PREPARING THE WALL
Preparation is paramount to achieving a good finish.
Take the time to ensure that the surface is as flat and straight as possible before applying plasterboard.
Remove any nails, old glue or other fixings that are protruding from the timber.
Using an 1800mm straight edge, check the flatness of the wall. There should be no deviations in the framing greater than 2-3mm from the straight edge.
Plane any high areas flat or straighten any misaligned nogs/ dwangs.
Check the timber is dry. The moisture content of the timber should be 18 per cent or less. Timber with a moisture content outside these limits is prone to movement causing problems with joint distortion.
When fixing vertically all joins will need to be made over timber. Plan where your joins will be and make sure these will be over timber.
Horizontal is the recommended