Gap between plasterboard wall & ceiling?

Have just removed the plasterboard ceiling in a room that had coving fitted.

there is a gap hidden behind the coving where the wall plasterboard didnt meet the ceiling board.

i want to replace the ceiling board with new and have the whole room replastered.

whats the best course of action with the ceiling board? The max gap is 40mm

 

Are you saying there is a 40mm gap in wall plasterboard or in the ceiling plasterboard?

If ceiling plasterboard then simply butt up the new plasterboard to the wall plasterboard

 

Yes 40mm gap at the top of wall

 

Clear the plasterboard from the top of the wall so you can slide your new board in.

 

There will still be quite a gap

 

Screw a length of 40mm batten alongside the existing to take up the end of the board.
The existing ceiling will have been sheeted right through to the room next door before the wall was built.

 

Would insulated plasterboard be thick enough to cover the gap?

 

If its 40mm yes.

 

Thanks

i do need to insulate it for noise so im wondering if i should just fit that.

Is fitting it the same as normal plasterboard?

 

Dot n dab.

 

Its going on the ceiling

 

Sorry, normal way! Longer screws.

 

No prob. Thanks for the help.

i think this is the way forward to clear that gap.

 

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