Render beads - what and where?

[Malc]

Hi,

What is the usual rendering beading?

I know house corners have corner beads and the lowest point of the render (or dpc) has bellcast. At the window reveals you have stop beads, are these just vertical or do they follow the sill line too? Is there a stop bead at the sill ends and under the sill? What about at the soffits and the verge? Does the render go under the soffit and verge and just taper out or would have a stop bead (and soffit fitted first)?

Also, I see that renderplas have a standard bead and powerbead which is bigger. When you you use the powerbead, anyone know?

Thanks