Half inch gypsum board usually provides sufficient ignition barrier check your local building code.
Hard foam insulation wall panels basement.
Follow with a 2x4 frame wall and insulate it with batt insulation.
This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses.
When this ignition barrier is supported on a stud wall the cavities of this wall may be filled with supplemental insulation.
It provides an r value of 4 per inch of thickness and is the cheapest type of foam board insulation.
After that thin furring strips are installed on top of the foam to provide a firm base for the drywall screws and drywall but can you run rigid foam between the studs just as you would do with fiberglass rolls or spray foam.
The correct method of using rigid foam is to run continuous 4 foot by 8 foot sheets of the foam across the concrete basement wall making the rigid foam the de facto wall.
Basement pre finishing with insulated wall panels installing basement to beautiful wall panels provides you with waterproof wall framing and insulation in a single step.
In most basement wall situations the foam plastic insulation material will need to be covered by a fire ignition barrier.
Eps is used under roofing over foundation walls and beneath siding.
Transforming an unfinished basement into a finished living space is a great way for any family to gain extra room.