system insights and case studies, or contact us for personalised support.
Frequently Asked Questions About Kee Line Safety Lifeline Systems
1. What type of fall protection system is Kee Line?
Kee Line is a horizontal lifeline system designed for both fall arrest and fall restraint. It offers continuous protection for up to three users working near a fall hazard, especially where collective protection such as guardrails isn’t practical.
2. How does Kee Line provide hands free safety?
Once connected, users can move freely along the safety line using the traveller device, even around corners and past intermediate brackets, without disconnecting. This enables full hands free movement, making Kee Line ideal for tasks that require agility and uninterrupted safety.
3. What happens if someone falls while using Kee Line?
Kee Line uses a progressive absorbing system that includes shock absorbers and support posts. If a fall occurs, these components deploy to reduce the load impact below 10kN, helping to protect both the user and the building structure.
4. Can Kee Line be installed on different roof types?
Yes. Kee Line is compatible with various surfaces including steel cladding panels, standing seam roofs, and membrane systems. The system is modular and adaptable, making it suitable for both flat and pitched roofs with or without solid parapet walls.
5. How many users can be connected to the lifeline system at once?
The Kee Line horizontal lifeline system supports up to three users at the same time, depending on the system layout and installation design. This makes it a flexible fall protection system for teams working at height.
6. Is Kee Line a discreet option for rooftop safety?
Absolutely. Kee Line is a discreet, virtually invisible solution when compared to larger safety barriers. It’s especially useful on roofs where visual impact needs to be minimal, while still ensuring maximum safety and compliance with EN standards.