Repairing rendering on wall

If the wall moves, it will crack. Putting EML on will simply move the position of the crack. So no imho.

Matter of opinion really. PVA isnt waterproof. Its mainly useful if the substrate's cumbling, but if it is you should really cut back to sound material.

Some walls move and crack, and need repair from time to time. Its unlikely that one can stop it, unless by simple measures such as fixing pointing.

NT

No to both, I'd just render it, but if you make sure to remove as much render as appears loose, so you are working up to a soundly attached edge, the repair will last longer. Don't take that too literally or you'll have a bare wall before you know it.

Cheers Richard

Try SBR instead of pva

It helps if you can undercut the edge too ...

Sorry but I may have misled you all. It is just the render that has cracked as far as I can tell. The last couple of years of frost have caused the render to break away. I will give it a go with some more render and see how it goes.

Yes, I understood what you meant ;-)

Cheers Richard