Safety on industrial roofs is a major concern for building owners, maintenance managers, safety coordinators, and installation companies. When working at height, it’s common to consider which protection system is most suitable: installing a lifeline or incorporating a safe access walkway.
However, this comparison is often incomplete. In many projects, a lifeline is installed as the sole safety measure , without considering how workers will move across the roof to access equipment, solar panels, air conditioning, or maintenance areas.
In this article we analyze the differences between a conventional lifeline and a CAREX safe passage system using technical walkways, explaining when to use each solution and why in many cases both technologies should work in a complementary way.
What is a lifeline?
A lifeline is a fall protection system designed to allow workers to connect via a harness and move around an area with a risk of falling.
Its main function is:
- Avoid falls into the void.
- Limit the fall distance.
- Protect the worker in case of an accident.
Lifelines can be:
- Across.
- Verticals.
- Permanent.
- Temporary.
Although they are essential safety elements, they are not designed to protect the deck or to facilitate regular traffic on it.
What is a CAREX technical walkway?
CAREX is a modular safe transit system designed to create permanent routes on industrial roofs.
Its objective is:
- Channel the displacements.
- Protect sensitive areas of the deck.
- Avoid stepping directly on fragile items.
- Improve the ergonomics of maintenance work.
- Reduce the risk of slips and trips.
Unlike a lifeline, CAREX doesn’t act as a fall arrest system, but rather as a safe circulation infrastructure that minimizes exposure to risk. Discover more about what a technical corridor is and when to install it.
The fundamental difference: protecting versus avoiding risk
There is a key difference between the two solutions.
Lifeline
The lifeline provides protection when an accident occurs.
That is to say:
-
- The worker may fall.
- The system limits the consequences.
- The protection comes into play once the incident has occurred.
CAREX
The technical corridor aims to prevent the accident from happening.
Thanks to:
-
- Non-slip surfaces.
- Defined routes.
- Stable traffic.
- Protection of fragile areas.
The preventive philosophy consists of reducing the probability of a fall occurring from the beginning.
Learn about regulations for working at heights here
Problems with using only lifelines
Many industrial roofs have only one lifeline.
Although this improves security, several problems may arise.
Footsteps on sensitive areas
Workers must be able to move freely across the roof to reach:
-
- Air conditioning equipment.
- Photovoltaic inverters.
- Ducts.
- Skylights. Is a skylight the same as a roof window?
- Solar panels.
This can cause:
-
- Damage to the waterproofing.
- Deformations of the roof.
- Breakage of fragile elements.
Increased wear on the roof
When there are no defined routes:
-
- Each operator follows different routes.
- Transit zones are constantly changing.
- The overall wear and tear on the roof increases.
Over the years this can lead to costly repairs.
Risk of slipping
Even if the worker is connected to a lifeline:
-
- He may stumble.
- It can slip.
- You may suffer injuries before the fall arrest system comes into play.
The fall can be stopped, but the accident has already happened.
We’ve included a guide here: Complete guide to safety on fragile decks
Advantages of combining CAREX with lifelines
The current best practice in industrial roofing is to combine both solutions.
Level 1: Prevention
CAREX provides:
-
- Safe routes.
- Controlled traffic.
- Roof protection.
- Reduced exposure to risk.
Level 2: protection
The lifeline provides:
-
- Fall arrest system.
- Additional protection in risk areas.
- Compliance with safety requirements.
This creates a much more comprehensive protection strategy.
Applications where CAREX provides a clear advantage
Photovoltaic roofs
In industrial solar installations, it is common to perform the following:
-
- Inspections.
- Cleaning.
- Thermography.
- Module replacement.
Walking directly between panels increases the risk of damage and accidents.
Technical walkways allow for the creation of permanent maintenance corridors. How can solar panel maintenance be performed without stepping on the modules?
Air-conditioned roofs
HVAC equipment, exhaust fans, and chillers require periodic inspections.
CAREX facilitates repetitive access without damaging the roof.
Roofs with skylights
Skylights represent one of the greatest risks of falling debris on industrial roofs.
The defined routes allow traffic to be diverted away from these critical areas.
Comparison of CAREX vs lifeline without technical corridor
| Aspect | Lifeline | CAREX |
|---|---|---|
| Prevent falls | No | It significantly reduces the risk |
| It stops a fall | Yes | No |
| Protect the roof | No | Yes |
| Define safe routes | No | Yes |
| Reduces wear on the roof | No | Yes |
| Facilitates repetitive maintenance | Limited | Yes |
| Protects photovoltaic installations | No | Yes |
| Improves work ergonomics | Limited | Yes |
| Reduce footsteps outside of safe areas | No | Yes |
Which solution to choose?
The answer depends on the use of the roof.
If access is very occasional and there is little traffic, a lifeline may be sufficient to meet safety requirements.
However, when they exist:
- Recurring maintenance work.
- Photovoltaic installations.
- Air conditioning equipment.
- Fragile roofs.
- Frequently accessed areas.
Incorporating a safe transit system like CAREX provides far superior operational and preventative advantages.
In most modern industrial projects, the most effective solution is to combine lifelines and technical walkways, creating a safer, more accessible, and maintenance-ready roof throughout the installation’s lifespan.
frequently asked questions
Does a lifeline replace a technical walkway?
No. Both systems have different and complementary functions.
Is CAREX a fall protection system?
No. CAREX is a safe transit system designed to reduce exposure to risk and protect the roof.
Can CAREX be installed next to a lifeline?
Yes. In fact, it is one of the most recommended configurations for industrial and photovoltaic roofs.
Which solution is best for solar installations?
The combination of CAREX technical corridors and collective or individual protection systems usually provides the best results in safety and maintenance.
Does CAREX help prevent damage to solar panels?
Yes. It allows for the establishment of permanent routes so that operators do not have to walk on the modules or on sensitive areas of the roof.
