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.
Stop-ends are required at the upper end of all sheets, on horizontal metal wall cladding and at the lower edge of penetrations
Stop-ends for trapezoidal profiles are of two types, i.e. 'dog-eared' or 'pull-up'.
Stop-ending tools should be in good condition so that they do not mark the coating. This is particularly important when using pre-painted material. Vertical stop-ending for sinusoidal corrugate can be done by using an adjustable spanner, which has had the sharp edges removed. See 14.15C Corrugate Stop-ends.
- Slit all ribs to a length equivalent to their height.
- Cut away the tops of the ribs at a slight upwards angle and remove.
- Insert turn-up tool to full depth and turn up more than right angles.
- Knock dog's ears flat on a stop-end tool as shown.
- Ensure tray is lying flat
is ordered to provide an allowance for a full stop-end.