Sure-Flex PVC Heat Weldable Walkway Roll is designed to protect the PVC membrane in those areas exposed to repetitive foot traffic and other hazards. It provide a defined path to walk on for those servicing and repairing HVAC systems and other rooftop equipment found on low-slope roofs. It must be installed at all traffic concentration points (i.e. roof hatches, access doors, rooftop ladders, etc.) regardless of traffic frequency. Walkways must also be installed if regular maintenance (once a month or more) is necessary to service rooftop equipment.