When the entire surface is covered with the panels measure vertically down one panel so that a mark is made every 24 inches.
How to install rigid foam insulation on interior concrete walls.
After the adhesive cures add extension boxes to the outlets and switches and spray foam into every gap top bottom and around each box.
Cut the foam with the mark as guide you may use either a knife or saw to accomplish this process.
The concrete should be dry and free from cracks before installing foam insulation boards.
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.
Foam insulation can be affixed directly to masonry surfaces like brick block and concrete.
Get you measuring tape measure the rigid foam insulation panels and mark the size needed.
Lay a panel of polystyrene.
If necessary address moisture problems and seal cracks before you begin.
After press the panel in between the strips.
The fit should be firm but not so firm that the edges of the foam begin to tear.
Place each rigid foam sheet in its own wall bay.
If this happens pull out the sheet and slightly trim down the edges with the saw.
At each mark make a horizontal line using a carpenter s level.
Check if the panels comfortably fit with the installed furring strips.
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.
There s two ways you can go about with foam board insulation.