Timber frame - plaster board reveals

[Moonshine]

On my timber outbuilding the windows and doors have just gone in and i have taped them for air tightness. 

 

My next challange is how to plasterboard the reveals to get a nice square edge.

 

The board will need to be brought out to fill the gap to the frame.

 

My thoughts are to screw the board to the timber and use packers to bring it out board to the require vetical. 

 

Once in fill the gap between the boards, then paper tape the right angle and them plaster.

 

I have a laser level which should help getting things vertical.

 

[Roundtuit]

I lined ours with some strips of 6mm ply before boarding to close the gap and get over the fixing brackets.  You could double-board, depending on how much you need to make up.

[Bonner]

Stick the reveals in with PB adhesive, then put a few screws in once it has set.

[Moonshine]

2 hours ago, Bonner said:

Stick the reveals in with PB adhesive, then put a few screws in once it has set.

 

I like that idea, this would allow slight variation in the timber without pissing about with packers and the screws will give an extra fixing

[Russell griffiths]

Strips of insulation, glued and screwed, then plasterboard on top. 

[themucky1]

Just fix the board to the timber reveal and foam fill. Personally I’d be more bothered about beading the reveal and getting your edges down to repaint, how come you didn’t wait until the windows were fitted to do the inside?