Final answer:
To work safely on a fragile roof, one should secure tarps using steel nails or elastics to provide stability and minimize risks.
Step-by-step explanation:
When working on a fragile roof, safety is paramount. The provided method suggests a process that includes securing tarps over the treatment area using steel nails or elastics to prevent falls or damage. Inserting and securing activated CS capsules under the covers using velcro attachments is a part of the pest control process described. Afterwards, empty capsules are recovered, and the covers are moved to the next section. This method emphasizes safety by reducing complexity, increasing productivity, and minimizing risk during the procedure.