Monorex over old brick

[Bones10]

I'm doing a old porch which was s&c rendered, doing it in parex monorex , just wondered if I should put some kind of base coat onto the bricks b4 starting as the walls are a bit crap? Or would it be ok to just crack on with it cheers

 

[owls]

crack being the optimum word, mesh it -tv 10,in parumrex with lanko, prior to monorex.