Rigid Foam Insulation On Basement Concrete Walls

Polystyrene foam boards commonly called foamboard are a clean lightweight convenient way to insulate bare concrete walls.

Rigid foam insulation on basement concrete walls.

There is almost. 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. My basement has some old insulation above the frost line as well as some 2x4s nailed down to the concrete walls. Attach the tongue and groove insulation boards to the concrete wall with adhesive.

Their diagrams indicate foil faced polyisocyanurate rigid foam or xps for insulating the rim joists and the top of the concrete foundation wall then xps rigid foam on the concrete wall face. Allows spacing for electrical wiring and other utilities. I ve read basement insulation systems a research report c 2002 by building sciences corporation. We are going to finish the basement and remove all of the old insulation we ve seen some small skinks lizards hiding in there as well as on our porch and we want to use xps boards along the walls before studding out and drywalling.

The best way to insulate the interior side of a basement wall is with foam insulation that is adhered to or sprayed directly on the concrete. 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. For new construction use rigid boards to insulate slabs and the outside of foundation walls. For a basement remodeling project consider insulating basement walls with foam board.

How to glue polystyrene insulation to a concrete wall. Use a premade kit for this type of project. Any of the following insulation materials are acceptable for this purpose. When insulating interior basement walls in a finished basement use our styrofoam brand insulation.