How To Attach Batt Insulation To Concrete Wall

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.

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. If you wish to insulate without an airspace you can apply rigid foam closed cell directly to the concrete. Attach the blanket to the wall using furring strips or a hilti type gun to drive fasteners into the concrete or cinder blocks. Interior installation using the rigid board batt or spray on methods is the least expensive method.

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. The word insulation typically brings to mind lofty batts of spun fiberglass rigid foam panels and blown in cellulose. If you seal and tape all seams with ac aluminum duct tape this will also form a vapor barrier. Just be sure to use unfaced batts no kraft paper covering.

R max is a good product for this and it also has a radaint barrier to reflect heat back into the room. Closed cell spray polyurethane foam or either xps eps or polyisocyanurate rigid foam. 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. Leave an extra 1 2 in.

See how to insulate a basement wall and tyvek or tar paper question. How to insulate an exterior face of a concrete block wall. Cut lengths of insulation a few inches longer than the height of the walls. Because it isolates the concrete.

Fit adjacent blankets tightly together. 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. 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. 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.

Concrete walls can be insulated on the interior or exterior face or by embedding the material within the wall. Of length for a tighter fit. Any of the following insulation materials are acceptable for this purpose. Use concrete adhesive to secure rigid foam to the wall as needed if friction isn t sufficient.