The NZ Metal Roof and Wall Cladding Code of Practice is a comprehensive design & installation guide, and a recognised related document for Acceptable Solution E2/AS1 of the NZ Building Code.
COP v3.0:safety; working-roofs
Secure temporary access must be provided when there is no permanent access to roof areas. Preferred means of temporary access include scaffolding, constructed work platforms, or mobile elevating platforms.
Roofing material deteriorates over time. Before beginning any work on a roof, inspect the roof surfaces to determine its condition and identify weak spots (e.g., abnormal corrosion).
Weather conditions may affect working conditions adversely.
Adverse weather conditions include:
- moisture (dew, condensation, rain, or snow),
- high wind, and
- sun glare and UV radiation.