Rigid Foam Insulation On Basement Concrete Walls

For a basement remodeling project consider insulating basement walls with foam board.

Rigid foam insulation on basement concrete walls.

Closed cell spray polyurethane foam or either xps eps or polyisocyanurate rigid foam. Any of the following insulation materials are acceptable for this purpose. Polystyrene foam boards commonly called foamboard are a clean lightweight convenient way to insulate bare concrete walls. Allows spacing for electrical wiring and other utilities.

Creates a finished appearance. I ve read basement insulation systems a research report c 2002 by building sciences corporation. How to glue polystyrene insulation to a concrete wall. 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.

Use a premade kit for this type of project. 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. 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. Styrofoam brand insulation is a rigid insulation that can be placed directly on walls framing and drywall.

When insulating interior basement walls in a finished basement use our styrofoam brand insulation. My basement has some old insulation above the frost line as well as some 2x4s nailed down to the concrete walls. There is almost. 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.