Updated: 11th December 2025
For buildings that require regular rooftop access, a reliable fall protection system isn’t a “nice to have” – it’s essential. Operatives working near roof edges, plant, or fragile areas must be fully protected in line with the Work at Height Regulations 2005, without compromising the function of the building or its roof build-up.
Kee Line is a market-leading horizontal lifeline system, designed by Kee Safety, that provides safe, continuous access for operatives working at height. As Work at Height specialists, Heightsafe design, install, test, and maintain Kee Line systems nationwide – helping clients create safe, compliant rooftop environments across the UK.
Kee Line is a high-specification horizontal lifeline system used for fall restraint and fall arrest on rooftops and elevated work areas. It allows operatives to connect to a secure cable system via a harness and lanyard, moving freely along the line whilst remaining safely attached at all times.
Key characteristics include:
A stainless steel wire lifeline running across designated roof routes
Specialist anchor posts designed to deform under load, controlling forces during a fall
Intermediate brackets that allow travellers to pass smoothly around corners and obstacles
Configurable layouts designed for restraint (preventative) or arrest (protective) applications
Suitable for:
Flat and low-pitched roofs
Membrane, metal profile, concrete, and composite roofs
Buildings with regular rooftop access for maintenance, inspections, or plant servicing
Heightsafe’s role is to ensure systems are correctly designed, installed, and maintained so they perform when needed most.
Kee Line incorporates several design features that make it a powerful and flexible fall protection solution:
Stainless Steel Wire Lifeline – Corrosion-resistant, long-lasting lifeline cable.
Engineered Anchor Posts – Progressive deformation under load to absorb energy and control forces.
Smooth Traveller Movement – Purpose-designed intermediates allow the user’s traveller to pass around corners without disconnecting.
Multi-User Capability – Systems can be designed to support multiple users at once (subject to configuration).
Low-Profile Appearance – Posts and cable are discreet, ideal for buildings where visual impact must be managed.
Modular Design – Flexible configuration options that can navigate complex roof layouts.
Combined, these features make Kee Line a strong choice for clients who need safe, practical, and long-lasting rooftop fall protection.
Kee Line systems are used across a wide range of buildings and sectors, including:
Commercial buildings – office rooftops, business parks, and mixed-use developments
Industrial facilities – manufacturing plants, refineries, and process facilities
Warehouses and distribution centres – large-span roofs requiring regular inspection and maintenance
Retail and leisure properties – shopping centres, hotels, and stadiums
Public sector buildings – hospitals, schools, universities, and civic buildings
Residential blocks – rooftop plant access and façade maintenance
If your teams need to access roof plant, HVAC systems, solar arrays, gutters, or façades near an unprotected edge, Kee Line is a strong candidate for your fall protection strategy.
Choosing Kee Line through Heightsafe gives you the combined benefit of a leading product and an experienced installation and maintenance partner. You gain:
Specialist Work at Height expertise developed since 2009
A team that understands Kee Line design, installation, and testing in detail
Nationwide coverage for surveys, installation, and inspection
Competitive pricing and efficient project delivery
Support for single sites or large national portfolios
A complete service – from initial design to ongoing recertification
We ensure your system is not just installed – but is supported throughout its life.
Different roof constructions require different approaches. Heightsafe designs and installs Kee Line systems for a range of substrates:
Systems for Membrane Roofs
Kee Line can be mounted on membrane roofs using specially-designed base plates and posts that:
Spread the load over a larger area
Protect the waterproofing system
Maintain roof performance
Systems for Metal Profile Roofs
On metal profile roofs, Kee Line can be installed using:
Specialist clamps or brackets
Configurations that avoid excessive drilling or penetration
This allows safe fall protection without compromising the roof’s integrity.
Systems for Concrete Roofs
Concrete roofs can support Kee Line via:
Mechanical anchors
Chemical anchors (resin fixings)
Fixings are designed and specified to safely transfer fall loads into the structure.
Non-Penetrative / Freestanding Options
In situations where roof penetration is not acceptable (e.g., warranty restrictions, heritage considerations), Kee Line can be integrated with freestanding anchor systems to provide non-invasive fall protection.
This allows compliance to be achieved without cutting into the roof itself.
If your building requires safe, compliant rooftop access, a Kee Line horizontal lifeline system designed and maintained by Heightsafe is a proven way to protect your operatives and meet your legal obligations.
Contact Heightsafe today to discuss Kee Line fall protection for your building. Our specialists will survey your site and design a system tailored to your roof, your maintenance needs, and your compliance responsibilities.
Kee Line has become a trusted name in the fall protection industry for good reason. It offers a combination of engineering quality, flexibility, and long-term durability that makes it ideal for demanding rooftop environments.
Industry-Leading Safety Performance
Engineered to provide secure, continuous fall protection along the full length of a route. Operatives can move safely around the roof while always remaining attached to the system.
In the event of a fall, energy absorbers and deforming anchor posts help to:
This engineered performance makes Kee Line a robust and reliable solution for both restraint and arrest configurations.
Versatile for Different Roof Types
Designed to work across a wide variety of roof constructions, including:
Different base details and fixing methods are available to suit each roof type, ensuring compliance and structural integrity.
Minimal Roof Impact
Where possible, Kee Line posts and bases are designed to:
In some applications, systems can be used alongside non-penetrative anchorage solutions (such as Kee Anchor) to maintain roof warranties and avoid compromising the waterproof envelope.
Designed for Both Restraint and Arrest
Systems can be configured to either:
Heightsafe will design your system in line with your activities, access patterns, and risk profile – providing a safe solution tailored to how your roof is actually used.
Tested to International Safety Standards
Systems are tested and certified to internationally recognised standards, including:
This ensures the system meets the necessary safety and performance criteria for UK use.
Once installed, Kee Line systems must be regularly inspected and tested to remain compliant and safe.
Inspection Frequency
Typically:
Extra inspections may be required after:
What Testing Includes
Heightsafe’s inspection services include:
Following inspection, we provide:
Planned Maintenance
Many clients enrol in Heightsafe’s planned maintenance programmes, ensuring:
This proactive approach keeps your system ready for safe use all year round.
Get in touch with Heightsafe’s friendly, professional team today for free, no obligation advice on your Work at Height compliance requirements.
Simply complete the below and one of our experts will be in touch.
