Rough Plaster On Plasterboard

[antlee]

Hi, I am renovating my kitchen and my wife wants the rough undulating country look on the walls and ceilings, the walls were already dry lined when we bought the house and I have just re newed the ceiling boards, what covering can I use on the plasterboard to generate the look of undulatng render?, will sand and cement be to heavy?,will I have to pirme the boards prior to plastering them?, any ideas and technques would be very welcomed.
Thanks

[kbrownie]

Hi, try adding silica or plastering sand to mix it's trial and error so do sample boards first. A wooden float might help with the rustic look.
Plasterbords in general don't need pva as pva is used as a sealant for dry walls that have heavy suction and take moisture from mix.
KB