Kee Line Rooftop Safety Lifeline System

Kee Line is a wire-based horizontal lifeline system installed on rooftops and elevated structures. Users attach to a travelling runner (also called a traveller or shuttle) and can move along the line without ever needing to disconnect.

Kee Line is classed as a Type C flexible anchor line under EN 795, meaning it provides a continuous horizontal attachment route between certified end anchors.

Depending on your working method and PPE setup, Kee Line can be configured for:

• Fall restraint (preventing the fall from occurring), or
• Fall arrest (stopping the fall if one occurs).

Suitable roof types

Kee Line can be installed on most common UK roof structures after survey, including:

• Membrane roofs
• Standing seam roofs
• Metal profile roofs
• Composite panel roofs
• Parapet and structural steel systems

Continuous, Hands-Free Movement

Kee Line eliminates the need for repeated clipping and unclipping. Workers remain attached at all times, helping reduce unsafe behaviours and improving productivity.

Energy-Absorbing Fall Protection

Unlike standard cable systems, Kee Line integrates PAS energy absorption. If a fall occurs, shock absorbers and support elements deploy progressively to reduce peak loads on both the worker and the roof structure.

Discreet, Low-Profile Installation

Kee Line is recognised for its minimal visual impact. It delivers strong protection without compromising roof appearance — especially valuable on commercial or public-facing buildings.

Versatile Across Roof Structures

With a wide range of fixings and posts, Kee Line can be adapted to most roof types and layouts after professional survey and design.

Cost-Effective Where Guardrails Aren’t Practical

When edge protection isn’t feasible due to roof layout, access frequency, or budget, Kee Line provides a compliant personal fall protection alternative.

A certified Kee Line rooftop lifeline typically includes:

• 8mm grade 316 stainless steel cable forming the primary lifeline.
• End anchors that secure and tension the system.
• Intermediate brackets/posts that support the line along long runs and allow the traveller to pass.
• Corner units for direction changes without compromising travel.
• Progressive Absorbing System (PAS) energy absorbers, integrated into posts and brackets to reduce impact forces during a fall.
• Traveller/runner that provides smooth, continuous user attachment.
• Compatible PPE (harness to EN 361; lanyards/absorbers EN 355 or SRLs EN 360), selected to suit restraint or arrest use.

Kee Line components are engineered to work as a system — meaning correct design, spacing, and installation are essential for compliance and performance.

Kee Line rooftop lifelines are commonly installed wherever roof access is required for routine or specialist tasks, including:

Facilities management and rooftop maintenance: Safe routes to HVAC units, vents, gutters, and rooftop plant.

Industrial and logistics roofs: Large roof spans and regular contractor access.

Solar PV installation and servicing: Keeps installers protected while working along panel arrays.

Fragile roof zones and rooflight areas: Often combined with rooflight protection and walkways to control fragile surface risk.

Complex roof layouts: Ideal where edge protection isn’t practical due to obstructions, parapets, or access constraints.

Legal Requirements

Kee Line systems support compliance under the Work at Height Regulations 2005, which require employers to prevent falls from height and maintain safety equipment properly.

Standards Kee Line Aligns With

• BS EN 795:2012 (Type C) for horizontal flexible anchor lines.
• PD CEN/TS 16415 where multi-user configurations apply.
• BS EN 365 for inspection and periodic examination requirements.

Inspection and Recertification

Kee Line lifelines must be inspected and recertified at least every 12 months by a competent person, with more frequent inspections recommended for high-use or harsh environments.

Safesite provides full lifeline testing, tension checks, component inspection, and certification, ensuring your Kee Line system remains safe and audit-ready.

Kee Line vs Guardrails (Edge Protection)

• Guardrails provide collective protection and prevent falls entirely.
• Kee Line provides personal protection where guardrails aren’t feasible, allowing safe movement with continuous attachment.

Kee Line vs Kee Track Rigid Rail

• Kee Track overhead rigid rails are best for indoor or low-clearance environments.
• Kee Line is ideal for rooftops and long horizontal runs where cable systems fit the environment.

Safesite will always recommend the solution that best matches HSE’s hierarchy of control and your site realities.

Survey & Risk Assessment

We start with a detailed site survey to identify hazards, roof structure, fragile zones, access routes, and rescue requirements.

Design & Specification

Our engineers design a bespoke Kee Line route including:

• Cable runs and corners
• Post spacing and span lengths
• User numbers and working method
• Restraint vs arrest configuration

Installation

Kee Line systems are installed by Safesite’s certified engineers in line with Kee Safety specifications and BS EN requirements, minimising disruption to your building operations.

Training

We provide practical training so your teams understand safe use, pre-use checks, and rooftop working best practice.

Annual Inspection & Recertification

Safesite manages your lifelong compliance with annual inspection, tension verification, repairs when needed, and re-certification documentation.