Installing insulated plasterboard with dry wall adhesive is a straightforward process that requires no specialist methods.  First, raise the board and hold it against the wall, ensuring all edges are straight and level. Once you have applied the adhesive, press the plasterboard onto the wall and hold it firmly until you are sure it is attached. If you have any concerns about the plasterboard being straight and level, a featherhead tool can be used to ensure a smooth surface, as its edges are straight by design.