There are many factors to consider when answering this question.
- Safety mesh needs to comply with the Australian Standard AS/NZS 4389 Safety Mesh, which specifies the minimum requirement for the design, construction, testing and installation of the product.
- It needs to be structurally sound and show no signs of corrosion.
- The method of installation must also comply. Is it securely connected, overlapped and joined in order to arrest a fall?
For quick reference have prepared a whitepaper, “The Myths of Safety Mesh” which gives more details of your requirements. In addition, the Compliance Code, Prevention of Falls in General Construction should be referred to when determining the suitability and compliance of your safety mesh.