Villaboard ceiling

[MasterOfNone]

Hi all,
I have lined my alfresco area ceiling with Villaboard and i am wondering what the best method of plastering the joins(all rebated)? should i use the joining tape and base and top coat for interior plasterboard or the tape for cement sheet and external jointing compounds? ceiling will be painted, also there is a blue boarded beams along two sides of the alfresco area so this should act as a weather stop.

Cheers for any advice,

Jimbo

[rod@plasterbrok]

Just use the standard joining method. But use only PAPER TAPE on villaboard.