Secondly and this is the best way you can install a drywall to frame the wall before applying foam board insulation.
How to install foam insulation board on a concrete wall.
Now as you glue the panels to the exposed concrete blocks leave a inch gap at the floor and ceiling and cut holes in the panels to fit around outlets and wall switches.
Install the rigid foam insulation place each rigid foam sheet in its own wall bay.
Apply liberal quantities of liquid nails or other suitable bonding agent to the back of the foam insulation boards and spread over the whole board.
Firstly you can apply it directly onto the house s concrete walls with the help of a construction adhesive that will hold it in place.
The fit should be firm but not so firm that the edges of the foam begin to tear.
Apply to 2 or 3 boards at a time.
If necessary address moisture problems and seal cracks before you begin.
Lay a panel of polystyrene.
Move to next board and butt tight to previous board.
The concrete should be dry and free from cracks before installing foam insulation boards.
Press boards up against concrete wall and hold for a few minutes to allow bond to set.
If this happens pull out the sheet and slightly trim down the edges with the saw.