The instructions for the knauff drylining adhesive I'm using for dot & dab advise using one 25 kilo bag for one and a half 8x4 plasterboards.
This seems excessive, It seems like I'd have to coat the whole board rather than dot it to use that much. Can anyone advise:
1) how much to use per board?
2) how thick to apply?
3) how much gap between wall & board once fixed?