A walkway can provide access to the work area, but if the roof on one or both sides of the walkway is fragile, further protective measures are required. Cable based fall protection systems can be used in these circumstances although these type of systems do not stop the operative from falling through the fragile material but arrest this fall once it has happened, leaving the operative suspended in their harness requiring a rescue procedure to be carried out.  Fall proof covers provide passive collective protection and eliminate the fall hazard completely, plus there is no need for training or specialist PPE is required to use the system therefore removing the possibility of user error. Fall proof covers can be used adjacent to walkways, on flat or pitched fragile roofs, or up against northern lights; to prevent the operative falling through the fragile roof material. A red plank at the top, in addition to the appropriate signage, accentuates the fact that they are a safe product.