Insulating Concrete Walls With Foam Board

Interior insulation refers to insulation applied to the interior side of the concrete masonry as shown in figure 1.

Insulating concrete walls with foam board.

Use a premade kit for this type of project. Todd poured concrete walls are not perfectly flat. Some types of thicker foam board insulation are available but they may need to be special ordered. Kingspan insulation r 3 common.

For a basement remodeling project consider insulating basement walls with foam board. The insulation may be rigid board extruded or expanded polystyrene or polyisocyanurate closed cell spray polyurethane foam cellular glass fibrous batt or fibrous blown in insulation note however that fibrous insulation is susceptible to moisture. Polystyrene foam boards commonly called foamboard are a clean lightweight convenient way to insulate bare concrete walls. Foam board insulation is easy to use and is a great diy way to add some insulation.

Applications for helix include but are not limited to. 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. When gluing the foam board on the concrete walls there will be voids behind the foam board where it doesn t contour exactly to the wall. Or is the foam board still insulating enough to stop moisture from forming in the voids.

There is almost no mess and the foam isn t itchy like fiberglass. Structural foundations footings slabs walls shotcrete and precast. 0 56 in x 4 ft x 8 ft 1 unfaced polystyrene foam board insulation item 511270 model 100000050497. Attach the tongue and groove insulation boards to the concrete wall with adhesive.

Is this a concern for moisture or mold in the void. 0 56 in x 4 ft x 8 ft. 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. Follow with a 2x4 frame wall and.

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. After the adhesive cures add extension boxes to the outlets and switches and spray foam into every gap top bottom and around each box.