How To Attach Batt Insulation To Concrete Wall

We re using unfaced batts that are sized to friction fit into standard stud spaces either 16 in.

How to attach batt insulation to concrete wall.

Attach the blanket to the wall using furring strips or a hilti type gun to drive fasteners into the concrete or cinder blocks. Cut batts slightly long cut batts to length by setting the top of the batt into the space and cutting against the bottom plate with a sharp utility knife. Measure the height of the wall and cut insulation batts to fit snugly between the top and bottom plates horizontal members to which studs are attached. The word insulation typically brings to mind lofty batts of spun fiberglass rigid foam panels and blown in cellulose.

If you are using high density r 15 unfaced batts or special unfaced insulation for masonry walls press it into place left and friction will hold it. 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. Of length for a tighter fit. Rigid foam can be adhered to a poured concrete or concrete block wall with foam compatible adhesive or with special plastic fasteners such as hilti idps or rodenhouse plasti grip pmfs.

R max is a good product for this and it also has a radaint barrier to reflect heat back into the room. Because it isolates the concrete. This drywall is required by most building codes to. See how to insulate a basement wall and tyvek or tar paper question.

Add a layer of 1 2 inch drywall over any rigid foam insulation. Concrete walls can be insulated on the interior or exterior face or by embedding the material within the wall. Use concrete adhesive to secure rigid foam to the wall as needed if friction isn t sufficient. Cut lengths of insulation a few inches longer than the height of the walls.

If you seal and tape all seams with ac aluminum duct tape this will also form a vapor barrier. Any of the following insulation materials are acceptable for this purpose. Leave an extra 1 2 in. Interior installation using the rigid board batt or spray on methods is the least expensive method.

If you wish to insulate without an airspace you can apply rigid foam closed cell directly to the concrete. Usuallly fiberglass is not recommended in basements because it is so air permeable but paired with xps foam sheet at wall would be a hybrid solution. Closed cell spray polyurethane foam or either xps eps or polyisocyanurate rigid foam. Just be sure to use unfaced batts no kraft paper covering.